feat: add job runs chart and scrollable reading lists on dashboard

- Add multi-line chart showing job runs over time by type (scan, rebuild, thumbnails, other) with the same day/week/month toggle - Limit currently reading and recently read lists to 3 visible items with a scrollbar for overflow - Fix NUMERIC→BIGINT cast for SUM/COALESCE in jobs SQL queries Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
chore: bump version to 1.27.0
2026-03-22 10:43:45 +01:00 · 2026-03-22 10:43:25 +01:00 · 2026-03-22 10:27:59 +01:00 · 2026-03-22 10:27:24 +01:00 · 2026-03-22 10:08:15 +01:00 · 2026-03-22 06:52:47 +01:00
147 changed files with 18803 additions and 2060 deletions
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -0,0 +1,17 @@
+name: Deploy with Docker Compose
+
+on:
+  push:
+    branches:
+      - main # adapte la branche que tu veux déployer
+
+jobs:
+  deploy:
+    runs-on: mac-orbstack-runner # le nom que tu as donné au runner
+    steps:
+      - name: Deploy stack
+        env:
+          DOCKER_BUILDKIT: 1
+          COMPOSE_DOCKER_CLI_BUILD: 1
+        run: |
+          BUILDKIT_PROGRESS=plain cd /Users/julienfroidefond/Sites/docker-stack && docker pull julienfroidefond32/stripstream-backoffice && docker pull julienfroidefond32/stripstream-api && docker pull julienfroidefond32/stripstream-indexer && ./scripts/stack.sh up stripstream
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,6 +19,19 @@ dependencies = [
 "cpufeatures",
 ]

+[[package]]
+name = "ahash"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
+dependencies = [
+ "cfg-if",
+ "getrandom 0.3.4",
+ "once_cell",
+ "version_check",
+ "zerocopy",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "1.1.4"
@@ -51,7 +64,7 @@ checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"

 [[package]]
 name = "api"
-version = "1.4.0"
+version = "1.27.0"
 dependencies = [
 "anyhow",
 "argon2",
@@ -63,9 +76,12 @@ dependencies = [
 "image",
 "jpeg-decoder",
 "lru",
+ "notifications",
 "parsers",
 "rand 0.8.5",
+ "regex",
 "reqwest",
+ "scraper",
 "serde",
 "serde_json",
 "sha2",
@@ -463,6 +479,29 @@ dependencies = [
 "typenum",
 ]

+[[package]]
+name = "cssparser"
+version = "0.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7c66d1cd8ed61bf80b38432613a7a2f09401ab8d0501110655f8b341484a3e3"
+dependencies = [
+ "cssparser-macros",
+ "dtoa-short",
+ "itoa",
+ "phf",
+ "smallvec",
+]
+
+[[package]]
+name = "cssparser-macros"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13b588ba4ac1a99f7f2964d24b3d896ddc6bf847ee3855dbd4366f058cfcd331"
+dependencies = [
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "der"
 version = "0.7.10"
@@ -483,6 +522,17 @@ dependencies = [
 "powerfmt",
 ]

+[[package]]
+name = "derive_more"
+version = "0.99.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6edb4b64a43d977b8e99788fe3a04d483834fba1215a7e02caa415b626497f7f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -512,6 +562,21 @@ version = "0.15.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"

+[[package]]
+name = "dtoa"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c3cf4824e2d5f025c7b531afcb2325364084a16806f6d47fbc1f5fbd9960590"
+
+[[package]]
+name = "dtoa-short"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd1511a7b6a56299bd043a9c167a6d2bfb37bf84a6dfceaba651168adfb43c87"
+dependencies = [
+ "dtoa",
+]
+
 [[package]]
 name = "ecb"
 version = "0.1.2"
@@ -521,6 +586,12 @@ dependencies = [
 "cipher",
 ]

+[[package]]
+name = "ego-tree"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c6ba7d4eec39eaa9ab24d44a0e73a7949a1095a8b3f3abb11eddf27dbb56a53"
+
 [[package]]
 name = "either"
 version = "1.15.0"
@@ -629,6 +700,16 @@ dependencies = [
 "percent-encoding",
 ]

+[[package]]
+name = "futf"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df420e2e84819663797d1ec6544b13c5be84629e7bb00dc960d6917db2987843"
+dependencies = [
+ "mac",
+ "new_debug_unreachable",
+]
+
 [[package]]
 name = "futures"
 version = "0.3.32"
@@ -728,6 +809,15 @@ dependencies = [
 "slab",
 ]

+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -738,6 +828,15 @@ dependencies = [
 "version_check",
 ]

+[[package]]
+name = "getopts"
+version = "0.2.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfe4fbac503b8d1f88e6676011885f34b7174f46e59956bba534ba83abded4df"
+dependencies = [
+ "unicode-width",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.17"
@@ -855,6 +954,18 @@ dependencies = [
 "windows-sys 0.61.2",
 ]

+[[package]]
+name = "html5ever"
+version = "0.29.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b7410cae13cbc75623c98ac4cbfd1f0bedddf3227afc24f370cf0f50a44a11c"
+dependencies = [
+ "log",
+ "mac",
+ "markup5ever",
+ "match_token",
+]
+
 [[package]]
 name = "http"
 version = "1.4.0"
@@ -1122,7 +1233,7 @@ dependencies = [

 [[package]]
 name = "indexer"
-version = "1.4.0"
+version = "1.27.0"
 dependencies = [
 "anyhow",
 "axum",
@@ -1130,6 +1241,7 @@ dependencies = [
 "futures",
 "image",
 "jpeg-decoder",
+ "notifications",
 "num_cpus",
 "parsers",
 "reqwest",
@@ -1406,6 +1518,37 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"

+[[package]]
+name = "mac"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
+
+[[package]]
+name = "markup5ever"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7a7213d12e1864c0f002f52c2923d4556935a43dec5e71355c2760e0f6e7a18"
+dependencies = [
+ "log",
+ "phf",
+ "phf_codegen",
+ "string_cache",
+ "string_cache_codegen",
+ "tendril",
+]
+
+[[package]]
+name = "match_token"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88a9689d8d44bf9964484516275f5cd4c9b59457a6940c1d5d0ecbb94510a36b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "matchers"
 version = "0.2.0"
@@ -1496,6 +1639,12 @@ version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "308d96db8debc727c3fd9744aac51751243420e46edf401010908da7f8d5e57c"

+[[package]]
+name = "new_debug_unreachable"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
+
 [[package]]
 name = "nom"
 version = "8.0.0"
@@ -1516,6 +1665,19 @@ dependencies = [
 "nom",
 ]

+[[package]]
+name = "notifications"
+version = "1.27.0"
+dependencies = [
+ "anyhow",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "sqlx",
+ "tokio",
+ "tracing",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.50.3"
@@ -1624,7 +1786,7 @@ dependencies = [

 [[package]]
 name = "parsers"
-version = "1.4.0"
+version = "1.27.0"
 dependencies = [
 "anyhow",
 "flate2",
@@ -1690,6 +1852,58 @@ version = "2.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b4f627cb1b25917193a259e49bdad08f671f8d9708acfd5fe0a8c1455d87220"

+[[package]]
+name = "phf"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
+dependencies = [
+ "phf_macros",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_codegen"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aef8048c789fa5e851558d709946d6d79a8ff88c0440c587967f8e94bfb1216a"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
+dependencies = [
+ "phf_shared",
+ "rand 0.8.5",
+]
+
+[[package]]
+name = "phf_macros"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f84ac04429c13a7ff43785d75ad27569f2951ce0ffd30a3321230db2fc727216"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
+[[package]]
+name = "phf_shared"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.17"
@@ -1793,6 +2007,12 @@ dependencies = [
 "zerocopy",
 ]

+[[package]]
+name = "precomputed-hash"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
+
 [[package]]
 name = "prettyplease"
 version = "0.2.37"
@@ -2065,6 +2285,7 @@ dependencies = [
 "base64",
 "bytes",
 "futures-core",
+ "futures-util",
 "http",
 "http-body",
 "http-body-util",
@@ -2073,6 +2294,7 @@ dependencies = [
 "hyper-util",
 "js-sys",
 "log",
+ "mime_guess",
 "percent-encoding",
 "pin-project-lite",
 "quinn",
@@ -2230,6 +2452,41 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"

+[[package]]
+name = "scraper"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0e749d29b2064585327af5038a5a8eb73aeebad4a3472e83531a436563f7208"
+dependencies = [
+ "ahash",
+ "cssparser",
+ "ego-tree",
+ "getopts",
+ "html5ever",
+ "precomputed-hash",
+ "selectors",
+ "tendril",
+]
+
+[[package]]
+name = "selectors"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd568a4c9bb598e291a08244a5c1f5a8a6650bee243b5b0f8dbb3d9cc1d87fe8"
+dependencies = [
+ "bitflags",
+ "cssparser",
+ "derive_more",
+ "fxhash",
+ "log",
+ "new_debug_unreachable",
+ "phf",
+ "phf_codegen",
+ "precomputed-hash",
+ "servo_arc",
+ "smallvec",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.27"
@@ -2302,6 +2559,15 @@ dependencies = [
 "serde",
 ]

+[[package]]
+name = "servo_arc"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "170fb83ab34de17dc69aa7c67482b22218ddb85da56546f9bd6b929e32a05930"
+dependencies = [
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.6"
@@ -2365,6 +2631,12 @@ version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e320a6c5ad31d271ad523dcf3ad13e2767ad8b1cb8f047f75a8aeaf8da139da2"

+[[package]]
+name = "siphasher"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2aa850e253778c88a04c3d7323b043aeda9d3e30d5971937c1855769763678e"
+
 [[package]]
 name = "slab"
 version = "0.4.12"
@@ -2613,6 +2885,31 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"

+[[package]]
+name = "string_cache"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf776ba3fa74f83bf4b63c3dcbbf82173db2632ed8452cb2d891d33f459de70f"
+dependencies = [
+ "new_debug_unreachable",
+ "parking_lot",
+ "phf_shared",
+ "precomputed-hash",
+ "serde",
+]
+
+[[package]]
+name = "string_cache_codegen"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c711928715f1fe0fe509c53b43e993a9a557babc2d0a3567d0a3006f1ac931a0"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+]
+
 [[package]]
 name = "stringprep"
 version = "0.1.5"
@@ -2626,7 +2923,7 @@ dependencies = [

 [[package]]
 name = "stripstream-core"
-version = "1.4.0"
+version = "1.27.0"
 dependencies = [
 "anyhow",
 "serde",
@@ -2679,6 +2976,17 @@ dependencies = [
 "syn 2.0.117",
 ]

+[[package]]
+name = "tendril"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d24a120c5fc464a3458240ee02c299ebcb9d67b5249c8848b09d639dca8d7bb0"
+dependencies = [
+ "futf",
+ "mac",
+ "utf-8",
+]
+
 [[package]]
 name = "thiserror"
 version = "2.0.18"
@@ -2991,6 +3299,12 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7df058c713841ad818f1dc5d3fd88063241cc61f49f5fbea4b951e8cf5a8d71d"

+[[package]]
+name = "unicode-width"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.6"
@@ -3038,6 +3352,12 @@ dependencies = [
 "serde",
 ]

+[[package]]
+name = "utf-8"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
+
 [[package]]
 name = "utf16string"
 version = "0.2.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,13 +3,14 @@ members = [
  "apps/api",
  "apps/indexer",
  "crates/core",
+  "crates/notifications",
  "crates/parsers",
 ]
 resolver = "2"

 [workspace.package]
 edition = "2021"
-version = "1.4.0"
+version = "1.27.0"
 license = "MIT"

 [workspace.dependencies]
@@ -22,7 +23,7 @@ image = { version = "0.25", default-features = false, features = ["jpeg", "png",
 jpeg-decoder = "0.3"
 lru = "0.12"
 rayon = "1.10"
-reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "multipart", "rustls-tls"] }
 rand = "0.8"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
@@ -41,3 +42,4 @@ walkdir = "2.5"
 webp = "0.3"
 utoipa = "4.0"
 utoipa-swagger-ui = "6.0"
+scraper = "0.21"
--- a/21
+++ b/21
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Julien Froidefond
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@@ -81,28 +81,66 @@ The backoffice will be available at http://localhost:7082

 ## Features

-### Libraries Management
- Create and manage multiple libraries
- Configure automatic scanning schedules (hourly, daily, weekly)
- Real-time file watcher for instant indexing
- Full and incremental rebuild options
+> For the full feature list, business rules, and API details, see [docs/FEATURES.md](docs/FEATURES.md).

-### Books Management
- Support for CBZ, CBR, and PDF formats
- Automatic metadata extraction
- Series and volume detection
- Full-text search powered by PostgreSQL
+### Libraries
+- Multi-library management with per-library configuration
+- Incremental and full scanning, real-time filesystem watcher
+- Per-library metadata provider selection (Google Books, ComicVine, BedéThèque, AniList, Open Library)

-### Jobs Monitoring
- Real-time job progress tracking
- Detailed statistics (scanned, indexed, removed, errors)
- Job history and logs
- Cancel pending jobs
+### Books & Series
+- **Formats**: CBZ, CBR, PDF, EPUB
+- Automatic metadata extraction (title, series, volume, authors, page count) from filenames and directory structure
+- Series aggregation with missing volume detection
+- Thumbnail generation (WebP/JPEG/PNG) with lazy generation and bulk rebuild
+- CBR → CBZ conversion

-### Search
- Full-text search across titles, authors, and series
- Library filtering
- Real-time suggestions
+### Reading Progress
+- Per-book tracking: unread / reading / read with current page
+- Series-level aggregated reading status
+- Bulk mark-as-read for series
+
+### Search & Discovery
+- Full-text search across titles, authors, and series (PostgreSQL `pg_trgm`)
+- Author listing with book/series counts
+- Filtering by reading status, series status, format, metadata provider
+
+### External Metadata
+- Search, match, approve/reject workflow with confidence scoring
+- Batch auto-matching and scheduled metadata refresh
+- Field locking to protect manual edits from sync
+
+### Notifications
+- **Telegram**: real-time notifications via Telegram Bot API
+- 12 granular event toggles (scans, thumbnails, conversions, metadata)
+- Book thumbnail images included in notifications where applicable
+- Test connection from settings
+
+### External Integrations
+- **Komga**: import reading progress
+- **Prowlarr**: search for missing volumes
+- **qBittorrent**: add torrents directly from search results
+
+### Background Jobs
+- Rebuild, rescan, thumbnail generation, metadata batch, CBR conversion
+- Real-time progress via Server-Sent Events (SSE)
+- Job history, error tracking, cancellation
+
+### Page Rendering
+- On-demand page extraction from all formats
+- Image processing (format, quality, max width, resampling filter)
+- LRU in-memory + disk cache
+
+### Security
+- Token-based auth (`admin` / `read` scopes) with Argon2 hashing
+- Rate limiting, token expiration and revocation
+
+### Web UI (Backoffice)
+- Dashboard with statistics, interactive charts (recharts), and reading progress
+- Currently reading & recently read sections
+- Library, book, series, author management
+- Live job monitoring, metadata search modals, settings panel
+- Notification settings with per-event toggle configuration

 ## Environment Variables

@@ -249,4 +287,4 @@ volumes:

 ## License

-[Your License Here]
+This project is licensed under the [MIT License](LICENSE).
--- a/apps/api/Cargo.toml
+++ b/apps/api/Cargo.toml
@@ -15,10 +15,12 @@ futures = "0.3"
 image.workspace = true
 jpeg-decoder.workspace = true
 lru.workspace = true
+notifications = { path = "../../crates/notifications" }
 stripstream-core = { path = "../../crates/core" }
 parsers = { path = "../../crates/parsers" }
 rand.workspace = true
 tokio-stream = "0.1"
+regex = "1"
 reqwest.workspace = true
 serde.workspace = true
 serde_json.workspace = true
@@ -33,3 +35,4 @@ uuid.workspace = true
 utoipa.workspace = true
 utoipa-swagger-ui = { workspace = true, features = ["axum"] }
 webp.workspace = true
+scraper.workspace = true
--- a/apps/api/Dockerfile
+++ b/apps/api/Dockerfile
@@ -6,13 +6,15 @@ COPY Cargo.toml ./
 COPY apps/api/Cargo.toml apps/api/Cargo.toml
 COPY apps/indexer/Cargo.toml apps/indexer/Cargo.toml
 COPY crates/core/Cargo.toml crates/core/Cargo.toml
+COPY crates/notifications/Cargo.toml crates/notifications/Cargo.toml
 COPY crates/parsers/Cargo.toml crates/parsers/Cargo.toml

-RUN mkdir -p apps/api/src apps/indexer/src crates/core/src crates/parsers/src && \
+RUN mkdir -p apps/api/src apps/indexer/src crates/core/src crates/notifications/src crates/parsers/src && \
    echo "fn main() {}" > apps/api/src/main.rs && \
    echo "fn main() {}" > apps/indexer/src/main.rs && \
    echo "" > apps/indexer/src/lib.rs && \
    echo "" > crates/core/src/lib.rs && \
+    echo "" > crates/notifications/src/lib.rs && \
    echo "" > crates/parsers/src/lib.rs

 # Build dependencies only (cached as long as Cargo.toml files don't change)
@@ -26,11 +28,13 @@ RUN --mount=type=cache,target=/usr/local/cargo/registry \
 COPY apps/api/src apps/api/src
 COPY apps/indexer/src apps/indexer/src
 COPY crates/core/src crates/core/src
+COPY crates/notifications/src crates/notifications/src
 COPY crates/parsers/src crates/parsers/src

 RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/usr/local/cargo/git \
    --mount=type=cache,target=/app/target \
+    touch apps/api/src/main.rs crates/core/src/lib.rs crates/notifications/src/lib.rs crates/parsers/src/lib.rs && \
    cargo build --release -p api && \
    cp /app/target/release/api /usr/local/bin/api

--- a/apps/api/src/authors.rs
+++ b/apps/api/src/authors.rs
@@ -0,0 +1,178 @@
+use axum::{extract::{Query, State}, Json};
+use serde::{Deserialize, Serialize};
+use sqlx::Row;
+use utoipa::ToSchema;
+
+use crate::{error::ApiError, state::AppState};
+
+#[derive(Deserialize, ToSchema)]
+pub struct ListAuthorsQuery {
+    #[schema(value_type = Option<String>, example = "batman")]
+    pub q: Option<String>,
+    #[schema(value_type = Option<i64>, example = 1)]
+    pub page: Option<i64>,
+    #[schema(value_type = Option<i64>, example = 20)]
+    pub limit: Option<i64>,
+    /// Sort order: "name" (default), "books" (most books first)
+    #[schema(value_type = Option<String>, example = "books")]
+    pub sort: Option<String>,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct AuthorItem {
+    pub name: String,
+    pub book_count: i64,
+    pub series_count: i64,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct AuthorsPageResponse {
+    pub items: Vec<AuthorItem>,
+    pub total: i64,
+    pub page: i64,
+    pub limit: i64,
+}
+
+/// List all unique authors with book/series counts
+#[utoipa::path(
+    get,
+    path = "/authors",
+    tag = "authors",
+    params(
+        ("q" = Option<String>, Query, description = "Search by author name"),
+        ("page" = Option<i64>, Query, description = "Page number (1-based)"),
+        ("limit" = Option<i64>, Query, description = "Items per page (max 100)"),
+        ("sort" = Option<String>, Query, description = "Sort: name (default) or books"),
+    ),
+    responses(
+        (status = 200, body = AuthorsPageResponse),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn list_authors(
+    State(state): State<AppState>,
+    Query(query): Query<ListAuthorsQuery>,
+) -> Result<Json<AuthorsPageResponse>, ApiError> {
+    let page = query.page.unwrap_or(1).max(1);
+    let limit = query.limit.unwrap_or(20).clamp(1, 100);
+    let offset = (page - 1) * limit;
+    let sort = query.sort.as_deref().unwrap_or("name");
+
+    let order_clause = match sort {
+        "books" => "book_count DESC, name ASC",
+        _ => "name ASC",
+    };
+
+    let q_pattern = query.q.as_deref()
+        .filter(|s| !s.trim().is_empty())
+        .map(|s| format!("%{s}%"));
+
+    // Aggregate unique authors from books.authors + books.author + series_metadata.authors
+    let sql = format!(
+        r#"
+        WITH all_authors AS (
+            SELECT DISTINCT UNNEST(
+                COALESCE(
+                    NULLIF(authors, '{{}}'),
+                    CASE WHEN author IS NOT NULL AND author != '' THEN ARRAY[author] ELSE ARRAY[]::text[] END
+                )
+            ) AS name
+            FROM books
+            UNION
+            SELECT DISTINCT UNNEST(authors) AS name
+            FROM series_metadata
+            WHERE authors != '{{}}'
+        ),
+        filtered AS (
+            SELECT name FROM all_authors
+            WHERE ($1::text IS NULL OR name ILIKE $1)
+        ),
+        book_counts AS (
+            SELECT
+                f.name AS author_name,
+                COUNT(DISTINCT b.id) AS book_count
+            FROM filtered f
+            LEFT JOIN books b ON (
+                f.name = ANY(
+                    COALESCE(
+                        NULLIF(b.authors, '{{}}'),
+                        CASE WHEN b.author IS NOT NULL AND b.author != '' THEN ARRAY[b.author] ELSE ARRAY[]::text[] END
+                    )
+                )
+            )
+            GROUP BY f.name
+        ),
+        series_counts AS (
+            SELECT
+                f.name AS author_name,
+                COUNT(DISTINCT (sm.library_id, sm.name)) AS series_count
+            FROM filtered f
+            LEFT JOIN series_metadata sm ON (
+                f.name = ANY(sm.authors) AND sm.authors != '{{}}'
+            )
+            GROUP BY f.name
+        )
+        SELECT
+            f.name,
+            COALESCE(bc.book_count, 0) AS book_count,
+            COALESCE(sc.series_count, 0) AS series_count
+        FROM filtered f
+        LEFT JOIN book_counts bc ON bc.author_name = f.name
+        LEFT JOIN series_counts sc ON sc.author_name = f.name
+        ORDER BY {order_clause}
+        LIMIT $2 OFFSET $3
+        "#
+    );
+
+    let count_sql = r#"
+        WITH all_authors AS (
+            SELECT DISTINCT UNNEST(
+                COALESCE(
+                    NULLIF(authors, '{}'),
+                    CASE WHEN author IS NOT NULL AND author != '' THEN ARRAY[author] ELSE ARRAY[]::text[] END
+                )
+            ) AS name
+            FROM books
+            UNION
+            SELECT DISTINCT UNNEST(authors) AS name
+            FROM series_metadata
+            WHERE authors != '{}'
+        )
+        SELECT COUNT(*) AS total
+        FROM all_authors
+        WHERE ($1::text IS NULL OR name ILIKE $1)
+    "#;
+
+    let (rows, count_row) = tokio::join!(
+        sqlx::query(&sql)
+            .bind(q_pattern.as_deref())
+            .bind(limit)
+            .bind(offset)
+            .fetch_all(&state.pool),
+        sqlx::query(count_sql)
+            .bind(q_pattern.as_deref())
+            .fetch_one(&state.pool)
+    );
+
+    let rows = rows.map_err(|e| ApiError::internal(format!("authors query failed: {e}")))?;
+    let total: i64 = count_row
+        .map_err(|e| ApiError::internal(format!("authors count failed: {e}")))?
+        .get("total");
+
+    let items: Vec<AuthorItem> = rows
+        .iter()
+        .map(|r| AuthorItem {
+            name: r.get("name"),
+            book_count: r.get("book_count"),
+            series_count: r.get("series_count"),
+        })
+        .collect();
+
+    Ok(Json(AuthorsPageResponse {
+        items,
+        total,
+        page,
+        limit,
+    }))
+}
--- a/apps/api/src/books.rs
+++ b/apps/api/src/books.rs
@@ -19,6 +19,9 @@ pub struct ListBooksQuery {
    pub series: Option<String>,
    #[schema(value_type = Option<String>, example = "unread,reading")]
    pub reading_status: Option<String>,
+    /// Filter by exact author name (matches in authors array or scalar author field)
+    #[schema(value_type = Option<String>)]
+    pub author: Option<String>,
    #[schema(value_type = Option<i64>, example = 1)]
    pub page: Option<i64>,
    #[schema(value_type = Option<i64>, example = 50)]
@@ -26,6 +29,9 @@ pub struct ListBooksQuery {
    /// Sort order: "title" (default) or "latest" (most recently added first)
    #[schema(value_type = Option<String>, example = "latest")]
    pub sort: Option<String>,
+    /// Filter by metadata provider: "linked" (any provider), "unlinked" (no provider), or a specific provider name
+    #[schema(value_type = Option<String>, example = "linked")]
+    pub metadata_provider: Option<String>,
 }

 #[derive(Serialize, ToSchema)]
@@ -84,6 +90,12 @@ pub struct BookDetails {
    pub reading_current_page: Option<i32>,
    #[schema(value_type = Option<String>)]
    pub reading_last_read_at: Option<DateTime<Utc>>,
+    pub summary: Option<String>,
+    pub isbn: Option<String>,
+    pub publish_date: Option<String>,
+    /// Fields locked from external metadata sync
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub locked_fields: Option<serde_json::Value>,
 }

 /// List books with optional filtering and pagination
@@ -93,12 +105,13 @@ pub struct BookDetails {
    tag = "books",
    params(
        ("library_id" = Option<String>, Query, description = "Filter by library ID"),
-        ("kind" = Option<String>, Query, description = "Filter by book kind (cbz, cbr, pdf)"),
+        ("kind" = Option<String>, Query, description = "Filter by book kind (cbz, cbr, pdf, epub)"),
        ("series" = Option<String>, Query, description = "Filter by series name (use 'unclassified' for books without series)"),
        ("reading_status" = Option<String>, Query, description = "Filter by reading status, comma-separated (e.g. 'unread,reading')"),
        ("page" = Option<i64>, Query, description = "Page number (1-indexed, default 1)"),
        ("limit" = Option<i64>, Query, description = "Items per page (max 200, default 50)"),
        ("sort" = Option<String>, Query, description = "Sort order: 'title' (default) or 'latest' (most recently added first)"),
+        ("metadata_provider" = Option<String>, Query, description = "Filter by metadata provider: 'linked' (any provider), 'unlinked' (no provider), or a specific provider name"),
    ),
    responses(
        (status = 200, body = BooksPage),
@@ -129,15 +142,37 @@ pub async fn list_books(
    let rs_cond = if reading_statuses.is_some() {
        p += 1; format!("AND COALESCE(brp.status, 'unread') = ANY(${p})")
    } else { String::new() };
+    let author_cond = if query.author.is_some() {
+        p += 1; format!("AND (${p} = ANY(COALESCE(NULLIF(b.authors, '{{}}'), CASE WHEN b.author IS NOT NULL AND b.author != '' THEN ARRAY[b.author] ELSE ARRAY[]::text[] END)) OR EXISTS (SELECT 1 FROM series_metadata sm WHERE sm.library_id = b.library_id AND sm.name = b.series AND ${p} = ANY(sm.authors)))")
+    } else { String::new() };
+    let metadata_cond = match query.metadata_provider.as_deref() {
+        Some("unlinked") => "AND eml.id IS NULL".to_string(),
+        Some("linked") => "AND eml.id IS NOT NULL".to_string(),
+        Some(_) => { p += 1; format!("AND eml.provider = ${p}") },
+        None => String::new(),
+    };
+
+    let metadata_links_cte = r#"
+        metadata_links AS (
+            SELECT DISTINCT ON (eml.series_name, eml.library_id)
+                eml.series_name, eml.library_id, eml.provider, eml.id
+            FROM external_metadata_links eml
+            WHERE eml.status = 'approved'
+            ORDER BY eml.series_name, eml.library_id, eml.created_at DESC
+        )"#;

    let count_sql = format!(
-        r#"SELECT COUNT(*) FROM books b
+        r#"WITH {metadata_links_cte}
+           SELECT COUNT(*) FROM books b
           LEFT JOIN book_reading_progress brp ON brp.book_id = b.id
+           LEFT JOIN metadata_links eml ON eml.series_name = b.series AND eml.library_id = b.library_id
           WHERE ($1::uuid IS NULL OR b.library_id = $1)
             AND ($2::text IS NULL OR b.kind = $2)
             AND ($3::text IS NULL OR b.format = $3)
             {series_cond}
-             {rs_cond}"#
+             {rs_cond}
+             {author_cond}
+             {metadata_cond}"#
    );

    let order_clause = if query.sort.as_deref() == Some("latest") {
@@ -151,17 +186,21 @@ pub async fn list_books(
    let offset_p = p + 2;
    let data_sql = format!(
        r#"
+        WITH {metadata_links_cte}
        SELECT b.id, b.library_id, b.kind, b.format, b.title, b.author, b.authors, b.series, b.volume, b.language, b.page_count, b.thumbnail_path, b.updated_at,
               COALESCE(brp.status, 'unread') AS reading_status,
               brp.current_page AS reading_current_page,
               brp.last_read_at AS reading_last_read_at
        FROM books b
        LEFT JOIN book_reading_progress brp ON brp.book_id = b.id
+        LEFT JOIN metadata_links eml ON eml.series_name = b.series AND eml.library_id = b.library_id
        WHERE ($1::uuid IS NULL OR b.library_id = $1)
          AND ($2::text IS NULL OR b.kind = $2)
          AND ($3::text IS NULL OR b.format = $3)
          {series_cond}
          {rs_cond}
+          {author_cond}
+          {metadata_cond}
        ORDER BY {order_clause}
        LIMIT ${limit_p} OFFSET ${offset_p}
        "#
@@ -186,6 +225,16 @@ pub async fn list_books(
        count_builder = count_builder.bind(statuses.clone());
        data_builder = data_builder.bind(statuses.clone());
    }
+    if let Some(ref author) = query.author {
+        count_builder = count_builder.bind(author.clone());
+        data_builder = data_builder.bind(author.clone());
+    }
+    if let Some(ref mp) = query.metadata_provider {
+        if mp != "linked" && mp != "unlinked" {
+            count_builder = count_builder.bind(mp.clone());
+            data_builder = data_builder.bind(mp.clone());
+        }
+    }

    data_builder = data_builder.bind(limit).bind(offset);

@@ -249,7 +298,7 @@ pub async fn get_book(
 ) -> Result<Json<BookDetails>, ApiError> {
    let row = sqlx::query(
        r#"
-        SELECT b.id, b.library_id, b.kind, b.title, b.author, b.authors, b.series, b.volume, b.language, b.page_count, b.thumbnail_path,
+        SELECT b.id, b.library_id, b.kind, b.title, b.author, b.authors, b.series, b.volume, b.language, b.page_count, b.thumbnail_path, b.locked_fields, b.summary, b.isbn, b.publish_date,
               bf.abs_path, bf.format, bf.parse_status,
               COALESCE(brp.status, 'unread') AS reading_status,
               brp.current_page AS reading_current_page,
@@ -290,560 +339,16 @@ pub async fn get_book(
        reading_status: row.get("reading_status"),
        reading_current_page: row.get("reading_current_page"),
        reading_last_read_at: row.get("reading_last_read_at"),
+        summary: row.get("summary"),
+        isbn: row.get("isbn"),
+        publish_date: row.get("publish_date"),
+        locked_fields: Some(row.get::<serde_json::Value, _>("locked_fields")),
    }))
 }

-#[derive(Serialize, ToSchema)]
-pub struct SeriesItem {
-    pub name: String,
-    pub book_count: i64,
-    pub books_read_count: i64,
-    #[schema(value_type = String)]
-    pub first_book_id: Uuid,
-    #[schema(value_type = String)]
-    pub library_id: Uuid,
-}
+// ─── Helpers ──────────────────────────────────────────────────────────────────

-#[derive(Serialize, ToSchema)]
-pub struct SeriesPage {
-    pub items: Vec<SeriesItem>,
-    pub total: i64,
-    pub page: i64,
-    pub limit: i64,
-}
-
-#[derive(Deserialize, ToSchema)]
-pub struct ListSeriesQuery {
-    #[schema(value_type = Option<String>, example = "dragon")]
-    pub q: Option<String>,
-    #[schema(value_type = Option<String>, example = "unread,reading")]
-    pub reading_status: Option<String>,
-    #[schema(value_type = Option<i64>, example = 1)]
-    pub page: Option<i64>,
-    #[schema(value_type = Option<i64>, example = 50)]
-    pub limit: Option<i64>,
-}
-
-/// List all series in a library with pagination
-#[utoipa::path(
-    get,
-    path = "/libraries/{library_id}/series",
-    tag = "books",
-    params(
-        ("library_id" = String, Path, description = "Library UUID"),
-        ("q" = Option<String>, Query, description = "Filter by series name (case-insensitive, partial match)"),
-        ("reading_status" = Option<String>, Query, description = "Filter by reading status, comma-separated (e.g. 'unread,reading')"),
-        ("page" = Option<i64>, Query, description = "Page number (1-indexed, default 1)"),
-        ("limit" = Option<i64>, Query, description = "Items per page (max 200, default 50)"),
-    ),
-    responses(
-        (status = 200, body = SeriesPage),
-        (status = 401, description = "Unauthorized"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn list_series(
-    State(state): State<AppState>,
-    Path(library_id): Path<Uuid>,
-    Query(query): Query<ListSeriesQuery>,
-) -> Result<Json<SeriesPage>, ApiError> {
-    let limit = query.limit.unwrap_or(50).clamp(1, 200);
-    let page = query.page.unwrap_or(1).max(1);
-    let offset = (page - 1) * limit;
-
-    let reading_statuses: Option<Vec<String>> = query.reading_status.as_deref().map(|s| {
-        s.split(',').map(|v| v.trim().to_string()).filter(|v| !v.is_empty()).collect()
-    });
-
-    let series_status_expr = r#"CASE
-              WHEN sc.books_read_count = sc.book_count THEN 'read'
-              WHEN sc.books_read_count = 0 THEN 'unread'
-              ELSE 'reading'
-           END"#;
-
-    // Paramètres dynamiques — $1 = library_id fixe, puis optionnels dans l'ordre
-    let mut p: usize = 1;
-
-    let q_cond = if query.q.is_some() {
-        p += 1; format!("AND sc.name ILIKE ${p}")
-    } else { String::new() };
-
-    let count_rs_cond = if reading_statuses.is_some() {
-        p += 1; format!("AND {series_status_expr} = ANY(${p})")
-    } else { String::new() };
-
-    // q_cond et count_rs_cond partagent le même p — le count_sql les réutilise directement
-    let count_sql = format!(
-        r#"
-        WITH sorted_books AS (
-            SELECT COALESCE(NULLIF(series, ''), 'unclassified') as name, id
-            FROM books WHERE library_id = $1
-        ),
-        series_counts AS (
-            SELECT sb.name,
-                COUNT(*) as book_count,
-                COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') as books_read_count
-            FROM sorted_books sb
-            LEFT JOIN book_reading_progress brp ON brp.book_id = sb.id
-            GROUP BY sb.name
-        )
-        SELECT COUNT(*) FROM series_counts sc WHERE TRUE {q_cond} {count_rs_cond}
-        "#
-    );
-
-    // DATA: mêmes params dans le même ordre, puis limit/offset à la fin
-    let limit_p = p + 1;
-    let offset_p = p + 2;
-
-    let data_sql = format!(
-        r#"
-        WITH sorted_books AS (
-            SELECT
-                COALESCE(NULLIF(series, ''), 'unclassified') as name,
-                id,
-                ROW_NUMBER() OVER (
-                    PARTITION BY COALESCE(NULLIF(series, ''), 'unclassified')
-                    ORDER BY
-                        volume NULLS LAST,
-                        REGEXP_REPLACE(LOWER(title), '[0-9].*$', ''),
-                        COALESCE((REGEXP_MATCH(LOWER(title), '\d+'))[1]::int, 0),
-                        title ASC
-                ) as rn
-            FROM books
-            WHERE library_id = $1
-        ),
-        series_counts AS (
-            SELECT
-                sb.name,
-                COUNT(*) as book_count,
-                COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') as books_read_count
-            FROM sorted_books sb
-            LEFT JOIN book_reading_progress brp ON brp.book_id = sb.id
-            GROUP BY sb.name
-        )
-        SELECT
-            sc.name,
-            sc.book_count,
-            sc.books_read_count,
-            sb.id as first_book_id
-        FROM series_counts sc
-        JOIN sorted_books sb ON sb.name = sc.name AND sb.rn = 1
-        WHERE TRUE
-          {q_cond}
-          {count_rs_cond}
-        ORDER BY
-            REGEXP_REPLACE(LOWER(sc.name), '[0-9].*$', ''),
-            COALESCE(
-                (REGEXP_MATCH(LOWER(sc.name), '\d+'))[1]::int,
-                0
-            ),
-            sc.name ASC
-        LIMIT ${limit_p} OFFSET ${offset_p}
-        "#
-    );
-
-    let q_pattern = query.q.as_deref().map(|q| format!("%{}%", q));
-
-    let mut count_builder = sqlx::query(&count_sql).bind(library_id);
-    let mut data_builder = sqlx::query(&data_sql).bind(library_id);
-
-    if let Some(ref pat) = q_pattern {
-        count_builder = count_builder.bind(pat);
-        data_builder = data_builder.bind(pat);
-    }
-    if let Some(ref statuses) = reading_statuses {
-        count_builder = count_builder.bind(statuses.clone());
-        data_builder = data_builder.bind(statuses.clone());
-    }
-
-    data_builder = data_builder.bind(limit).bind(offset);
-
-    let (count_row, rows) = tokio::try_join!(
-        count_builder.fetch_one(&state.pool),
-        data_builder.fetch_all(&state.pool),
-    )?;
-    let total: i64 = count_row.get(0);
-
-    let mut items: Vec<SeriesItem> = rows
-        .iter()
-        .map(|row| SeriesItem {
-            name: row.get("name"),
-            book_count: row.get("book_count"),
-            books_read_count: row.get("books_read_count"),
-            first_book_id: row.get("first_book_id"),
-            library_id,
-        })
-        .collect();
-
-    Ok(Json(SeriesPage {
-        items: std::mem::take(&mut items),
-        total,
-        page,
-        limit,
-    }))
-}
-
-#[derive(Deserialize, ToSchema)]
-pub struct ListAllSeriesQuery {
-    #[schema(value_type = Option<String>, example = "dragon")]
-    pub q: Option<String>,
-    #[schema(value_type = Option<String>)]
-    pub library_id: Option<Uuid>,
-    #[schema(value_type = Option<String>, example = "unread,reading")]
-    pub reading_status: Option<String>,
-    #[schema(value_type = Option<i64>, example = 1)]
-    pub page: Option<i64>,
-    #[schema(value_type = Option<i64>, example = 50)]
-    pub limit: Option<i64>,
-    /// Sort order: "title" (default) or "latest" (most recently added first)
-    #[schema(value_type = Option<String>, example = "latest")]
-    pub sort: Option<String>,
-}
-
-/// List all series across libraries with optional filtering and pagination
-#[utoipa::path(
-    get,
-    path = "/series",
-    tag = "books",
-    params(
-        ("q" = Option<String>, Query, description = "Filter by series name (case-insensitive, partial match)"),
-        ("library_id" = Option<String>, Query, description = "Filter by library ID"),
-        ("reading_status" = Option<String>, Query, description = "Filter by reading status, comma-separated (e.g. 'unread,reading')"),
-        ("page" = Option<i64>, Query, description = "Page number (1-indexed, default 1)"),
-        ("limit" = Option<i64>, Query, description = "Items per page (max 200, default 50)"),
-        ("sort" = Option<String>, Query, description = "Sort order: 'title' (default) or 'latest' (most recently added first)"),
-    ),
-    responses(
-        (status = 200, body = SeriesPage),
-        (status = 401, description = "Unauthorized"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn list_all_series(
-    State(state): State<AppState>,
-    Query(query): Query<ListAllSeriesQuery>,
-) -> Result<Json<SeriesPage>, ApiError> {
-    let limit = query.limit.unwrap_or(50).clamp(1, 200);
-    let page = query.page.unwrap_or(1).max(1);
-    let offset = (page - 1) * limit;
-
-    let reading_statuses: Option<Vec<String>> = query.reading_status.as_deref().map(|s| {
-        s.split(',').map(|v| v.trim().to_string()).filter(|v| !v.is_empty()).collect()
-    });
-
-    let series_status_expr = r#"CASE
-              WHEN sc.books_read_count = sc.book_count THEN 'read'
-              WHEN sc.books_read_count = 0 THEN 'unread'
-              ELSE 'reading'
-           END"#;
-
-    let mut p: usize = 0;
-
-    let lib_cond = if query.library_id.is_some() {
-        p += 1; format!("WHERE library_id = ${p}")
-    } else {
-        "WHERE TRUE".to_string()
-    };
-
-    let q_cond = if query.q.is_some() {
-        p += 1; format!("AND sc.name ILIKE ${p}")
-    } else { String::new() };
-
-    let rs_cond = if reading_statuses.is_some() {
-        p += 1; format!("AND {series_status_expr} = ANY(${p})")
-    } else { String::new() };
-
-    let count_sql = format!(
-        r#"
-        WITH sorted_books AS (
-            SELECT COALESCE(NULLIF(series, ''), 'unclassified') as name, id
-            FROM books {lib_cond}
-        ),
-        series_counts AS (
-            SELECT sb.name,
-                COUNT(*) as book_count,
-                COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') as books_read_count
-            FROM sorted_books sb
-            LEFT JOIN book_reading_progress brp ON brp.book_id = sb.id
-            GROUP BY sb.name
-        )
-        SELECT COUNT(*) FROM series_counts sc WHERE TRUE {q_cond} {rs_cond}
-        "#
-    );
-
-    let series_order_clause = if query.sort.as_deref() == Some("latest") {
-        "sc.latest_updated_at DESC".to_string()
-    } else {
-        "REGEXP_REPLACE(LOWER(sc.name), '[0-9].*$', ''), COALESCE((REGEXP_MATCH(LOWER(sc.name), '\\d+'))[1]::int, 0), sc.name ASC".to_string()
-    };
-
-    let limit_p = p + 1;
-    let offset_p = p + 2;
-
-    let data_sql = format!(
-        r#"
-        WITH sorted_books AS (
-            SELECT
-                COALESCE(NULLIF(series, ''), 'unclassified') as name,
-                id,
-                library_id,
-                updated_at,
-                ROW_NUMBER() OVER (
-                    PARTITION BY COALESCE(NULLIF(series, ''), 'unclassified')
-                    ORDER BY
-                        volume NULLS LAST,
-                        REGEXP_REPLACE(LOWER(title), '[0-9].*$', ''),
-                        COALESCE((REGEXP_MATCH(LOWER(title), '\d+'))[1]::int, 0),
-                        title ASC
-                ) as rn
-            FROM books
-            {lib_cond}
-        ),
-        series_counts AS (
-            SELECT
-                sb.name,
-                COUNT(*) as book_count,
-                COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') as books_read_count,
-                MAX(sb.updated_at) as latest_updated_at
-            FROM sorted_books sb
-            LEFT JOIN book_reading_progress brp ON brp.book_id = sb.id
-            GROUP BY sb.name
-        )
-        SELECT
-            sc.name,
-            sc.book_count,
-            sc.books_read_count,
-            sb.id as first_book_id,
-            sb.library_id
-        FROM series_counts sc
-        JOIN sorted_books sb ON sb.name = sc.name AND sb.rn = 1
-        WHERE TRUE
-          {q_cond}
-          {rs_cond}
-        ORDER BY {series_order_clause}
-        LIMIT ${limit_p} OFFSET ${offset_p}
-        "#
-    );
-
-    let q_pattern = query.q.as_deref().map(|q| format!("%{}%", q));
-
-    let mut count_builder = sqlx::query(&count_sql);
-    let mut data_builder = sqlx::query(&data_sql);
-
-    if let Some(lib_id) = query.library_id {
-        count_builder = count_builder.bind(lib_id);
-        data_builder = data_builder.bind(lib_id);
-    }
-    if let Some(ref pat) = q_pattern {
-        count_builder = count_builder.bind(pat);
-        data_builder = data_builder.bind(pat);
-    }
-    if let Some(ref statuses) = reading_statuses {
-        count_builder = count_builder.bind(statuses.clone());
-        data_builder = data_builder.bind(statuses.clone());
-    }
-
-    data_builder = data_builder.bind(limit).bind(offset);
-
-    let (count_row, rows) = tokio::try_join!(
-        count_builder.fetch_one(&state.pool),
-        data_builder.fetch_all(&state.pool),
-    )?;
-    let total: i64 = count_row.get(0);
-
-    let items: Vec<SeriesItem> = rows
-        .iter()
-        .map(|row| SeriesItem {
-            name: row.get("name"),
-            book_count: row.get("book_count"),
-            books_read_count: row.get("books_read_count"),
-            first_book_id: row.get("first_book_id"),
-            library_id: row.get("library_id"),
-        })
-        .collect();
-
-    Ok(Json(SeriesPage {
-        items,
-        total,
-        page,
-        limit,
-    }))
-}
-
-#[derive(Deserialize, ToSchema)]
-pub struct OngoingQuery {
-    #[schema(value_type = Option<i64>, example = 10)]
-    pub limit: Option<i64>,
-}
-
-/// List ongoing series (partially read, sorted by most recent activity)
-#[utoipa::path(
-    get,
-    path = "/series/ongoing",
-    tag = "books",
-    params(
-        ("limit" = Option<i64>, Query, description = "Max items to return (default 10, max 50)"),
-    ),
-    responses(
-        (status = 200, body = Vec<SeriesItem>),
-        (status = 401, description = "Unauthorized"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn ongoing_series(
-    State(state): State<AppState>,
-    Query(query): Query<OngoingQuery>,
-) -> Result<Json<Vec<SeriesItem>>, ApiError> {
-    let limit = query.limit.unwrap_or(10).clamp(1, 50);
-
-    let rows = sqlx::query(
-        r#"
-        WITH series_stats AS (
-            SELECT
-                COALESCE(NULLIF(b.series, ''), 'unclassified') AS name,
-                COUNT(*) AS book_count,
-                COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') AS books_read_count,
-                MAX(brp.last_read_at) AS last_read_at
-            FROM books b
-            LEFT JOIN book_reading_progress brp ON brp.book_id = b.id
-            GROUP BY COALESCE(NULLIF(b.series, ''), 'unclassified')
-            HAVING (
-                COUNT(brp.book_id) FILTER (WHERE brp.status IN ('read', 'reading')) > 0
-                AND COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') < COUNT(*)
-            )
-        ),
-        first_books AS (
-            SELECT
-                COALESCE(NULLIF(series, ''), 'unclassified') AS name,
-                id,
-                library_id,
-                ROW_NUMBER() OVER (
-                    PARTITION BY COALESCE(NULLIF(series, ''), 'unclassified')
-                    ORDER BY
-                        volume NULLS LAST,
-                        REGEXP_REPLACE(LOWER(title), '[0-9].*$', ''),
-                        COALESCE((REGEXP_MATCH(LOWER(title), '\d+'))[1]::int, 0),
-                        title ASC
-                ) AS rn
-            FROM books
-        )
-        SELECT ss.name, ss.book_count, ss.books_read_count, fb.id AS first_book_id, fb.library_id
-        FROM series_stats ss
-        JOIN first_books fb ON fb.name = ss.name AND fb.rn = 1
-        ORDER BY ss.last_read_at DESC NULLS LAST
-        LIMIT $1
-        "#,
-    )
-    .bind(limit)
-    .fetch_all(&state.pool)
-    .await?;
-
-    let items: Vec<SeriesItem> = rows
-        .iter()
-        .map(|row| SeriesItem {
-            name: row.get("name"),
-            book_count: row.get("book_count"),
-            books_read_count: row.get("books_read_count"),
-            first_book_id: row.get("first_book_id"),
-            library_id: row.get("library_id"),
-        })
-        .collect();
-
-    Ok(Json(items))
-}
-
-/// List next unread book for each ongoing series (sorted by most recent activity)
-#[utoipa::path(
-    get,
-    path = "/books/ongoing",
-    tag = "books",
-    params(
-        ("limit" = Option<i64>, Query, description = "Max items to return (default 10, max 50)"),
-    ),
-    responses(
-        (status = 200, body = Vec<BookItem>),
-        (status = 401, description = "Unauthorized"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn ongoing_books(
-    State(state): State<AppState>,
-    Query(query): Query<OngoingQuery>,
-) -> Result<Json<Vec<BookItem>>, ApiError> {
-    let limit = query.limit.unwrap_or(10).clamp(1, 50);
-
-    let rows = sqlx::query(
-        r#"
-        WITH ongoing_series AS (
-            SELECT
-                COALESCE(NULLIF(b.series, ''), 'unclassified') AS name,
-                MAX(brp.last_read_at) AS series_last_read_at
-            FROM books b
-            LEFT JOIN book_reading_progress brp ON brp.book_id = b.id
-            GROUP BY COALESCE(NULLIF(b.series, ''), 'unclassified')
-            HAVING (
-                COUNT(brp.book_id) FILTER (WHERE brp.status IN ('read', 'reading')) > 0
-                AND COUNT(brp.book_id) FILTER (WHERE brp.status = 'read') < COUNT(*)
-            )
-        ),
-        next_books AS (
-            SELECT
-                b.id, b.library_id, b.kind, b.format, b.title, b.author, b.authors, b.series, b.volume,
-                b.language, b.page_count, b.thumbnail_path, b.updated_at,
-                COALESCE(brp.status, 'unread') AS reading_status,
-                brp.current_page AS reading_current_page,
-                brp.last_read_at AS reading_last_read_at,
-                os.series_last_read_at,
-                ROW_NUMBER() OVER (
-                    PARTITION BY COALESCE(NULLIF(b.series, ''), 'unclassified')
-                    ORDER BY b.volume NULLS LAST, b.title
-                ) AS rn
-            FROM books b
-            JOIN ongoing_series os ON COALESCE(NULLIF(b.series, ''), 'unclassified') = os.name
-            LEFT JOIN book_reading_progress brp ON brp.book_id = b.id
-            WHERE COALESCE(brp.status, 'unread') != 'read'
-        )
-        SELECT id, library_id, kind, format, title, author, authors, series, volume, language, page_count,
-               thumbnail_path, updated_at, reading_status, reading_current_page, reading_last_read_at
-        FROM next_books
-        WHERE rn = 1
-        ORDER BY series_last_read_at DESC NULLS LAST
-        LIMIT $1
-        "#,
-    )
-    .bind(limit)
-    .fetch_all(&state.pool)
-    .await?;
-
-    let items: Vec<BookItem> = rows
-        .iter()
-        .map(|row| {
-            let thumbnail_path: Option<String> = row.get("thumbnail_path");
-            BookItem {
-                id: row.get("id"),
-                library_id: row.get("library_id"),
-                kind: row.get("kind"),
-                format: row.get("format"),
-                title: row.get("title"),
-                author: row.get("author"),
-                authors: row.get::<Vec<String>, _>("authors"),
-                series: row.get("series"),
-                volume: row.get("volume"),
-                language: row.get("language"),
-                page_count: row.get("page_count"),
-                thumbnail_url: thumbnail_path.map(|_| format!("/books/{}/thumbnail", row.get::<Uuid, _>("id"))),
-                updated_at: row.get("updated_at"),
-                reading_status: row.get("reading_status"),
-                reading_current_page: row.get("reading_current_page"),
-                reading_last_read_at: row.get("reading_last_read_at"),
-            }
-        })
-        .collect();
-
-    Ok(Json(items))
-}
-
-fn remap_libraries_path(path: &str) -> String {
+pub(crate) fn remap_libraries_path(path: &str) -> String {
    if let Ok(root) = std::env::var("LIBRARIES_ROOT_PATH") {
        if path.starts_with("/libraries/") {
            return path.replacen("/libraries", &root, 1);
@@ -861,6 +366,8 @@ fn unmap_libraries_path(path: &str) -> String {
    path.to_string()
 }

+// ─── Convert CBR → CBZ ───────────────────────────────────────────────────────
+
 /// Enqueue a CBR → CBZ conversion job for a single book
 #[utoipa::path(
    post,
@@ -961,6 +468,12 @@ pub struct UpdateBookRequest {
    pub series: Option<String>,
    pub volume: Option<i32>,
    pub language: Option<String>,
+    pub summary: Option<String>,
+    pub isbn: Option<String>,
+    pub publish_date: Option<String>,
+    /// Fields locked from external metadata sync
+    #[serde(default)]
+    pub locked_fields: Option<serde_json::Value>,
 }

 /// Update metadata for a specific book
@@ -996,12 +509,18 @@ pub async fn update_book(
    let series = body.series.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
    let language = body.language.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);

+    let summary = body.summary.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
+    let isbn = body.isbn.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
+    let publish_date = body.publish_date.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
+    let locked_fields = body.locked_fields.clone().unwrap_or(serde_json::json!({}));
    let row = sqlx::query(
        r#"
        UPDATE books
-        SET title = $2, author = $3, authors = $4, series = $5, volume = $6, language = $7, updated_at = NOW()
+        SET title = $2, author = $3, authors = $4, series = $5, volume = $6, language = $7,
+            summary = $8, isbn = $9, publish_date = $10, locked_fields = $11, updated_at = NOW()
        WHERE id = $1
        RETURNING id, library_id, kind, title, author, authors, series, volume, language, page_count, thumbnail_path,
+                  summary, isbn, publish_date,
                  COALESCE((SELECT status FROM book_reading_progress WHERE book_id = $1), 'unread') AS reading_status,
                  (SELECT current_page FROM book_reading_progress WHERE book_id = $1) AS reading_current_page,
                  (SELECT last_read_at FROM book_reading_progress WHERE book_id = $1) AS reading_last_read_at
@@ -1014,6 +533,10 @@ pub async fn update_book(
    .bind(&series)
    .bind(body.volume)
    .bind(&language)
+    .bind(&summary)
+    .bind(&isbn)
+    .bind(&publish_date)
+    .bind(&locked_fields)
    .fetch_optional(&state.pool)
    .await?;

@@ -1038,216 +561,14 @@ pub async fn update_book(
        reading_status: row.get("reading_status"),
        reading_current_page: row.get("reading_current_page"),
        reading_last_read_at: row.get("reading_last_read_at"),
+        summary: row.get("summary"),
+        isbn: row.get("isbn"),
+        publish_date: row.get("publish_date"),
+        locked_fields: Some(locked_fields),
    }))
 }

-#[derive(Serialize, ToSchema)]
-pub struct SeriesMetadata {
-    /// Authors of the series (series-level metadata, distinct from per-book author field)
-    pub authors: Vec<String>,
-    pub description: Option<String>,
-    pub publishers: Vec<String>,
-    pub start_year: Option<i32>,
-    /// Convenience: author from first book (for pre-filling the per-book apply section)
-    pub book_author: Option<String>,
-    pub book_language: Option<String>,
-}
-
-/// Get metadata for a specific series
-#[utoipa::path(
-    get,
-    path = "/libraries/{library_id}/series/{name}/metadata",
-    tag = "books",
-    params(
-        ("library_id" = String, Path, description = "Library UUID"),
-        ("name" = String, Path, description = "Series name"),
-    ),
-    responses(
-        (status = 200, body = SeriesMetadata),
-        (status = 401, description = "Unauthorized"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn get_series_metadata(
-    State(state): State<AppState>,
-    Path((library_id, name)): Path<(Uuid, String)>,
-) -> Result<Json<SeriesMetadata>, ApiError> {
-    // author/language from first book of series
-    let books_row = if name == "unclassified" {
-        sqlx::query("SELECT author, language FROM books WHERE library_id = $1 AND (series IS NULL OR series = '') LIMIT 1")
-            .bind(library_id)
-            .fetch_optional(&state.pool)
-            .await?
-    } else {
-        sqlx::query("SELECT author, language FROM books WHERE library_id = $1 AND series = $2 LIMIT 1")
-            .bind(library_id)
-            .bind(&name)
-            .fetch_optional(&state.pool)
-            .await?
-    };
-
-    let meta_row = sqlx::query(
-        "SELECT authors, description, publishers, start_year FROM series_metadata WHERE library_id = $1 AND name = $2"
-    )
-    .bind(library_id)
-    .bind(&name)
-    .fetch_optional(&state.pool)
-    .await?;
-
-    Ok(Json(SeriesMetadata {
-        authors: meta_row.as_ref().map(|r| r.get::<Vec<String>, _>("authors")).unwrap_or_default(),
-        description: meta_row.as_ref().and_then(|r| r.get("description")),
-        publishers: meta_row.as_ref().map(|r| r.get::<Vec<String>, _>("publishers")).unwrap_or_default(),
-        start_year: meta_row.as_ref().and_then(|r| r.get("start_year")),
-        book_author: books_row.as_ref().and_then(|r| r.get("author")),
-        book_language: books_row.as_ref().and_then(|r| r.get("language")),
-    }))
-}
-
-/// `author` and `language` are wrapped in an extra Option so we can distinguish
-/// "absent from JSON" (keep books unchanged) from "present as null" (clear the field).
-#[derive(Deserialize, ToSchema)]
-pub struct UpdateSeriesRequest {
-    pub new_name: String,
-    /// Series-level authors list (stored in series_metadata)
-    #[serde(default)]
-    pub authors: Vec<String>,
-    /// Per-book author propagation: absent = keep books unchanged, present = overwrite all books
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub author: Option<Option<String>>,
-    /// Per-book language propagation: absent = keep books unchanged, present = overwrite all books
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub language: Option<Option<String>>,
-    pub description: Option<String>,
-    #[serde(default)]
-    pub publishers: Vec<String>,
-    pub start_year: Option<i32>,
-}
-
-#[derive(Serialize, ToSchema)]
-pub struct UpdateSeriesResponse {
-    pub updated: u64,
-}
-
-/// Update metadata for all books in a series
-#[utoipa::path(
-    patch,
-    path = "/libraries/{library_id}/series/{name}",
-    tag = "books",
-    params(
-        ("library_id" = String, Path, description = "Library UUID"),
-        ("name" = String, Path, description = "Series name (use 'unclassified' for books without series)"),
-    ),
-    request_body = UpdateSeriesRequest,
-    responses(
-        (status = 200, body = UpdateSeriesResponse),
-        (status = 400, description = "Invalid request"),
-        (status = 401, description = "Unauthorized"),
-        (status = 403, description = "Forbidden - Admin scope required"),
-    ),
-    security(("Bearer" = []))
-)]
-pub async fn update_series(
-    State(state): State<AppState>,
-    Path((library_id, name)): Path<(Uuid, String)>,
-    Json(body): Json<UpdateSeriesRequest>,
-) -> Result<Json<UpdateSeriesResponse>, ApiError> {
-    let new_name = body.new_name.trim().to_string();
-    if new_name.is_empty() {
-        return Err(ApiError::bad_request("series name cannot be empty"));
-    }
-    // author/language: None = absent (keep books unchanged), Some(v) = apply to all books
-    let apply_author = body.author.is_some();
-    let author_value = body.author.flatten().as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
-    let apply_language = body.language.is_some();
-    let language_value = body.language.flatten().as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
-    let description = body.description.as_deref().map(str::trim).filter(|s| !s.is_empty()).map(str::to_string);
-    let publishers: Vec<String> = body.publishers.iter()
-        .map(|p| p.trim().to_string())
-        .filter(|p| !p.is_empty())
-        .collect();
-    let new_series_value: Option<String> = if new_name == "unclassified" { None } else { Some(new_name.clone()) };
-
-    // 1. Update books: always update series name; author/language only if opted-in
-    // $1=library_id, $2=new_series_value, $3=apply_author, $4=author_value,
-    // $5=apply_language, $6=language_value, [$7=old_name]
-    let result = if name == "unclassified" {
-        sqlx::query(
-            "UPDATE books \
-             SET series = $2, \
-                 author = CASE WHEN $3 THEN $4 ELSE author END, \
-                 language = CASE WHEN $5 THEN $6 ELSE language END, \
-                 updated_at = NOW() \
-             WHERE library_id = $1 AND (series IS NULL OR series = '')"
-        )
-        .bind(library_id)
-        .bind(&new_series_value)
-        .bind(apply_author)
-        .bind(&author_value)
-        .bind(apply_language)
-        .bind(&language_value)
-        .execute(&state.pool)
-        .await?
-    } else {
-        sqlx::query(
-            "UPDATE books \
-             SET series = $2, \
-                 author = CASE WHEN $3 THEN $4 ELSE author END, \
-                 language = CASE WHEN $5 THEN $6 ELSE language END, \
-                 updated_at = NOW() \
-             WHERE library_id = $1 AND series = $7"
-        )
-        .bind(library_id)
-        .bind(&new_series_value)
-        .bind(apply_author)
-        .bind(&author_value)
-        .bind(apply_language)
-        .bind(&language_value)
-        .bind(&name)
-        .execute(&state.pool)
-        .await?
-    };
-
-    // 2. Upsert series_metadata (keyed by new_name)
-    let meta_name = new_series_value.as_deref().unwrap_or("unclassified");
-    let authors: Vec<String> = body.authors.iter()
-        .map(|a| a.trim().to_string())
-        .filter(|a| !a.is_empty())
-        .collect();
-    sqlx::query(
-        r#"
-        INSERT INTO series_metadata (library_id, name, authors, description, publishers, start_year, updated_at)
-        VALUES ($1, $2, $3, $4, $5, $6, NOW())
-        ON CONFLICT (library_id, name) DO UPDATE
-          SET authors     = EXCLUDED.authors,
-              description = EXCLUDED.description,
-              publishers  = EXCLUDED.publishers,
-              start_year  = EXCLUDED.start_year,
-              updated_at  = NOW()
-        "#
-    )
-    .bind(library_id)
-    .bind(meta_name)
-    .bind(&authors)
-    .bind(&description)
-    .bind(&publishers)
-    .bind(body.start_year)
-    .execute(&state.pool)
-    .await?;
-
-    // 3. If renamed, move series_metadata from old name to new name
-    if name != "unclassified" && new_name != name {
-        sqlx::query(
-            "DELETE FROM series_metadata WHERE library_id = $1 AND name = $2"
-        )
-        .bind(library_id)
-        .bind(&name)
-        .execute(&state.pool)
-        .await?;
-    }
-
-    Ok(Json(UpdateSeriesResponse { updated: result.rows_affected() }))
-}
+// ─── Thumbnail ────────────────────────────────────────────────────────────────

 use axum::{
    body::Body,
@@ -1310,12 +631,17 @@ pub async fn get_thumbnail(
        crate::pages::render_book_page_1(&state, book_id, 300, 80).await?
    };

+    let etag_value = format!("\"{}_{:x}\"", book_id, data.len());
+
    let mut headers = HeaderMap::new();
    headers.insert(header::CONTENT_TYPE, HeaderValue::from_static(content_type));
    headers.insert(
        header::CACHE_CONTROL,
        HeaderValue::from_static("public, max-age=31536000, immutable"),
    );
+    if let Ok(v) = HeaderValue::from_str(&etag_value) {
+        headers.insert(header::ETAG, v);
+    }

    Ok((StatusCode::OK, headers, Body::from(data)))
 }
--- a/apps/api/src/index_jobs.rs
+++ b/apps/api/src/index_jobs.rs
@@ -16,6 +16,10 @@ pub struct RebuildRequest {
    pub library_id: Option<Uuid>,
    #[schema(value_type = Option<bool>, example = false)]
    pub full: Option<bool>,
+    /// Deep rescan: clears directory mtimes to force re-walking all directories,
+    /// discovering newly supported formats without deleting existing data.
+    #[schema(value_type = Option<bool>, example = false)]
+    pub rescan: Option<bool>,
 }

 #[derive(Serialize, ToSchema)]
@@ -117,7 +121,8 @@ pub async fn enqueue_rebuild(
 ) -> Result<Json<IndexJobResponse>, ApiError> {
    let library_id = payload.as_ref().and_then(|p| p.0.library_id);
    let is_full = payload.as_ref().and_then(|p| p.0.full).unwrap_or(false);
-    let job_type = if is_full { "full_rebuild" } else { "rebuild" };
+    let is_rescan = payload.as_ref().and_then(|p| p.0.rescan).unwrap_or(false);
+    let job_type = if is_full { "full_rebuild" } else if is_rescan { "rescan" } else { "rebuild" };
    let id = Uuid::new_v4();

    sqlx::query(
--- a/apps/api/src/komga.rs
+++ b/apps/api/src/komga.rs
@@ -154,10 +154,11 @@ pub async fn sync_komga_read_books(
    .fetch_all(&state.pool)
    .await?;

+    type BookEntry = (Uuid, String, String);
    // Primary: (series_lower, title_lower) -> Vec<(Uuid, title, series)>
-    let mut primary_map: HashMap<(String, String), Vec<(Uuid, String, String)>> = HashMap::new();
+    let mut primary_map: HashMap<(String, String), Vec<BookEntry>> = HashMap::new();
    // Secondary: title_lower -> Vec<(Uuid, title, series)>
-    let mut secondary_map: HashMap<String, Vec<(Uuid, String, String)>> = HashMap::new();
+    let mut secondary_map: HashMap<String, Vec<BookEntry>> = HashMap::new();

    for row in &rows {
        let id: Uuid = row.get("id");
--- a/apps/api/src/libraries.rs
+++ b/apps/api/src/libraries.rs
@@ -21,6 +21,15 @@ pub struct LibraryResponse {
    #[schema(value_type = Option<String>)]
    pub next_scan_at: Option<chrono::DateTime<chrono::Utc>>,
    pub watcher_enabled: bool,
+    pub metadata_provider: Option<String>,
+    pub fallback_metadata_provider: Option<String>,
+    pub metadata_refresh_mode: String,
+    #[schema(value_type = Option<String>)]
+    pub next_metadata_refresh_at: Option<chrono::DateTime<chrono::Utc>>,
+    pub series_count: i64,
+    /// First book IDs from up to 5 distinct series (for thumbnail fan display)
+    #[schema(value_type = Vec<String>)]
+    pub thumbnail_book_ids: Vec<Uuid>,
 }

 #[derive(Deserialize, ToSchema)]
@@ -39,14 +48,27 @@ pub struct CreateLibraryRequest {
    responses(
        (status = 200, body = Vec<LibraryResponse>),
        (status = 401, description = "Unauthorized"),
-        (status = 403, description = "Forbidden - Admin scope required"),
    ),
    security(("Bearer" = []))
 )]
 pub async fn list_libraries(State(state): State<AppState>) -> Result<Json<Vec<LibraryResponse>>, ApiError> {
    let rows = sqlx::query(
-        "SELECT l.id, l.name, l.root_path, l.enabled, l.monitor_enabled, l.scan_mode, l.next_scan_at, l.watcher_enabled,
-                (SELECT COUNT(*) FROM books b WHERE b.library_id = l.id) as book_count 
+        "SELECT l.id, l.name, l.root_path, l.enabled, l.monitor_enabled, l.scan_mode, l.next_scan_at, l.watcher_enabled, l.metadata_provider, l.fallback_metadata_provider, l.metadata_refresh_mode, l.next_metadata_refresh_at,
+                (SELECT COUNT(*) FROM books b WHERE b.library_id = l.id) as book_count,
+                (SELECT COUNT(DISTINCT COALESCE(NULLIF(b.series, ''), 'unclassified')) FROM books b WHERE b.library_id = l.id) as series_count,
+                COALESCE((
+                    SELECT ARRAY_AGG(first_id ORDER BY series_name)
+                    FROM (
+                        SELECT DISTINCT ON (COALESCE(NULLIF(b.series, ''), 'unclassified'))
+                            COALESCE(NULLIF(b.series, ''), 'unclassified') as series_name,
+                            b.id as first_id
+                        FROM books b
+                        WHERE b.library_id = l.id
+                        ORDER BY COALESCE(NULLIF(b.series, ''), 'unclassified'),
+                            b.volume NULLS LAST, b.title ASC
+                        LIMIT 5
+                    ) sub
+                ), ARRAY[]::uuid[]) as thumbnail_book_ids
         FROM libraries l ORDER BY l.created_at DESC"
    )
        .fetch_all(&state.pool)
@@ -60,10 +82,16 @@ pub async fn list_libraries(State(state): State<AppState>) -> Result<Json<Vec<Li
            root_path: row.get("root_path"),
            enabled: row.get("enabled"),
            book_count: row.get("book_count"),
+            series_count: row.get("series_count"),
            monitor_enabled: row.get("monitor_enabled"),
            scan_mode: row.get("scan_mode"),
            next_scan_at: row.get("next_scan_at"),
            watcher_enabled: row.get("watcher_enabled"),
+            metadata_provider: row.get("metadata_provider"),
+            fallback_metadata_provider: row.get("fallback_metadata_provider"),
+            metadata_refresh_mode: row.get("metadata_refresh_mode"),
+            next_metadata_refresh_at: row.get("next_metadata_refresh_at"),
+            thumbnail_book_ids: row.get("thumbnail_book_ids"),
        })
        .collect();

@@ -111,10 +139,16 @@ pub async fn create_library(
        root_path,
        enabled: true,
        book_count: 0,
+        series_count: 0,
        monitor_enabled: false,
        scan_mode: "manual".to_string(),
        next_scan_at: None,
        watcher_enabled: false,
+        metadata_provider: None,
+        fallback_metadata_provider: None,
+        metadata_refresh_mode: "manual".to_string(),
+        next_metadata_refresh_at: None,
+        thumbnail_book_ids: vec![],
    }))
 }

@@ -186,7 +220,6 @@ use crate::index_jobs::{IndexJobResponse, RebuildRequest};
        (status = 200, body = IndexJobResponse),
        (status = 404, description = "Library not found"),
        (status = 401, description = "Unauthorized"),
-        (status = 403, description = "Forbidden - Admin scope required"),
    ),
    security(("Bearer" = []))
 )]
@@ -206,7 +239,8 @@ pub async fn scan_library(
    }

    let is_full = payload.as_ref().and_then(|p| p.full).unwrap_or(false);
-    let job_type = if is_full { "full_rebuild" } else { "rebuild" };
+    let is_rescan = payload.as_ref().and_then(|p| p.rescan).unwrap_or(false);
+    let job_type = if is_full { "full_rebuild" } else if is_rescan { "rescan" } else { "rebuild" };

    // Create indexing job for this library
    let job_id = Uuid::new_v4();
@@ -235,6 +269,8 @@ pub struct UpdateMonitoringRequest {
    #[schema(value_type = String, example = "hourly")]
    pub scan_mode: String, // 'manual', 'hourly', 'daily', 'weekly'
    pub watcher_enabled: Option<bool>,
+    #[schema(value_type = Option<String>, example = "daily")]
+    pub metadata_refresh_mode: Option<String>, // 'manual', 'hourly', 'daily', 'weekly'
 }

 /// Update monitoring settings for a library
@@ -265,6 +301,12 @@ pub async fn update_monitoring(
        return Err(ApiError::bad_request("scan_mode must be one of: manual, hourly, daily, weekly"));
    }

+    // Validate metadata_refresh_mode
+    let metadata_refresh_mode = input.metadata_refresh_mode.as_deref().unwrap_or("manual");
+    if !valid_modes.contains(&metadata_refresh_mode) {
+        return Err(ApiError::bad_request("metadata_refresh_mode must be one of: manual, hourly, daily, weekly"));
+    }
+
    // Calculate next_scan_at if monitoring is enabled
    let next_scan_at = if input.monitor_enabled {
        let interval_minutes = match input.scan_mode.as_str() {
@@ -278,16 +320,31 @@ pub async fn update_monitoring(
        None
    };

+    // Calculate next_metadata_refresh_at
+    let next_metadata_refresh_at = if metadata_refresh_mode != "manual" {
+        let interval_minutes = match metadata_refresh_mode {
+            "hourly" => 60,
+            "daily" => 1440,
+            "weekly" => 10080,
+            _ => 1440,
+        };
+        Some(chrono::Utc::now() + chrono::Duration::minutes(interval_minutes))
+    } else {
+        None
+    };
+
    let watcher_enabled = input.watcher_enabled.unwrap_or(false);

    let result = sqlx::query(
-        "UPDATE libraries SET monitor_enabled = $2, scan_mode = $3, next_scan_at = $4, watcher_enabled = $5 WHERE id = $1 RETURNING id, name, root_path, enabled, monitor_enabled, scan_mode, next_scan_at, watcher_enabled"
+        "UPDATE libraries SET monitor_enabled = $2, scan_mode = $3, next_scan_at = $4, watcher_enabled = $5, metadata_refresh_mode = $6, next_metadata_refresh_at = $7 WHERE id = $1 RETURNING id, name, root_path, enabled, monitor_enabled, scan_mode, next_scan_at, watcher_enabled, metadata_provider, fallback_metadata_provider, metadata_refresh_mode, next_metadata_refresh_at"
    )
    .bind(library_id)
    .bind(input.monitor_enabled)
    .bind(input.scan_mode)
    .bind(next_scan_at)
    .bind(watcher_enabled)
+    .bind(metadata_refresh_mode)
+    .bind(next_metadata_refresh_at)
    .fetch_optional(&state.pool)
    .await?;

@@ -300,15 +357,121 @@ pub async fn update_monitoring(
        .fetch_one(&state.pool)
        .await?;

+    let series_count: i64 = sqlx::query_scalar("SELECT COUNT(DISTINCT COALESCE(NULLIF(series, ''), 'unclassified')) FROM books WHERE library_id = $1")
+        .bind(library_id)
+        .fetch_one(&state.pool)
+        .await?;
+
+    let thumbnail_book_ids: Vec<Uuid> = sqlx::query_scalar(
+        "SELECT b.id FROM books b
+         WHERE b.library_id = $1
+         ORDER BY COALESCE(NULLIF(b.series, ''), 'unclassified'), b.volume NULLS LAST, b.title ASC
+         LIMIT 5"
+    )
+    .bind(library_id)
+    .fetch_all(&state.pool)
+    .await
+    .unwrap_or_default();
+
    Ok(Json(LibraryResponse {
        id: row.get("id"),
        name: row.get("name"),
        root_path: row.get("root_path"),
        enabled: row.get("enabled"),
        book_count,
+        series_count,
        monitor_enabled: row.get("monitor_enabled"),
        scan_mode: row.get("scan_mode"),
        next_scan_at: row.get("next_scan_at"),
        watcher_enabled: row.get("watcher_enabled"),
+        metadata_provider: row.get("metadata_provider"),
+        fallback_metadata_provider: row.get("fallback_metadata_provider"),
+        metadata_refresh_mode: row.get("metadata_refresh_mode"),
+        next_metadata_refresh_at: row.get("next_metadata_refresh_at"),
+        thumbnail_book_ids,
+    }))
+}
+
+#[derive(Deserialize, ToSchema)]
+pub struct UpdateMetadataProviderRequest {
+    pub metadata_provider: Option<String>,
+    pub fallback_metadata_provider: Option<String>,
+}
+
+/// Update the metadata provider for a library
+#[utoipa::path(
+    patch,
+    path = "/libraries/{id}/metadata-provider",
+    tag = "libraries",
+    params(
+        ("id" = String, Path, description = "Library UUID"),
+    ),
+    request_body = UpdateMetadataProviderRequest,
+    responses(
+        (status = 200, body = LibraryResponse),
+        (status = 404, description = "Library not found"),
+        (status = 401, description = "Unauthorized"),
+        (status = 403, description = "Forbidden - Admin scope required"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn update_metadata_provider(
+    State(state): State<AppState>,
+    AxumPath(library_id): AxumPath<Uuid>,
+    Json(input): Json<UpdateMetadataProviderRequest>,
+) -> Result<Json<LibraryResponse>, ApiError> {
+    let provider = input.metadata_provider.as_deref().filter(|s| !s.is_empty());
+    let fallback = input.fallback_metadata_provider.as_deref().filter(|s| !s.is_empty());
+
+    let result = sqlx::query(
+        "UPDATE libraries SET metadata_provider = $2, fallback_metadata_provider = $3 WHERE id = $1 RETURNING id, name, root_path, enabled, monitor_enabled, scan_mode, next_scan_at, watcher_enabled, metadata_provider, fallback_metadata_provider, metadata_refresh_mode, next_metadata_refresh_at"
+    )
+    .bind(library_id)
+    .bind(provider)
+    .bind(fallback)
+    .fetch_optional(&state.pool)
+    .await?;
+
+    let Some(row) = result else {
+        return Err(ApiError::not_found("library not found"));
+    };
+
+    let book_count: i64 = sqlx::query_scalar("SELECT COUNT(*) FROM books WHERE library_id = $1")
+        .bind(library_id)
+        .fetch_one(&state.pool)
+        .await?;
+
+    let series_count: i64 = sqlx::query_scalar("SELECT COUNT(DISTINCT COALESCE(NULLIF(series, ''), 'unclassified')) FROM books WHERE library_id = $1")
+        .bind(library_id)
+        .fetch_one(&state.pool)
+        .await?;
+
+    let thumbnail_book_ids: Vec<Uuid> = sqlx::query_scalar(
+        "SELECT b.id FROM books b
+         WHERE b.library_id = $1
+         ORDER BY COALESCE(NULLIF(b.series, ''), 'unclassified'), b.volume NULLS LAST, b.title ASC
+         LIMIT 5"
+    )
+    .bind(library_id)
+    .fetch_all(&state.pool)
+    .await
+    .unwrap_or_default();
+
+    Ok(Json(LibraryResponse {
+        id: row.get("id"),
+        name: row.get("name"),
+        root_path: row.get("root_path"),
+        enabled: row.get("enabled"),
+        book_count,
+        series_count,
+        monitor_enabled: row.get("monitor_enabled"),
+        scan_mode: row.get("scan_mode"),
+        next_scan_at: row.get("next_scan_at"),
+        watcher_enabled: row.get("watcher_enabled"),
+        metadata_provider: row.get("metadata_provider"),
+        fallback_metadata_provider: row.get("fallback_metadata_provider"),
+        metadata_refresh_mode: row.get("metadata_refresh_mode"),
+        next_metadata_refresh_at: row.get("next_metadata_refresh_at"),
+        thumbnail_book_ids,
    }))
 }
--- a/apps/api/src/main.rs
+++ b/apps/api/src/main.rs
@@ -1,18 +1,27 @@
 mod auth;
+mod authors;
 mod books;
 mod error;
 mod handlers;
 mod index_jobs;
 mod komga;
 mod libraries;
+mod metadata;
+mod metadata_batch;
+mod metadata_refresh;
+mod metadata_providers;
 mod api_middleware;
 mod openapi;
 mod pages;
+mod prowlarr;
+mod qbittorrent;
 mod reading_progress;
 mod search;
+mod series;
 mod settings;
 mod state;
 mod stats;
+mod telegram;
 mod thumbnails;
 mod tokens;

@@ -79,13 +88,13 @@ async fn main() -> anyhow::Result<()> {
    };

    let admin_routes = Router::new()
-        .route("/libraries", get(libraries::list_libraries).post(libraries::create_library))
+        .route("/libraries", axum::routing::post(libraries::create_library))
        .route("/libraries/:id", delete(libraries::delete_library))
-        .route("/libraries/:id/scan", axum::routing::post(libraries::scan_library))
        .route("/libraries/:id/monitoring", axum::routing::patch(libraries::update_monitoring))
+        .route("/libraries/:id/metadata-provider", axum::routing::patch(libraries::update_metadata_provider))
        .route("/books/:id", axum::routing::patch(books::update_book))
        .route("/books/:id/convert", axum::routing::post(books::convert_book))
-        .route("/libraries/:library_id/series/:name", axum::routing::patch(books::update_series))
+        .route("/libraries/:library_id/series/:name", axum::routing::patch(series::update_series))
        .route("/index/rebuild", axum::routing::post(index_jobs::enqueue_rebuild))
        .route("/index/thumbnails/rebuild", axum::routing::post(thumbnails::start_thumbnails_rebuild))
        .route("/index/thumbnails/regenerate", axum::routing::post(thumbnails::start_thumbnails_regenerate))
@@ -99,9 +108,26 @@ async fn main() -> anyhow::Result<()> {
        .route("/admin/tokens", get(tokens::list_tokens).post(tokens::create_token))
        .route("/admin/tokens/:id", delete(tokens::revoke_token))
        .route("/admin/tokens/:id/delete", axum::routing::post(tokens::delete_token))
+        .route("/prowlarr/search", axum::routing::post(prowlarr::search_prowlarr))
+        .route("/prowlarr/test", get(prowlarr::test_prowlarr))
+        .route("/qbittorrent/add", axum::routing::post(qbittorrent::add_torrent))
+        .route("/qbittorrent/test", get(qbittorrent::test_qbittorrent))
+        .route("/telegram/test", get(telegram::test_telegram))
        .route("/komga/sync", axum::routing::post(komga::sync_komga_read_books))
        .route("/komga/reports", get(komga::list_sync_reports))
        .route("/komga/reports/:id", get(komga::get_sync_report))
+        .route("/metadata/search", axum::routing::post(metadata::search_metadata))
+        .route("/metadata/match", axum::routing::post(metadata::create_metadata_match))
+        .route("/metadata/approve/:id", axum::routing::post(metadata::approve_metadata))
+        .route("/metadata/reject/:id", axum::routing::post(metadata::reject_metadata))
+        .route("/metadata/links", get(metadata::get_metadata_links))
+        .route("/metadata/missing/:id", get(metadata::get_missing_books))
+        .route("/metadata/links/:id", delete(metadata::delete_metadata_link))
+        .route("/metadata/batch", axum::routing::post(metadata_batch::start_batch))
+        .route("/metadata/batch/:id/report", get(metadata_batch::get_batch_report))
+        .route("/metadata/batch/:id/results", get(metadata_batch::get_batch_results))
+        .route("/metadata/refresh", axum::routing::post(metadata_refresh::start_refresh))
+        .route("/metadata/refresh/:id/report", get(metadata_refresh::get_refresh_report))
        .merge(settings::settings_routes())
        .route_layer(middleware::from_fn_with_state(
            state.clone(),
@@ -109,17 +135,22 @@ async fn main() -> anyhow::Result<()> {
        ));

    let read_routes = Router::new()
+        .route("/libraries", get(libraries::list_libraries))
+        .route("/libraries/:id/scan", axum::routing::post(libraries::scan_library))
        .route("/books", get(books::list_books))
-        .route("/books/ongoing", get(books::ongoing_books))
+        .route("/books/ongoing", get(series::ongoing_books))
        .route("/books/:id", get(books::get_book))
        .route("/books/:id/thumbnail", get(books::get_thumbnail))
        .route("/books/:id/pages/:n", get(pages::get_page))
        .route("/books/:id/progress", get(reading_progress::get_reading_progress).patch(reading_progress::update_reading_progress))
-        .route("/libraries/:library_id/series", get(books::list_series))
-        .route("/libraries/:library_id/series/:name/metadata", get(books::get_series_metadata))
-        .route("/series", get(books::list_all_series))
-        .route("/series/ongoing", get(books::ongoing_series))
+        .route("/libraries/:library_id/series", get(series::list_series))
+        .route("/libraries/:library_id/series/:name/metadata", get(series::get_series_metadata))
+        .route("/series", get(series::list_all_series))
+        .route("/series/ongoing", get(series::ongoing_series))
+        .route("/series/statuses", get(series::series_statuses))
+        .route("/series/provider-statuses", get(series::provider_statuses))
        .route("/series/mark-read", axum::routing::post(reading_progress::mark_series_read))
+        .route("/authors", get(authors::list_authors))
        .route("/stats", get(stats::get_stats))
        .route("/search", get(search::search_books))
        .route_layer(middleware::from_fn_with_state(state.clone(), api_middleware::read_rate_limit))
--- a/apps/api/src/metadata.rs
+++ b/apps/api/src/metadata.rs
--- a/apps/api/src/metadata_batch.rs
+++ b/apps/api/src/metadata_batch.rs
--- a/apps/api/src/metadata_providers/anilist.rs
+++ b/apps/api/src/metadata_providers/anilist.rs
@@ -0,0 +1,342 @@
+use super::{BookCandidate, MetadataProvider, ProviderConfig, SeriesCandidate};
+
+pub struct AniListProvider;
+
+impl MetadataProvider for AniListProvider {
+    fn name(&self) -> &str {
+        "anilist"
+    }
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    > {
+        let query = query.to_string();
+        let config = config.clone();
+        Box::pin(async move { search_series_impl(&query, &config).await })
+    }
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    > {
+        let external_id = external_id.to_string();
+        let config = config.clone();
+        Box::pin(async move { get_series_books_impl(&external_id, &config).await })
+    }
+}
+
+const SEARCH_QUERY: &str = r#"
+query ($search: String) {
+  Page(perPage: 20) {
+    media(search: $search, type: MANGA, sort: SEARCH_MATCH) {
+      id
+      title { romaji english native }
+      description(asHtml: false)
+      coverImage { large medium }
+      startDate { year }
+      status
+      volumes
+      chapters
+      staff { edges { node { name { full } } role } }
+      siteUrl
+      genres
+    }
+  }
+}
+"#;
+
+const DETAIL_QUERY: &str = r#"
+query ($id: Int) {
+  Media(id: $id, type: MANGA) {
+    id
+    title { romaji english native }
+    description(asHtml: false)
+    coverImage { large medium }
+    startDate { year }
+    status
+    volumes
+    chapters
+    staff { edges { node { name { full } } role } }
+    siteUrl
+    genres
+  }
+}
+"#;
+
+async fn graphql_request(
+    client: &reqwest::Client,
+    query: &str,
+    variables: serde_json::Value,
+) -> Result<serde_json::Value, String> {
+    let resp = client
+        .post("https://graphql.anilist.co")
+        .header("Content-Type", "application/json")
+        .json(&serde_json::json!({
+            "query": query,
+            "variables": variables,
+        }))
+        .send()
+        .await
+        .map_err(|e| format!("AniList request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("AniList returned {status}: {text}"));
+    }
+
+    resp.json()
+        .await
+        .map_err(|e| format!("Failed to parse AniList response: {e}"))
+}
+
+async fn search_series_impl(
+    query: &str,
+    _config: &ProviderConfig,
+) -> Result<Vec<SeriesCandidate>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    let data = graphql_request(
+        &client,
+        SEARCH_QUERY,
+        serde_json::json!({ "search": query }),
+    )
+    .await?;
+
+    let media = match data
+        .get("data")
+        .and_then(|d| d.get("Page"))
+        .and_then(|p| p.get("media"))
+        .and_then(|m| m.as_array())
+    {
+        Some(media) => media,
+        None => return Ok(vec![]),
+    };
+
+    let query_lower = query.to_lowercase();
+
+    let mut candidates: Vec<SeriesCandidate> = media
+        .iter()
+        .filter_map(|m| {
+            let id = m.get("id").and_then(|id| id.as_i64())?;
+            let title_obj = m.get("title")?;
+            let title = title_obj
+                .get("english")
+                .and_then(|t| t.as_str())
+                .or_else(|| title_obj.get("romaji").and_then(|t| t.as_str()))?
+                .to_string();
+
+            let description = m
+                .get("description")
+                .and_then(|d| d.as_str())
+                .map(|d| d.replace("\\n", "\n").trim().to_string())
+                .filter(|d| !d.is_empty());
+
+            let cover_url = m
+                .get("coverImage")
+                .and_then(|ci| ci.get("large").or_else(|| ci.get("medium")))
+                .and_then(|u| u.as_str())
+                .map(String::from);
+
+            let start_year = m
+                .get("startDate")
+                .and_then(|sd| sd.get("year"))
+                .and_then(|y| y.as_i64())
+                .map(|y| y as i32);
+
+            let volumes = m
+                .get("volumes")
+                .and_then(|v| v.as_i64())
+                .map(|v| v as i32);
+
+            let chapters = m
+                .get("chapters")
+                .and_then(|v| v.as_i64())
+                .map(|v| v as i32);
+
+            let status = m
+                .get("status")
+                .and_then(|s| s.as_str())
+                .unwrap_or("UNKNOWN")
+                .to_string();
+
+            let site_url = m
+                .get("siteUrl")
+                .and_then(|u| u.as_str())
+                .map(String::from);
+
+            let authors = extract_authors(m);
+
+            let confidence = compute_confidence(&title, &query_lower);
+
+            // Use volumes if known, otherwise fall back to chapters count
+            let (total_volumes, volume_source) = match volumes {
+                Some(v) => (Some(v), "volumes"),
+                None => match chapters {
+                    Some(c) => (Some(c), "chapters"),
+                    None => (None, "unknown"),
+                },
+            };
+
+            Some(SeriesCandidate {
+                external_id: id.to_string(),
+                title,
+                authors,
+                description,
+                publishers: vec![],
+                start_year,
+                total_volumes,
+                cover_url,
+                external_url: site_url,
+                confidence,
+                metadata_json: serde_json::json!({
+                    "status": status,
+                    "chapters": chapters,
+                    "volumes": volumes,
+                    "volume_source": volume_source,
+                }),
+            })
+        })
+        .collect();
+
+    candidates.sort_by(|a, b| b.confidence.partial_cmp(&a.confidence).unwrap_or(std::cmp::Ordering::Equal));
+    candidates.truncate(10);
+    Ok(candidates)
+}
+
+async fn get_series_books_impl(
+    external_id: &str,
+    _config: &ProviderConfig,
+) -> Result<Vec<BookCandidate>, String> {
+    let id: i64 = external_id
+        .parse()
+        .map_err(|_| "invalid AniList ID".to_string())?;
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    let data = graphql_request(
+        &client,
+        DETAIL_QUERY,
+        serde_json::json!({ "id": id }),
+    )
+    .await?;
+
+    let media = match data.get("data").and_then(|d| d.get("Media")) {
+        Some(m) => m,
+        None => return Ok(vec![]),
+    };
+
+    let title_obj = media.get("title").cloned().unwrap_or(serde_json::json!({}));
+    let title = title_obj
+        .get("english")
+        .and_then(|t| t.as_str())
+        .or_else(|| title_obj.get("romaji").and_then(|t| t.as_str()))
+        .unwrap_or("")
+        .to_string();
+
+    let volumes = media
+        .get("volumes")
+        .and_then(|v| v.as_i64())
+        .map(|v| v as i32);
+
+    let chapters = media
+        .get("chapters")
+        .and_then(|v| v.as_i64())
+        .map(|v| v as i32);
+
+    // Use volumes if known, otherwise fall back to chapters count
+    let total = volumes.or(chapters);
+
+    let cover_url = media
+        .get("coverImage")
+        .and_then(|ci| ci.get("large").or_else(|| ci.get("medium")))
+        .and_then(|u| u.as_str())
+        .map(String::from);
+
+    let description = media
+        .get("description")
+        .and_then(|d| d.as_str())
+        .map(|d| d.replace("\\n", "\n").trim().to_string());
+
+    let authors = extract_authors(media);
+
+    // AniList doesn't have per-volume data — generate entries from volumes count (or chapters as fallback)
+    let mut books = Vec::new();
+    if let Some(total) = total {
+        for vol in 1..=total {
+            books.push(BookCandidate {
+                external_book_id: format!("{}-vol-{}", external_id, vol),
+                title: format!("{} Vol. {}", title, vol),
+                volume_number: Some(vol),
+                authors: authors.clone(),
+                isbn: None,
+                summary: if vol == 1 { description.clone() } else { None },
+                cover_url: if vol == 1 { cover_url.clone() } else { None },
+                page_count: None,
+                language: Some("ja".to_string()),
+                publish_date: None,
+                metadata_json: serde_json::json!({}),
+            });
+        }
+    }
+
+    Ok(books)
+}
+
+fn extract_authors(media: &serde_json::Value) -> Vec<String> {
+    let mut authors = Vec::new();
+    if let Some(edges) = media
+        .get("staff")
+        .and_then(|s| s.get("edges"))
+        .and_then(|e| e.as_array())
+    {
+        for edge in edges {
+            let role = edge
+                .get("role")
+                .and_then(|r| r.as_str())
+                .unwrap_or("");
+            let role_lower = role.to_lowercase();
+            if role_lower.contains("story") || role_lower.contains("art") || role_lower.contains("original") {
+                if let Some(name) = edge
+                    .get("node")
+                    .and_then(|n| n.get("name"))
+                    .and_then(|n| n.get("full"))
+                    .and_then(|f| f.as_str())
+                {
+                    if !authors.contains(&name.to_string()) {
+                        authors.push(name.to_string());
+                    }
+                }
+            }
+        }
+    }
+    authors
+}
+
+fn compute_confidence(title: &str, query: &str) -> f32 {
+    let title_lower = title.to_lowercase();
+    if title_lower == query {
+        1.0
+    } else if title_lower.starts_with(query) || query.starts_with(&title_lower) {
+        0.8
+    } else if title_lower.contains(query) || query.contains(&title_lower) {
+        0.7
+    } else {
+        let common: usize = query.chars().filter(|c| title_lower.contains(*c)).count();
+        let max_len = query.len().max(title_lower.len()).max(1);
+        (common as f32 / max_len as f32).clamp(0.1, 0.6)
+    }
+}
--- a/apps/api/src/metadata_providers/bedetheque.rs
+++ b/apps/api/src/metadata_providers/bedetheque.rs
@@ -0,0 +1,671 @@
+use scraper::{Html, Selector};
+
+use super::{BookCandidate, MetadataProvider, ProviderConfig, SeriesCandidate};
+
+pub struct BedethequeProvider;
+
+impl MetadataProvider for BedethequeProvider {
+    fn name(&self) -> &str {
+        "bedetheque"
+    }
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    > {
+        let query = query.to_string();
+        let config = config.clone();
+        Box::pin(async move { search_series_impl(&query, &config).await })
+    }
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    > {
+        let external_id = external_id.to_string();
+        let config = config.clone();
+        Box::pin(async move { get_series_books_impl(&external_id, &config).await })
+    }
+}
+
+fn build_client() -> Result<reqwest::Client, String> {
+    reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(20))
+        .user_agent("Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:108.0) Gecko/20100101 Firefox/108.0")
+        .default_headers({
+            let mut h = reqwest::header::HeaderMap::new();
+            h.insert(
+                reqwest::header::ACCEPT,
+                "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
+                    .parse()
+                    .unwrap(),
+            );
+            h.insert(
+                reqwest::header::ACCEPT_LANGUAGE,
+                "fr-FR,fr;q=0.9,en;q=0.5".parse().unwrap(),
+            );
+            h.insert(reqwest::header::REFERER, "https://www.bedetheque.com/".parse().unwrap());
+            h
+        })
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))
+}
+
+/// Remove diacritics for URL construction (bedetheque uses ASCII slugs)
+fn normalize_for_url(s: &str) -> String {
+    s.chars()
+        .map(|c| match c {
+            'é' | 'è' | 'ê' | 'ë' | 'É' | 'È' | 'Ê' | 'Ë' => 'e',
+            'à' | 'â' | 'ä' | 'À' | 'Â' | 'Ä' => 'a',
+            'ù' | 'û' | 'ü' | 'Ù' | 'Û' | 'Ü' => 'u',
+            'ô' | 'ö' | 'Ô' | 'Ö' => 'o',
+            'î' | 'ï' | 'Î' | 'Ï' => 'i',
+            'ç' | 'Ç' => 'c',
+            'ñ' | 'Ñ' => 'n',
+            _ => c,
+        })
+        .collect()
+}
+
+fn urlencoded(s: &str) -> String {
+    let mut result = String::new();
+    for byte in s.bytes() {
+        match byte {
+            b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => {
+                result.push(byte as char);
+            }
+            b' ' => result.push('+'),
+            _ => result.push_str(&format!("%{:02X}", byte)),
+        }
+    }
+    result
+}
+
+// ---------------------------------------------------------------------------
+// Search
+// ---------------------------------------------------------------------------
+
+async fn search_series_impl(
+    query: &str,
+    _config: &ProviderConfig,
+) -> Result<Vec<SeriesCandidate>, String> {
+    let client = build_client()?;
+
+    // Use the full-text search page
+    let url = format!(
+        "https://www.bedetheque.com/search/tout?RechTexte={}&RechWhere=0",
+        urlencoded(&normalize_for_url(query))
+    );
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Bedetheque request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        return Err(format!("Bedetheque returned {status}"));
+    }
+
+    let html = resp
+        .text()
+        .await
+        .map_err(|e| format!("Failed to read Bedetheque response: {e}"))?;
+
+    // Detect IP blacklist
+    if html.contains("<title></title>") || html.contains("<title> </title>") {
+        return Err("Bedetheque: IP may be rate-limited, please retry later".to_string());
+    }
+
+    // Parse HTML in a block so the non-Send Html type is dropped before any .await
+    let candidates = {
+        let document = Html::parse_document(&html);
+        let link_sel =
+            Selector::parse("a[href*='/serie-']").map_err(|e| format!("selector error: {e}"))?;
+
+        let query_lower = query.to_lowercase();
+        let mut seen = std::collections::HashSet::new();
+        let mut candidates = Vec::new();
+
+        for el in document.select(&link_sel) {
+            let href = match el.value().attr("href") {
+                Some(h) => h.to_string(),
+                None => continue,
+            };
+
+            let (series_id, _slug) = match parse_serie_href(&href) {
+                Some(v) => v,
+                None => continue,
+            };
+
+            if !seen.insert(series_id.clone()) {
+                continue;
+            }
+
+            let title = el.text().collect::<String>().trim().to_string();
+            if title.is_empty() {
+                continue;
+            }
+
+            let confidence = compute_confidence(&title, &query_lower);
+            let cover_url = format!(
+                "https://www.bedetheque.com/cache/thb_series/PlancheS_{}.jpg",
+                series_id
+            );
+
+            candidates.push(SeriesCandidate {
+                external_id: series_id.clone(),
+                title: title.clone(),
+                authors: vec![],
+                description: None,
+                publishers: vec![],
+                start_year: None,
+                total_volumes: None,
+                cover_url: Some(cover_url),
+                external_url: Some(href),
+                confidence,
+                metadata_json: serde_json::json!({}),
+            });
+        }
+
+        candidates.sort_by(|a, b| {
+            b.confidence
+                .partial_cmp(&a.confidence)
+                .unwrap_or(std::cmp::Ordering::Equal)
+        });
+        candidates.truncate(10);
+        candidates
+    }; // document is dropped here — safe to .await below
+
+    // For the top candidates, fetch series details to enrich metadata
+    // (limit to top 3 to avoid hammering the site)
+    let mut enriched = Vec::new();
+    for mut c in candidates {
+        if enriched.len() < 3 {
+            if let Ok(details) = fetch_series_details(&client, &c.external_id, c.external_url.as_deref()).await {
+                if let Some(desc) = details.description {
+                    c.description = Some(desc);
+                }
+                if !details.authors.is_empty() {
+                    c.authors = details.authors;
+                }
+                if !details.publishers.is_empty() {
+                    c.publishers = details.publishers;
+                }
+                if let Some(year) = details.start_year {
+                    c.start_year = Some(year);
+                }
+                if let Some(count) = details.album_count {
+                    c.total_volumes = Some(count);
+                }
+                c.metadata_json = serde_json::json!({
+                    "description": c.description,
+                    "authors": c.authors,
+                    "publishers": c.publishers,
+                    "start_year": c.start_year,
+                    "genres": details.genres,
+                    "status": details.status,
+                    "origin": details.origin,
+                    "language": details.language,
+                });
+            }
+        }
+        enriched.push(c);
+    }
+
+    Ok(enriched)
+}
+
+/// Parse serie URL to extract (id, slug)
+fn parse_serie_href(href: &str) -> Option<(String, String)> {
+    // Patterns:
+    //   https://www.bedetheque.com/serie-3-BD-Blacksad.html
+    //   /serie-3-BD-Blacksad.html
+    let re = regex::Regex::new(r"/serie-(\d+)-[A-Za-z]+-(.+?)(?:__\d+)?\.html").ok()?;
+    let caps = re.captures(href)?;
+    Some((caps[1].to_string(), caps[2].to_string()))
+}
+
+struct SeriesDetails {
+    description: Option<String>,
+    authors: Vec<String>,
+    publishers: Vec<String>,
+    start_year: Option<i32>,
+    album_count: Option<i32>,
+    genres: Vec<String>,
+    status: Option<String>,
+    origin: Option<String>,
+    language: Option<String>,
+}
+
+async fn fetch_series_details(
+    client: &reqwest::Client,
+    series_id: &str,
+    series_url: Option<&str>,
+) -> Result<SeriesDetails, String> {
+    // Build URL — append __10000 to get all albums on one page
+    let url = match series_url {
+        Some(u) => {
+            // Replace .html with __10000.html
+            u.replace(".html", "__10000.html")
+        }
+        None => format!(
+            "https://www.bedetheque.com/serie-{}-BD-Serie__10000.html",
+            series_id
+        ),
+    };
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Failed to fetch series page: {e}"))?;
+
+    if !resp.status().is_success() {
+        return Err(format!("Series page returned {}", resp.status()));
+    }
+
+    let html = resp
+        .text()
+        .await
+        .map_err(|e| format!("Failed to read series page: {e}"))?;
+
+    let doc = Html::parse_document(&html);
+    let mut details = SeriesDetails {
+        description: None,
+        authors: vec![],
+        publishers: vec![],
+        start_year: None,
+        album_count: None,
+        genres: vec![],
+        status: None,
+        origin: None,
+        language: None,
+    };
+
+    // Description from <meta name="description"> — format: "Tout sur la série {name} : {description}"
+    if let Ok(sel) = Selector::parse(r#"meta[name="description"]"#) {
+        if let Some(el) = doc.select(&sel).next() {
+            if let Some(content) = el.value().attr("content") {
+                let desc = content.trim().to_string();
+                // Strip the "Tout sur la série ... : " prefix
+                let cleaned = if let Some(pos) = desc.find(" : ") {
+                    desc[pos + 3..].trim().to_string()
+                } else {
+                    desc
+                };
+                if !cleaned.is_empty() {
+                    details.description = Some(cleaned);
+                }
+            }
+        }
+    }
+
+    // Extract authors from itemprop="author" and itemprop="illustrator" (deduplicated)
+    {
+        let mut authors_set = std::collections::HashSet::new();
+        for attr in ["author", "illustrator"] {
+            if let Ok(sel) = Selector::parse(&format!(r#"[itemprop="{attr}"]"#)) {
+                for el in doc.select(&sel) {
+                    let name = el.text().collect::<String>().trim().to_string();
+                    // Names are "Last, First" — normalize to "First Last"
+                    let normalized = if let Some((last, first)) = name.split_once(',') {
+                        format!("{} {}", first.trim(), last.trim())
+                    } else {
+                        name
+                    };
+                    if !normalized.is_empty() && is_real_author(&normalized) {
+                        authors_set.insert(normalized);
+                    }
+                }
+            }
+        }
+        details.authors = authors_set.into_iter().collect();
+        details.authors.sort();
+    }
+
+    // Extract publishers from itemprop="publisher" (deduplicated)
+    {
+        let mut publishers_set = std::collections::HashSet::new();
+        if let Ok(sel) = Selector::parse(r#"[itemprop="publisher"]"#) {
+            for el in doc.select(&sel) {
+                let name = el.text().collect::<String>().trim().to_string();
+                if !name.is_empty() {
+                    publishers_set.insert(name);
+                }
+            }
+        }
+        details.publishers = publishers_set.into_iter().collect();
+        details.publishers.sort();
+    }
+
+    // Extract series-level info from <li><label>X :</label>value</li> blocks
+    // Genre: <li><label>Genre :</label><span class="style-serie">Animalier, Aventure, Humour</span></li>
+    if let Ok(sel) = Selector::parse("span.style-serie") {
+        if let Some(el) = doc.select(&sel).next() {
+            let text = el.text().collect::<String>();
+            details.genres = text
+                .split(',')
+                .map(|s| s.trim().to_string())
+                .filter(|s| !s.is_empty())
+                .collect();
+        }
+    }
+
+    // Parution: <li><label>Parution :</label><span class="parution-serie">Série finie</span></li>
+    if let Ok(sel) = Selector::parse("span.parution-serie") {
+        if let Some(el) = doc.select(&sel).next() {
+            let text = el.text().collect::<String>().trim().to_string();
+            if !text.is_empty() {
+                details.status = Some(text);
+            }
+        }
+    }
+
+    // Origine and Langue from page text (no dedicated CSS class)
+    let page_text = doc.root_element().text().collect::<String>();
+
+    if let Some(val) = extract_info_value(&page_text, "Origine") {
+        let val = val.lines().next().unwrap_or(val).trim();
+        if !val.is_empty() {
+            details.origin = Some(val.to_string());
+        }
+    }
+
+    if let Some(val) = extract_info_value(&page_text, "Langue") {
+        let val = val.lines().next().unwrap_or(val).trim();
+        if !val.is_empty() {
+            details.language = Some(val.to_string());
+        }
+    }
+
+    // Album count from serie-info text (e.g. "Tomes : 8")
+    if let Ok(re) = regex::Regex::new(r"Tomes?\s*:\s*(\d+)") {
+        if let Some(caps) = re.captures(&page_text) {
+            if let Ok(n) = caps[1].parse::<i32>() {
+                details.album_count = Some(n);
+            }
+        }
+    }
+
+    // Start year from first <meta itemprop="datePublished" content="YYYY-MM-DD">
+    if let Ok(sel) = Selector::parse(r#"[itemprop="datePublished"]"#) {
+        if let Some(el) = doc.select(&sel).next() {
+            if let Some(content) = el.value().attr("content") {
+                // content is "YYYY-MM-DD"
+                if let Some(year_str) = content.split('-').next() {
+                    if let Ok(year) = year_str.parse::<i32>() {
+                        details.start_year = Some(year);
+                    }
+                }
+            }
+        }
+    }
+
+    Ok(details)
+}
+
+/// Extract value after a label like "Scénario : Jean-Claude" → "Jean-Claude"
+fn extract_info_value<'a>(text: &'a str, label: &str) -> Option<&'a str> {
+    // Handle both "Label :" and "Label:"
+    let patterns = [
+        format!("{} :", label),
+        format!("{}:", label),
+        format!("{} :", &label.to_lowercase()),
+    ];
+    for pat in &patterns {
+        if let Some(pos) = text.find(pat.as_str()) {
+            let val = text[pos + pat.len()..].trim();
+            if !val.is_empty() {
+                return Some(val);
+            }
+        }
+    }
+    None
+}
+
+// ---------------------------------------------------------------------------
+// Get series books
+// ---------------------------------------------------------------------------
+
+async fn get_series_books_impl(
+    external_id: &str,
+    _config: &ProviderConfig,
+) -> Result<Vec<BookCandidate>, String> {
+    let client = build_client()?;
+
+    // We need to find the series URL — try a direct fetch
+    // external_id is the numeric series ID
+    // We try to fetch the series page to get the album list
+    let url = format!(
+        "https://www.bedetheque.com/serie-{}-BD-Serie__10000.html",
+        external_id
+    );
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Failed to fetch series: {e}"))?;
+
+    // If the generic slug fails, try without the slug part (bedetheque redirects)
+    let html = if resp.status().is_success() {
+        resp.text().await.map_err(|e| format!("Failed to read: {e}"))?
+    } else {
+        // Try alternative URL pattern
+        let alt_url = format!(
+            "https://www.bedetheque.com/serie-{}__10000.html",
+            external_id
+        );
+        let resp2 = client
+            .get(&alt_url)
+            .send()
+            .await
+            .map_err(|e| format!("Failed to fetch series (alt): {e}"))?;
+        if !resp2.status().is_success() {
+            return Err(format!("Series page not found for id {external_id}"));
+        }
+        resp2.text().await.map_err(|e| format!("Failed to read: {e}"))?
+    };
+
+    if html.contains("<title></title>") {
+        return Err("Bedetheque: IP may be rate-limited".to_string());
+    }
+
+    let doc = Html::parse_document(&html);
+    let mut books = Vec::new();
+
+    // Each album block starts before a .album-main div.
+    // The cover image (<img itemprop="image">) is OUTSIDE .album-main (sibling),
+    // so we iterate over a broader parent. But the simplest approach: parse all
+    // itemprop elements relative to each .album-main, plus pick covers separately.
+    let album_sel = Selector::parse(".album-main").map_err(|e| format!("selector: {e}"))?;
+
+    // Pre-collect cover images — they appear in <img itemprop="image"> before each .album-main
+    // and link to an album URL containing the book ID
+    let cover_sel = Selector::parse(r#"img[itemprop="image"]"#).map_err(|e| format!("selector: {e}"))?;
+    let covers: Vec<String> = doc.select(&cover_sel)
+        .filter_map(|el| el.value().attr("src").map(|s| {
+            if s.starts_with("http") { s.to_string() } else { format!("https://www.bedetheque.com{}", s) }
+        }))
+        .collect();
+
+    static RE_TOME: std::sync::LazyLock<regex::Regex> =
+        std::sync::LazyLock::new(|| regex::Regex::new(r"(?i)-Tome-\d+-").unwrap());
+    static RE_BOOK_ID: std::sync::LazyLock<regex::Regex> =
+        std::sync::LazyLock::new(|| regex::Regex::new(r"-(\d+)\.html").unwrap());
+    static RE_VOLUME: std::sync::LazyLock<regex::Regex> =
+        std::sync::LazyLock::new(|| regex::Regex::new(r"(?i)Tome-(\d+)-").unwrap());
+
+    for (idx, album_el) in doc.select(&album_sel).enumerate() {
+        // Title from <a class="titre" title="..."> — the title attribute is clean
+        let title_sel = Selector::parse("a.titre").ok();
+        let title_el = title_sel.as_ref().and_then(|s| album_el.select(s).next());
+        let title = title_el
+            .and_then(|el| el.value().attr("title"))
+            .unwrap_or("")
+            .trim()
+            .to_string();
+
+        if title.is_empty() {
+            continue;
+        }
+
+        // External book ID from album URL (e.g. "...-1063.html")
+        let album_url = title_el.and_then(|el| el.value().attr("href")).unwrap_or("");
+
+        // Only keep main tomes — their URLs contain "Tome-{N}-"
+        // Skip hors-série (HS), intégrales (INT/INTFL), romans, coffrets, etc.
+        if !RE_TOME.is_match(album_url) {
+            continue;
+        }
+
+        let external_book_id = RE_BOOK_ID
+            .captures(album_url)
+            .map(|c| c[1].to_string())
+            .unwrap_or_default();
+
+        // Volume number from URL pattern "Tome-{N}-" or from itemprop name
+        let volume_number = RE_VOLUME
+            .captures(album_url)
+            .and_then(|c| c[1].parse::<i32>().ok())
+            .or_else(|| extract_volume_from_title(&title));
+
+        // Authors from itemprop="author" and itemprop="illustrator"
+        let mut authors = Vec::new();
+        let author_sel = Selector::parse(r#"[itemprop="author"]"#).ok();
+        let illustrator_sel = Selector::parse(r#"[itemprop="illustrator"]"#).ok();
+        for sel in [&author_sel, &illustrator_sel].into_iter().flatten() {
+            for el in album_el.select(sel) {
+                let name = el.text().collect::<String>().trim().to_string();
+                // Names are "Last, First" format — normalize to "First Last"
+                let normalized = if let Some((last, first)) = name.split_once(',') {
+                    format!("{} {}", first.trim(), last.trim())
+                } else {
+                    name
+                };
+                if !normalized.is_empty() && is_real_author(&normalized) && !authors.contains(&normalized) {
+                    authors.push(normalized);
+                }
+            }
+        }
+
+        // ISBN from <span itemprop="isbn">
+        let isbn = Selector::parse(r#"[itemprop="isbn"]"#)
+            .ok()
+            .and_then(|s| album_el.select(&s).next())
+            .map(|el| el.text().collect::<String>().trim().to_string())
+            .filter(|s| !s.is_empty());
+
+        // Page count from <span itemprop="numberOfPages">
+        let page_count = Selector::parse(r#"[itemprop="numberOfPages"]"#)
+            .ok()
+            .and_then(|s| album_el.select(&s).next())
+            .and_then(|el| el.text().collect::<String>().trim().parse::<i32>().ok());
+
+        // Publish date from <meta itemprop="datePublished" content="YYYY-MM-DD">
+        let publish_date = Selector::parse(r#"[itemprop="datePublished"]"#)
+            .ok()
+            .and_then(|s| album_el.select(&s).next())
+            .and_then(|el| el.value().attr("content").map(|c| c.trim().to_string()))
+            .filter(|s| !s.is_empty());
+
+        // Cover from pre-collected covers (same index)
+        let cover_url = covers.get(idx).cloned();
+
+        books.push(BookCandidate {
+            external_book_id,
+            title,
+            volume_number,
+            authors,
+            isbn,
+            summary: None,
+            cover_url,
+            page_count,
+            language: Some("fr".to_string()),
+            publish_date,
+            metadata_json: serde_json::json!({}),
+        });
+    }
+
+    books.sort_by_key(|b| b.volume_number.unwrap_or(999));
+    Ok(books)
+}
+
+/// Filter out placeholder author names from Bédéthèque
+fn is_real_author(name: &str) -> bool {
+    !name.starts_with('<') && !name.ends_with('>') && name != "Collectif"
+}
+
+fn extract_volume_from_title(title: &str) -> Option<i32> {
+    let patterns = [
+        r"(?i)(?:tome|t\.)\s*(\d+)",
+        r"(?i)(?:vol(?:ume)?\.?)\s*(\d+)",
+        r"#\s*(\d+)",
+    ];
+    for pattern in &patterns {
+        if let Ok(re) = regex::Regex::new(pattern) {
+            if let Some(caps) = re.captures(title) {
+                if let Ok(n) = caps[1].parse::<i32>() {
+                    return Some(n);
+                }
+            }
+        }
+    }
+    None
+}
+
+/// Normalize a title by removing French articles (leading or in parentheses)
+/// and extra whitespace/punctuation, so that "Les Légendaires - Résistance"
+/// and "Légendaires (Les) - Résistance" produce the same canonical form.
+fn normalize_title(s: &str) -> String {
+    let lower = s.to_lowercase();
+    // Remove articles in parentheses: "(les)", "(la)", "(le)", "(l')", "(un)", "(une)", "(des)"
+    let re_parens = regex::Regex::new(r"\s*\((?:les?|la|l'|une?|des|du|d')\)").unwrap();
+    let cleaned = re_parens.replace_all(&lower, "");
+    // Remove leading articles: "les ", "la ", "le ", "l'", "un ", "une ", "des ", "du ", "d'"
+    let re_leading = regex::Regex::new(r"^(?:les?|la|l'|une?|des|du|d')\s+").unwrap();
+    let cleaned = re_leading.replace(&cleaned, "");
+    // Collapse multiple spaces/dashes into single
+    let re_spaces = regex::Regex::new(r"\s+").unwrap();
+    re_spaces.replace_all(cleaned.trim(), " ").to_string()
+}
+
+fn compute_confidence(title: &str, query: &str) -> f32 {
+    let title_lower = title.to_lowercase();
+    let query_lower = query.to_lowercase();
+    if title_lower == query_lower {
+        return 1.0;
+    }
+
+    // Try with normalized forms (handles Bedetheque's "Name (Article)" convention)
+    let title_norm = normalize_title(title);
+    let query_norm = normalize_title(query);
+    if title_norm == query_norm {
+        return 1.0;
+    }
+
+    if title_lower.starts_with(&query_lower) || query_lower.starts_with(&title_lower)
+        || title_norm.starts_with(&query_norm) || query_norm.starts_with(&title_norm)
+    {
+        0.85
+    } else if title_lower.contains(&query_lower) || query_lower.contains(&title_lower)
+        || title_norm.contains(&query_norm) || query_norm.contains(&title_norm)
+    {
+        0.7
+    } else {
+        let common: usize = query_lower
+            .chars()
+            .filter(|c| title_lower.contains(*c))
+            .count();
+        let max_len = query_lower.len().max(title_lower.len()).max(1);
+        (common as f32 / max_len as f32).clamp(0.1, 0.6)
+    }
+}
--- a/apps/api/src/metadata_providers/comicvine.rs
+++ b/apps/api/src/metadata_providers/comicvine.rs
@@ -0,0 +1,267 @@
+use super::{BookCandidate, MetadataProvider, ProviderConfig, SeriesCandidate};
+
+pub struct ComicVineProvider;
+
+impl MetadataProvider for ComicVineProvider {
+    fn name(&self) -> &str {
+        "comicvine"
+    }
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    > {
+        let query = query.to_string();
+        let config = config.clone();
+        Box::pin(async move { search_series_impl(&query, &config).await })
+    }
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    > {
+        let external_id = external_id.to_string();
+        let config = config.clone();
+        Box::pin(async move { get_series_books_impl(&external_id, &config).await })
+    }
+}
+
+fn build_client() -> Result<reqwest::Client, String> {
+    reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .user_agent("StripstreamLibrarian/1.0")
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))
+}
+
+async fn search_series_impl(
+    query: &str,
+    config: &ProviderConfig,
+) -> Result<Vec<SeriesCandidate>, String> {
+    let api_key = config
+        .api_key
+        .as_deref()
+        .filter(|k| !k.is_empty())
+        .ok_or_else(|| "ComicVine requires an API key. Configure it in Settings > Integrations.".to_string())?;
+
+    let client = build_client()?;
+
+    let url = format!(
+        "https://comicvine.gamespot.com/api/search/?api_key={}&format=json&resources=volume&query={}&limit=20",
+        api_key,
+        urlencoded(query)
+    );
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("ComicVine request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("ComicVine returned {status}: {text}"));
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse ComicVine response: {e}"))?;
+
+    let results = match data.get("results").and_then(|r| r.as_array()) {
+        Some(results) => results,
+        None => return Ok(vec![]),
+    };
+
+    let query_lower = query.to_lowercase();
+
+    let mut candidates: Vec<SeriesCandidate> = results
+        .iter()
+        .filter_map(|vol| {
+            let name = vol.get("name").and_then(|n| n.as_str())?.to_string();
+            let id = vol.get("id").and_then(|id| id.as_i64())?;
+            let description = vol
+                .get("description")
+                .and_then(|d| d.as_str())
+                .map(strip_html);
+            let publisher = vol
+                .get("publisher")
+                .and_then(|p| p.get("name"))
+                .and_then(|n| n.as_str())
+                .map(String::from);
+            let start_year = vol
+                .get("start_year")
+                .and_then(|y| y.as_str())
+                .and_then(|y| y.parse::<i32>().ok());
+            let count_of_issues = vol
+                .get("count_of_issues")
+                .and_then(|c| c.as_i64())
+                .map(|c| c as i32);
+            let cover_url = vol
+                .get("image")
+                .and_then(|img| img.get("medium_url").or_else(|| img.get("small_url")))
+                .and_then(|u| u.as_str())
+                .map(String::from);
+            let site_url = vol
+                .get("site_detail_url")
+                .and_then(|u| u.as_str())
+                .map(String::from);
+
+            let confidence = compute_confidence(&name, &query_lower);
+
+            Some(SeriesCandidate {
+                external_id: id.to_string(),
+                title: name,
+                authors: vec![],
+                description,
+                publishers: publisher.into_iter().collect(),
+                start_year,
+                total_volumes: count_of_issues,
+                cover_url,
+                external_url: site_url,
+                confidence,
+                metadata_json: serde_json::json!({}),
+            })
+        })
+        .collect();
+
+    candidates.sort_by(|a, b| b.confidence.partial_cmp(&a.confidence).unwrap_or(std::cmp::Ordering::Equal));
+    candidates.truncate(10);
+    Ok(candidates)
+}
+
+async fn get_series_books_impl(
+    external_id: &str,
+    config: &ProviderConfig,
+) -> Result<Vec<BookCandidate>, String> {
+    let api_key = config
+        .api_key
+        .as_deref()
+        .filter(|k| !k.is_empty())
+        .ok_or_else(|| "ComicVine requires an API key".to_string())?;
+
+    let client = build_client()?;
+
+    let url = format!(
+        "https://comicvine.gamespot.com/api/issues/?api_key={}&format=json&filter=volume:{}&sort=issue_number:asc&limit=100&field_list=id,name,issue_number,description,image,cover_date,site_detail_url",
+        api_key,
+        external_id
+    );
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("ComicVine request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("ComicVine returned {status}: {text}"));
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse ComicVine response: {e}"))?;
+
+    let results = match data.get("results").and_then(|r| r.as_array()) {
+        Some(results) => results,
+        None => return Ok(vec![]),
+    };
+
+    let books: Vec<BookCandidate> = results
+        .iter()
+        .filter_map(|issue| {
+            let id = issue.get("id").and_then(|id| id.as_i64())?;
+            let name = issue
+                .get("name")
+                .and_then(|n| n.as_str())
+                .unwrap_or("")
+                .to_string();
+            let issue_number = issue
+                .get("issue_number")
+                .and_then(|n| n.as_str())
+                .and_then(|n| n.parse::<f64>().ok())
+                .map(|n| n as i32);
+            let description = issue
+                .get("description")
+                .and_then(|d| d.as_str())
+                .map(strip_html);
+            let cover_url = issue
+                .get("image")
+                .and_then(|img| img.get("medium_url").or_else(|| img.get("small_url")))
+                .and_then(|u| u.as_str())
+                .map(String::from);
+            let cover_date = issue
+                .get("cover_date")
+                .and_then(|d| d.as_str())
+                .map(String::from);
+
+            Some(BookCandidate {
+                external_book_id: id.to_string(),
+                title: name,
+                volume_number: issue_number,
+                authors: vec![],
+                isbn: None,
+                summary: description,
+                cover_url,
+                page_count: None,
+                language: None,
+                publish_date: cover_date,
+                metadata_json: serde_json::json!({}),
+            })
+        })
+        .collect();
+
+    Ok(books)
+}
+
+fn strip_html(s: &str) -> String {
+    let mut result = String::new();
+    let mut in_tag = false;
+    for ch in s.chars() {
+        match ch {
+            '<' => in_tag = true,
+            '>' => in_tag = false,
+            _ if !in_tag => result.push(ch),
+            _ => {}
+        }
+    }
+    result.trim().to_string()
+}
+
+fn compute_confidence(title: &str, query: &str) -> f32 {
+    let title_lower = title.to_lowercase();
+    if title_lower == query {
+        1.0
+    } else if title_lower.starts_with(query) || query.starts_with(&title_lower) {
+        0.8
+    } else if title_lower.contains(query) || query.contains(&title_lower) {
+        0.7
+    } else {
+        let common: usize = query.chars().filter(|c| title_lower.contains(*c)).count();
+        let max_len = query.len().max(title_lower.len()).max(1);
+        (common as f32 / max_len as f32).clamp(0.1, 0.6)
+    }
+}
+
+fn urlencoded(s: &str) -> String {
+    let mut result = String::new();
+    for byte in s.bytes() {
+        match byte {
+            b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => {
+                result.push(byte as char);
+            }
+            _ => result.push_str(&format!("%{:02X}", byte)),
+        }
+    }
+    result
+}
--- a/apps/api/src/metadata_providers/google_books.rs
+++ b/apps/api/src/metadata_providers/google_books.rs
@@ -0,0 +1,472 @@
+use super::{BookCandidate, MetadataProvider, ProviderConfig, SeriesCandidate};
+
+pub struct GoogleBooksProvider;
+
+impl MetadataProvider for GoogleBooksProvider {
+    fn name(&self) -> &str {
+        "google_books"
+    }
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    > {
+        let query = query.to_string();
+        let config = config.clone();
+        Box::pin(async move { search_series_impl(&query, &config).await })
+    }
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    > {
+        let external_id = external_id.to_string();
+        let config = config.clone();
+        Box::pin(async move { get_series_books_impl(&external_id, &config).await })
+    }
+}
+
+async fn search_series_impl(
+    query: &str,
+    config: &ProviderConfig,
+) -> Result<Vec<SeriesCandidate>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    let search_query = format!("intitle:{}", query);
+    let mut url = format!(
+        "https://www.googleapis.com/books/v1/volumes?q={}&maxResults=20&printType=books&langRestrict={}",
+        urlencoded(&search_query),
+        urlencoded(&config.language),
+    );
+    if let Some(ref key) = config.api_key {
+        url.push_str(&format!("&key={}", key));
+    }
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Google Books request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("Google Books returned {status}: {text}"));
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse Google Books response: {e}"))?;
+
+    let items = match data.get("items").and_then(|i| i.as_array()) {
+        Some(items) => items,
+        None => return Ok(vec![]),
+    };
+
+    // Group volumes by series name to produce series candidates
+    let query_lower = query.to_lowercase();
+    let mut series_map: std::collections::HashMap<String, SeriesCandidateBuilder> =
+        std::collections::HashMap::new();
+
+    for item in items {
+        let volume_info = match item.get("volumeInfo") {
+            Some(vi) => vi,
+            None => continue,
+        };
+
+        let title = volume_info
+            .get("title")
+            .and_then(|t| t.as_str())
+            .unwrap_or("")
+            .to_string();
+        let authors: Vec<String> = volume_info
+            .get("authors")
+            .and_then(|a| a.as_array())
+            .map(|arr| {
+                arr.iter()
+                    .filter_map(|v| v.as_str().map(String::from))
+                    .collect()
+            })
+            .unwrap_or_default();
+        let publisher = volume_info
+            .get("publisher")
+            .and_then(|p| p.as_str())
+            .map(String::from);
+        let published_date = volume_info
+            .get("publishedDate")
+            .and_then(|d| d.as_str())
+            .map(String::from);
+        let description = volume_info
+            .get("description")
+            .and_then(|d| d.as_str())
+            .map(String::from);
+
+        // Extract series info from title or seriesInfo
+        let series_name = volume_info
+            .get("seriesInfo")
+            .and_then(|si| si.get("title"))
+            .and_then(|t| t.as_str())
+            .map(String::from)
+            .unwrap_or_else(|| extract_series_name(&title));
+
+        let cover_url = volume_info
+            .get("imageLinks")
+            .and_then(|il| {
+                il.get("thumbnail")
+                    .or_else(|| il.get("smallThumbnail"))
+            })
+            .and_then(|u| u.as_str())
+            .map(|s| s.replace("http://", "https://"));
+
+        let google_id = item
+            .get("id")
+            .and_then(|id| id.as_str())
+            .unwrap_or("")
+            .to_string();
+
+        let entry = series_map
+            .entry(series_name.clone())
+            .or_insert_with(|| SeriesCandidateBuilder {
+                title: series_name.clone(),
+                authors: vec![],
+                description: None,
+                publishers: vec![],
+                start_year: None,
+                volume_count: 0,
+                cover_url: None,
+                external_id: google_id.clone(),
+                external_url: None,
+                metadata_json: serde_json::json!({}),
+            });
+
+        entry.volume_count += 1;
+
+        // Merge authors
+        for a in &authors {
+            if !entry.authors.contains(a) {
+                entry.authors.push(a.clone());
+            }
+        }
+
+        // Set description if not yet set
+        if entry.description.is_none() {
+            entry.description = description;
+        }
+
+        // Merge publisher
+        if let Some(ref pub_name) = publisher {
+            if !entry.publishers.contains(pub_name) {
+                entry.publishers.push(pub_name.clone());
+            }
+        }
+
+        // Extract year
+        if let Some(ref date) = published_date {
+            if let Some(year) = extract_year(date) {
+                if entry.start_year.is_none() || entry.start_year.unwrap() > year {
+                    entry.start_year = Some(year);
+                }
+            }
+        }
+
+        if entry.cover_url.is_none() {
+            entry.cover_url = cover_url;
+        }
+
+        entry.external_url = Some(format!(
+            "https://books.google.com/books?id={}",
+            google_id
+        ));
+    }
+
+    let mut candidates: Vec<SeriesCandidate> = series_map
+        .into_values()
+        .map(|b| {
+            let confidence = compute_confidence(&b.title, &query_lower);
+            SeriesCandidate {
+                external_id: b.external_id,
+                title: b.title,
+                authors: b.authors,
+                description: b.description,
+                publishers: b.publishers,
+                start_year: b.start_year,
+                total_volumes: if b.volume_count > 1 {
+                    Some(b.volume_count)
+                } else {
+                    None
+                },
+                cover_url: b.cover_url,
+                external_url: b.external_url,
+                confidence,
+                metadata_json: b.metadata_json,
+            }
+        })
+        .collect();
+
+    candidates.sort_by(|a, b| b.confidence.partial_cmp(&a.confidence).unwrap_or(std::cmp::Ordering::Equal));
+    candidates.truncate(10);
+
+    Ok(candidates)
+}
+
+async fn get_series_books_impl(
+    external_id: &str,
+    config: &ProviderConfig,
+) -> Result<Vec<BookCandidate>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    // First fetch the volume to get its series info
+    let mut url = format!(
+        "https://www.googleapis.com/books/v1/volumes/{}",
+        external_id
+    );
+    if let Some(ref key) = config.api_key {
+        url.push_str(&format!("?key={}", key));
+    }
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Google Books request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("Google Books returned {status}: {text}"));
+    }
+
+    let volume: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse Google Books response: {e}"))?;
+
+    let volume_info = volume.get("volumeInfo").cloned().unwrap_or(serde_json::json!({}));
+    let title = volume_info
+        .get("title")
+        .and_then(|t| t.as_str())
+        .unwrap_or("");
+
+    // Search for more volumes in this series
+    let series_name = extract_series_name(title);
+    let search_query = format!("intitle:{}", series_name);
+    let mut search_url = format!(
+        "https://www.googleapis.com/books/v1/volumes?q={}&maxResults=40&printType=books&langRestrict={}",
+        urlencoded(&search_query),
+        urlencoded(&config.language),
+    );
+    if let Some(ref key) = config.api_key {
+        search_url.push_str(&format!("&key={}", key));
+    }
+
+    let resp = client
+        .get(&search_url)
+        .send()
+        .await
+        .map_err(|e| format!("Google Books search failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        // Return just the single volume as a book
+        return Ok(vec![volume_to_book_candidate(&volume)]);
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse search response: {e}"))?;
+
+    let items = match data.get("items").and_then(|i| i.as_array()) {
+        Some(items) => items,
+        None => return Ok(vec![volume_to_book_candidate(&volume)]),
+    };
+
+    let mut books: Vec<BookCandidate> = items
+        .iter()
+        .map(volume_to_book_candidate)
+        .collect();
+
+    // Sort by volume number
+    books.sort_by_key(|b| b.volume_number.unwrap_or(999));
+
+    Ok(books)
+}
+
+fn volume_to_book_candidate(item: &serde_json::Value) -> BookCandidate {
+    let volume_info = item.get("volumeInfo").cloned().unwrap_or(serde_json::json!({}));
+    let title = volume_info
+        .get("title")
+        .and_then(|t| t.as_str())
+        .unwrap_or("")
+        .to_string();
+    let authors: Vec<String> = volume_info
+        .get("authors")
+        .and_then(|a| a.as_array())
+        .map(|arr| {
+            arr.iter()
+                .filter_map(|v| v.as_str().map(String::from))
+                .collect()
+        })
+        .unwrap_or_default();
+    let isbn = volume_info
+        .get("industryIdentifiers")
+        .and_then(|ids| ids.as_array())
+        .and_then(|arr| {
+            arr.iter()
+                .find(|id| {
+                    id.get("type")
+                        .and_then(|t| t.as_str())
+                        .map(|t| t == "ISBN_13" || t == "ISBN_10")
+                        .unwrap_or(false)
+                })
+                .and_then(|id| id.get("identifier").and_then(|i| i.as_str()))
+        })
+        .map(String::from);
+    let summary = volume_info
+        .get("description")
+        .and_then(|d| d.as_str())
+        .map(String::from);
+    let cover_url = volume_info
+        .get("imageLinks")
+        .and_then(|il| il.get("thumbnail").or_else(|| il.get("smallThumbnail")))
+        .and_then(|u| u.as_str())
+        .map(|s| s.replace("http://", "https://"));
+    let page_count = volume_info
+        .get("pageCount")
+        .and_then(|p| p.as_i64())
+        .map(|p| p as i32);
+    let language = volume_info
+        .get("language")
+        .and_then(|l| l.as_str())
+        .map(String::from);
+    let publish_date = volume_info
+        .get("publishedDate")
+        .and_then(|d| d.as_str())
+        .map(String::from);
+    let google_id = item
+        .get("id")
+        .and_then(|id| id.as_str())
+        .unwrap_or("")
+        .to_string();
+    let volume_number = extract_volume_number(&title);
+
+    BookCandidate {
+        external_book_id: google_id,
+        title,
+        volume_number,
+        authors,
+        isbn,
+        summary,
+        cover_url,
+        page_count,
+        language,
+        publish_date,
+        metadata_json: serde_json::json!({}),
+    }
+}
+
+fn extract_series_name(title: &str) -> String {
+    // Remove trailing volume indicators like "Vol. 1", "Tome 2", "#3", "- Volume 1"
+    let re_patterns = [
+        r"(?i)\s*[-–—]\s*(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*\d+.*$",
+        r"(?i)\s*,?\s*(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*\d+.*$",
+        r"\s*\(\d+\)\s*$",
+        r"\s+\d+\s*$",
+    ];
+
+    let mut result = title.to_string();
+    for pattern in &re_patterns {
+        if let Ok(re) = regex::Regex::new(pattern) {
+            let cleaned = re.replace(&result, "").to_string();
+            if !cleaned.is_empty() {
+                result = cleaned;
+                break;
+            }
+        }
+    }
+
+    result.trim().to_string()
+}
+
+fn extract_volume_number(title: &str) -> Option<i32> {
+    let patterns = [
+        r"(?i)(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*(\d+)",
+        r"\((\d+)\)\s*$",
+        r"\b(\d+)\s*$",
+    ];
+
+    for pattern in &patterns {
+        if let Ok(re) = regex::Regex::new(pattern) {
+            if let Some(caps) = re.captures(title) {
+                if let Some(num) = caps.get(1).and_then(|m| m.as_str().parse::<i32>().ok()) {
+                    return Some(num);
+                }
+            }
+        }
+    }
+
+    None
+}
+
+fn extract_year(date: &str) -> Option<i32> {
+    date.get(..4).and_then(|s| s.parse::<i32>().ok())
+}
+
+fn compute_confidence(title: &str, query: &str) -> f32 {
+    let title_lower = title.to_lowercase();
+    if title_lower == query {
+        1.0
+    } else if title_lower.starts_with(query) || query.starts_with(&title_lower) {
+        0.8
+    } else if title_lower.contains(query) || query.contains(&title_lower) {
+        0.7
+    } else {
+        // Simple character overlap ratio
+        let common: usize = query
+            .chars()
+            .filter(|c| title_lower.contains(*c))
+            .count();
+        let max_len = query.len().max(title_lower.len()).max(1);
+        (common as f32 / max_len as f32).clamp(0.1, 0.6)
+    }
+}
+
+fn urlencoded(s: &str) -> String {
+    let mut result = String::new();
+    for byte in s.bytes() {
+        match byte {
+            b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => {
+                result.push(byte as char);
+            }
+            _ => {
+                result.push_str(&format!("%{:02X}", byte));
+            }
+        }
+    }
+    result
+}
+
+struct SeriesCandidateBuilder {
+    title: String,
+    authors: Vec<String>,
+    description: Option<String>,
+    publishers: Vec<String>,
+    start_year: Option<i32>,
+    volume_count: i32,
+    cover_url: Option<String>,
+    external_id: String,
+    external_url: Option<String>,
+    metadata_json: serde_json::Value,
+}
--- a/apps/api/src/metadata_providers/mod.rs
+++ b/apps/api/src/metadata_providers/mod.rs
@@ -0,0 +1,295 @@
+pub mod anilist;
+pub mod bedetheque;
+pub mod comicvine;
+pub mod google_books;
+pub mod open_library;
+
+use serde::{Deserialize, Serialize};
+
+/// Configuration passed to providers (API keys, etc.)
+#[derive(Debug, Clone, Default)]
+pub struct ProviderConfig {
+    pub api_key: Option<String>,
+    /// Preferred language for metadata results (ISO 639-1: "en", "fr", "es"). Defaults to "en".
+    pub language: String,
+}
+
+/// A candidate series returned by a provider search
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SeriesCandidate {
+    pub external_id: String,
+    pub title: String,
+    pub authors: Vec<String>,
+    pub description: Option<String>,
+    pub publishers: Vec<String>,
+    pub start_year: Option<i32>,
+    pub total_volumes: Option<i32>,
+    pub cover_url: Option<String>,
+    pub external_url: Option<String>,
+    pub confidence: f32,
+    pub metadata_json: serde_json::Value,
+}
+
+/// A candidate book within a series
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct BookCandidate {
+    pub external_book_id: String,
+    pub title: String,
+    pub volume_number: Option<i32>,
+    pub authors: Vec<String>,
+    pub isbn: Option<String>,
+    pub summary: Option<String>,
+    pub cover_url: Option<String>,
+    pub page_count: Option<i32>,
+    pub language: Option<String>,
+    pub publish_date: Option<String>,
+    pub metadata_json: serde_json::Value,
+}
+
+/// Trait that all metadata providers must implement
+pub trait MetadataProvider: Send + Sync {
+    #[allow(dead_code)]
+    fn name(&self) -> &str;
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    >;
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    >;
+}
+
+/// Factory function to get a provider by name
+pub fn get_provider(name: &str) -> Option<Box<dyn MetadataProvider>> {
+    match name {
+        "google_books" => Some(Box::new(google_books::GoogleBooksProvider)),
+        "open_library" => Some(Box::new(open_library::OpenLibraryProvider)),
+        "comicvine" => Some(Box::new(comicvine::ComicVineProvider)),
+        "anilist" => Some(Box::new(anilist::AniListProvider)),
+        "bedetheque" => Some(Box::new(bedetheque::BedethequeProvider)),
+        _ => None,
+    }
+}
+
+// ---------------------------------------------------------------------------
+// End-to-end provider tests
+//
+// These tests hit real external APIs — run them explicitly with:
+//   cargo test -p api providers_e2e -- --ignored --nocapture
+// ---------------------------------------------------------------------------
+
+#[cfg(test)]
+mod providers_e2e {
+    use super::*;
+
+    fn config_fr() -> ProviderConfig {
+        ProviderConfig { api_key: None, language: "fr".to_string() }
+    }
+
+    fn config_en() -> ProviderConfig {
+        ProviderConfig { api_key: None, language: "en".to_string() }
+    }
+
+    fn print_candidate(name: &str, c: &SeriesCandidate) {
+        println!("\n=== {name} — best candidate ===");
+        println!("  title:         {:?}", c.title);
+        println!("  external_id:   {:?}", c.external_id);
+        println!("  authors:       {:?}", c.authors);
+        println!("  description:   {:?}", c.description.as_deref().map(|d| &d[..d.len().min(120)]));
+        println!("  publishers:    {:?}", c.publishers);
+        println!("  start_year:    {:?}", c.start_year);
+        println!("  total_volumes: {:?}", c.total_volumes);
+        println!("  cover_url:     {}", c.cover_url.is_some());
+        println!("  external_url:  {}", c.external_url.is_some());
+        println!("  confidence:    {:.2}", c.confidence);
+        println!("  metadata_json: {}", serde_json::to_string_pretty(&c.metadata_json).unwrap_or_default());
+    }
+
+    fn print_books(name: &str, books: &[BookCandidate]) {
+        println!("\n=== {name} — {} books ===", books.len());
+        for (i, b) in books.iter().take(5).enumerate() {
+            println!(
+                "  [{}] vol={:?} title={:?} authors={} isbn={:?} pages={:?} lang={:?} date={:?} cover={}",
+                i, b.volume_number, b.title, b.authors.len(), b.isbn, b.page_count, b.language, b.publish_date, b.cover_url.is_some()
+            );
+        }
+        if books.len() > 5 { println!("  ... and {} more", books.len() - 5); }
+
+        let with_vol = books.iter().filter(|b| b.volume_number.is_some()).count();
+        let with_isbn = books.iter().filter(|b| b.isbn.is_some()).count();
+        let with_authors = books.iter().filter(|b| !b.authors.is_empty()).count();
+        let with_date = books.iter().filter(|b| b.publish_date.is_some()).count();
+        let with_cover = books.iter().filter(|b| b.cover_url.is_some()).count();
+        let with_pages = books.iter().filter(|b| b.page_count.is_some()).count();
+        println!("  --- field coverage ---");
+        println!("    volume_number: {with_vol}/{}", books.len());
+        println!("    isbn:          {with_isbn}/{}", books.len());
+        println!("    authors:       {with_authors}/{}", books.len());
+        println!("    publish_date:  {with_date}/{}", books.len());
+        println!("    cover_url:     {with_cover}/{}", books.len());
+        println!("    page_count:    {with_pages}/{}", books.len());
+    }
+
+    // --- Google Books ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn google_books_search_and_books() {
+        let p = get_provider("google_books").unwrap();
+        let cfg = config_en();
+
+        let candidates = p.search_series("Blacksad", &cfg).await.unwrap();
+        assert!(!candidates.is_empty(), "google_books: no results for Blacksad");
+        print_candidate("google_books", &candidates[0]);
+
+        let books = p.get_series_books(&candidates[0].external_id, &cfg).await.unwrap();
+        print_books("google_books", &books);
+        assert!(!books.is_empty(), "google_books: no books returned");
+    }
+
+    // --- Open Library ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn open_library_search_and_books() {
+        let p = get_provider("open_library").unwrap();
+        let cfg = config_en();
+
+        let candidates = p.search_series("Sandman Neil Gaiman", &cfg).await.unwrap();
+        assert!(!candidates.is_empty(), "open_library: no results for Sandman");
+        print_candidate("open_library", &candidates[0]);
+
+        let books = p.get_series_books(&candidates[0].external_id, &cfg).await.unwrap();
+        print_books("open_library", &books);
+        assert!(!books.is_empty(), "open_library: no books returned");
+    }
+
+    // --- AniList ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn anilist_search_finished() {
+        let p = get_provider("anilist").unwrap();
+        let cfg = config_fr();
+
+        let candidates = p.search_series("Death Note", &cfg).await.unwrap();
+        assert!(!candidates.is_empty(), "anilist: no results for Death Note");
+        print_candidate("anilist (finished)", &candidates[0]);
+
+        let best = &candidates[0];
+        assert!(best.total_volumes.is_some(), "anilist: finished series should have total_volumes");
+        assert!(best.description.is_some(), "anilist: should have description");
+        assert!(!best.authors.is_empty(), "anilist: should have authors");
+
+        let status = best.metadata_json.get("status").and_then(|s| s.as_str());
+        assert_eq!(status, Some("FINISHED"), "anilist: Death Note should be FINISHED");
+
+        let books = p.get_series_books(&best.external_id, &cfg).await.unwrap();
+        print_books("anilist (Death Note)", &books);
+        assert!(books.len() >= 12, "anilist: Death Note should have ≥12 volumes, got {}", books.len());
+    }
+
+    #[tokio::test]
+    #[ignore]
+    async fn anilist_search_ongoing() {
+        let p = get_provider("anilist").unwrap();
+        let cfg = config_fr();
+
+        let candidates = p.search_series("One Piece", &cfg).await.unwrap();
+        assert!(!candidates.is_empty(), "anilist: no results for One Piece");
+        print_candidate("anilist (ongoing)", &candidates[0]);
+
+        let best = &candidates[0];
+        let status = best.metadata_json.get("status").and_then(|s| s.as_str());
+        assert_eq!(status, Some("RELEASING"), "anilist: One Piece should be RELEASING");
+
+        let volume_source = best.metadata_json.get("volume_source").and_then(|s| s.as_str());
+        println!("  volume_source: {:?}", volume_source);
+        println!("  total_volumes: {:?}", best.total_volumes);
+    }
+
+    // --- Bédéthèque ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn bedetheque_search_and_books() {
+        let p = get_provider("bedetheque").unwrap();
+        let cfg = config_fr();
+
+        let candidates = p.search_series("De Cape et de Crocs", &cfg).await.unwrap();
+        assert!(!candidates.is_empty(), "bedetheque: no results");
+        print_candidate("bedetheque", &candidates[0]);
+
+        let best = &candidates[0];
+        assert!(best.description.is_some(), "bedetheque: should have description");
+        assert!(!best.authors.is_empty(), "bedetheque: should have authors");
+        assert!(!best.publishers.is_empty(), "bedetheque: should have publishers");
+        assert!(best.start_year.is_some(), "bedetheque: should have start_year");
+        assert!(best.total_volumes.is_some(), "bedetheque: should have total_volumes");
+
+        // Enriched metadata_json
+        let mj = &best.metadata_json;
+        assert!(mj.get("genres").and_then(|g| g.as_array()).map(|a| !a.is_empty()).unwrap_or(false), "bedetheque: should have genres");
+        assert!(mj.get("status").and_then(|s| s.as_str()).is_some(), "bedetheque: should have status");
+
+        let books = p.get_series_books(&best.external_id, &cfg).await.unwrap();
+        print_books("bedetheque", &books);
+        assert!(books.len() >= 12, "bedetheque: De Cape et de Crocs should have ≥12 volumes, got {}", books.len());
+    }
+
+    // --- ComicVine (needs API key) ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn comicvine_no_key() {
+        let p = get_provider("comicvine").unwrap();
+        let cfg = config_en();
+
+        let result = p.search_series("Batman", &cfg).await;
+        println!("\n=== comicvine (no key) ===");
+        match result {
+            Ok(c) => println!("  returned {} candidates (unexpected without key)", c.len()),
+            Err(e) => println!("  expected error: {e}"),
+        }
+    }
+
+    // --- Cross-provider comparison ---
+
+    #[tokio::test]
+    #[ignore]
+    async fn cross_provider_blacksad() {
+        println!("\n{}", "=".repeat(60));
+        println!("  Cross-provider comparison: Blacksad");
+        println!("{}\n", "=".repeat(60));
+
+        let providers: Vec<(&str, ProviderConfig)> = vec![
+            ("google_books", config_en()),
+            ("open_library", config_en()),
+            ("anilist", config_fr()),
+            ("bedetheque", config_fr()),
+        ];
+
+        for (name, cfg) in &providers {
+            let p = get_provider(name).unwrap();
+            match p.search_series("Blacksad", cfg).await {
+                Ok(candidates) if !candidates.is_empty() => {
+                    let b = &candidates[0];
+                    println!("[{name}]  title={:?}  authors={}  desc={}  pubs={}  year={:?}  vols={:?}  cover={}  url={}  conf={:.2}",
+                        b.title, b.authors.len(), b.description.is_some(), b.publishers.len(),
+                        b.start_year, b.total_volumes, b.cover_url.is_some(), b.external_url.is_some(), b.confidence);
+                }
+                Ok(_) => println!("[{name}]  no results"),
+                Err(e) => println!("[{name}]  error: {e}"),
+            }
+        }
+    }
+}
--- a/apps/api/src/metadata_providers/open_library.rs
+++ b/apps/api/src/metadata_providers/open_library.rs
@@ -0,0 +1,351 @@
+use super::{BookCandidate, MetadataProvider, ProviderConfig, SeriesCandidate};
+
+pub struct OpenLibraryProvider;
+
+impl MetadataProvider for OpenLibraryProvider {
+    fn name(&self) -> &str {
+        "open_library"
+    }
+
+    fn search_series(
+        &self,
+        query: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<SeriesCandidate>, String>> + Send + '_>,
+    > {
+        let query = query.to_string();
+        let config = config.clone();
+        Box::pin(async move { search_series_impl(&query, &config).await })
+    }
+
+    fn get_series_books(
+        &self,
+        external_id: &str,
+        config: &ProviderConfig,
+    ) -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<BookCandidate>, String>> + Send + '_>,
+    > {
+        let external_id = external_id.to_string();
+        let config = config.clone();
+        Box::pin(async move { get_series_books_impl(&external_id, &config).await })
+    }
+}
+
+async fn search_series_impl(
+    query: &str,
+    config: &ProviderConfig,
+) -> Result<Vec<SeriesCandidate>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    // Open Library uses 3-letter language codes
+    let ol_lang = match config.language.as_str() {
+        "fr" => "fre",
+        "es" => "spa",
+        _ => "eng",
+    };
+
+    let url = format!(
+        "https://openlibrary.org/search.json?title={}&limit=20&language={}",
+        urlencoded(query),
+        ol_lang,
+    );
+
+    let resp = client
+        .get(&url)
+        .send()
+        .await
+        .map_err(|e| format!("Open Library request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(format!("Open Library returned {status}: {text}"));
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse Open Library response: {e}"))?;
+
+    let docs = match data.get("docs").and_then(|d| d.as_array()) {
+        Some(docs) => docs,
+        None => return Ok(vec![]),
+    };
+
+    let query_lower = query.to_lowercase();
+    let mut series_map: std::collections::HashMap<String, SeriesCandidateBuilder> =
+        std::collections::HashMap::new();
+
+    for doc in docs {
+        let title = doc
+            .get("title")
+            .and_then(|t| t.as_str())
+            .unwrap_or("")
+            .to_string();
+        let authors: Vec<String> = doc
+            .get("author_name")
+            .and_then(|a| a.as_array())
+            .map(|arr| arr.iter().filter_map(|v| v.as_str().map(String::from)).collect())
+            .unwrap_or_default();
+        let publishers: Vec<String> = doc
+            .get("publisher")
+            .and_then(|a| a.as_array())
+            .map(|arr| {
+                let mut pubs: Vec<String> = arr.iter().filter_map(|v| v.as_str().map(String::from)).collect();
+                pubs.truncate(3);
+                pubs
+            })
+            .unwrap_or_default();
+        let first_publish_year = doc
+            .get("first_publish_year")
+            .and_then(|y| y.as_i64())
+            .map(|y| y as i32);
+        let cover_i = doc.get("cover_i").and_then(|c| c.as_i64());
+        let cover_url = cover_i.map(|id| format!("https://covers.openlibrary.org/b/id/{}-M.jpg", id));
+        let key = doc
+            .get("key")
+            .and_then(|k| k.as_str())
+            .unwrap_or("")
+            .to_string();
+
+        let series_name = extract_series_name(&title);
+
+        let entry = series_map
+            .entry(series_name.clone())
+            .or_insert_with(|| SeriesCandidateBuilder {
+                title: series_name.clone(),
+                authors: vec![],
+                description: None,
+                publishers: vec![],
+                start_year: None,
+                volume_count: 0,
+                cover_url: None,
+                external_id: key.clone(),
+                external_url: if key.is_empty() {
+                    None
+                } else {
+                    Some(format!("https://openlibrary.org{}", key))
+                },
+            });
+
+        entry.volume_count += 1;
+
+        for a in &authors {
+            if !entry.authors.contains(a) {
+                entry.authors.push(a.clone());
+            }
+        }
+        for p in &publishers {
+            if !entry.publishers.contains(p) {
+                entry.publishers.push(p.clone());
+            }
+        }
+        if (entry.start_year.is_none() || first_publish_year.is_some_and(|y| entry.start_year.unwrap() > y))
+            && first_publish_year.is_some()
+        {
+            entry.start_year = first_publish_year;
+        }
+        if entry.cover_url.is_none() {
+            entry.cover_url = cover_url;
+        }
+    }
+
+    let mut candidates: Vec<SeriesCandidate> = series_map
+        .into_values()
+        .map(|b| {
+            let confidence = compute_confidence(&b.title, &query_lower);
+            SeriesCandidate {
+                external_id: b.external_id,
+                title: b.title,
+                authors: b.authors,
+                description: b.description,
+                publishers: b.publishers,
+                start_year: b.start_year,
+                total_volumes: if b.volume_count > 1 { Some(b.volume_count) } else { None },
+                cover_url: b.cover_url,
+                external_url: b.external_url,
+                confidence,
+                metadata_json: serde_json::json!({}),
+            }
+        })
+        .collect();
+
+    candidates.sort_by(|a, b| b.confidence.partial_cmp(&a.confidence).unwrap_or(std::cmp::Ordering::Equal));
+    candidates.truncate(10);
+    Ok(candidates)
+}
+
+async fn get_series_books_impl(
+    external_id: &str,
+    _config: &ProviderConfig,
+) -> Result<Vec<BookCandidate>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(15))
+        .build()
+        .map_err(|e| format!("failed to build HTTP client: {e}"))?;
+
+    // Fetch the work to get its title for series search
+    let url = format!("https://openlibrary.org{}.json", external_id);
+    let resp = client.get(&url).send().await.map_err(|e| format!("Open Library request failed: {e}"))?;
+
+    let work: serde_json::Value = if resp.status().is_success() {
+        resp.json().await.map_err(|e| format!("Failed to parse response: {e}"))?
+    } else {
+        serde_json::json!({})
+    };
+
+    let title = work.get("title").and_then(|t| t.as_str()).unwrap_or("");
+    let series_name = extract_series_name(title);
+
+    // Search for editions of this series
+    let search_url = format!(
+        "https://openlibrary.org/search.json?title={}&limit=40",
+        urlencoded(&series_name)
+    );
+    let resp = client.get(&search_url).send().await.map_err(|e| format!("Open Library search failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        return Ok(vec![]);
+    }
+
+    let data: serde_json::Value = resp.json().await.map_err(|e| format!("Failed to parse response: {e}"))?;
+    let docs = match data.get("docs").and_then(|d| d.as_array()) {
+        Some(docs) => docs,
+        None => return Ok(vec![]),
+    };
+
+    let mut books: Vec<BookCandidate> = docs
+        .iter()
+        .map(|doc| {
+            let title = doc.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();
+            let authors: Vec<String> = doc
+                .get("author_name")
+                .and_then(|a| a.as_array())
+                .map(|arr| arr.iter().filter_map(|v| v.as_str().map(String::from)).collect())
+                .unwrap_or_default();
+            let isbn = doc
+                .get("isbn")
+                .and_then(|a| a.as_array())
+                .and_then(|arr| arr.first())
+                .and_then(|v| v.as_str())
+                .map(String::from);
+            let page_count = doc
+                .get("number_of_pages_median")
+                .and_then(|n| n.as_i64())
+                .map(|n| n as i32);
+            let cover_i = doc.get("cover_i").and_then(|c| c.as_i64());
+            let cover_url = cover_i.map(|id| format!("https://covers.openlibrary.org/b/id/{}-M.jpg", id));
+            let language = doc
+                .get("language")
+                .and_then(|a| a.as_array())
+                .and_then(|arr| arr.first())
+                .and_then(|v| v.as_str())
+                .map(String::from);
+            let publish_date = doc
+                .get("first_publish_year")
+                .and_then(|y| y.as_i64())
+                .map(|y| y.to_string());
+            let key = doc.get("key").and_then(|k| k.as_str()).unwrap_or("").to_string();
+            let volume_number = extract_volume_number(&title);
+
+            BookCandidate {
+                external_book_id: key,
+                title,
+                volume_number,
+                authors,
+                isbn,
+                summary: None,
+                cover_url,
+                page_count,
+                language,
+                publish_date,
+                metadata_json: serde_json::json!({}),
+            }
+        })
+        .collect();
+
+    books.sort_by_key(|b| b.volume_number.unwrap_or(999));
+    Ok(books)
+}
+
+fn extract_series_name(title: &str) -> String {
+    let re_patterns = [
+        r"(?i)\s*[-–—]\s*(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*\d+.*$",
+        r"(?i)\s*,?\s*(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*\d+.*$",
+        r"\s*\(\d+\)\s*$",
+        r"\s+\d+\s*$",
+    ];
+    let mut result = title.to_string();
+    for pattern in &re_patterns {
+        if let Ok(re) = regex::Regex::new(pattern) {
+            let cleaned = re.replace(&result, "").to_string();
+            if !cleaned.is_empty() {
+                result = cleaned;
+                break;
+            }
+        }
+    }
+    result.trim().to_string()
+}
+
+fn extract_volume_number(title: &str) -> Option<i32> {
+    let patterns = [
+        r"(?i)(?:vol(?:ume)?\.?\s*|tome\s*|t\.\s*|#)\s*(\d+)",
+        r"\((\d+)\)\s*$",
+        r"\b(\d+)\s*$",
+    ];
+    for pattern in &patterns {
+        if let Ok(re) = regex::Regex::new(pattern) {
+            if let Some(caps) = re.captures(title) {
+                if let Some(num) = caps.get(1).and_then(|m| m.as_str().parse::<i32>().ok()) {
+                    return Some(num);
+                }
+            }
+        }
+    }
+    None
+}
+
+fn compute_confidence(title: &str, query: &str) -> f32 {
+    let title_lower = title.to_lowercase();
+    if title_lower == query {
+        1.0
+    } else if title_lower.starts_with(query) || query.starts_with(&title_lower) {
+        0.8
+    } else if title_lower.contains(query) || query.contains(&title_lower) {
+        0.7
+    } else {
+        let common: usize = query.chars().filter(|c| title_lower.contains(*c)).count();
+        let max_len = query.len().max(title_lower.len()).max(1);
+        (common as f32 / max_len as f32).clamp(0.1, 0.6)
+    }
+}
+
+fn urlencoded(s: &str) -> String {
+    let mut result = String::new();
+    for byte in s.bytes() {
+        match byte {
+            b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => {
+                result.push(byte as char);
+            }
+            _ => result.push_str(&format!("%{:02X}", byte)),
+        }
+    }
+    result
+}
+
+struct SeriesCandidateBuilder {
+    title: String,
+    authors: Vec<String>,
+    description: Option<String>,
+    publishers: Vec<String>,
+    start_year: Option<i32>,
+    volume_count: i32,
+    cover_url: Option<String>,
+    external_id: String,
+    external_url: Option<String>,
+}
--- a/apps/api/src/metadata_refresh.rs
+++ b/apps/api/src/metadata_refresh.rs
@@ -0,0 +1,825 @@
+use axum::{
+    extract::{Path as AxumPath, State},
+    Json,
+};
+use serde::{Deserialize, Serialize};
+use sqlx::{PgPool, Row};
+use uuid::Uuid;
+use utoipa::ToSchema;
+use tracing::{info, warn};
+
+use crate::{error::ApiError, metadata_providers, state::AppState};
+use crate::metadata_batch::{load_provider_config_from_pool, is_job_cancelled, update_progress};
+
+// ---------------------------------------------------------------------------
+// DTOs
+// ---------------------------------------------------------------------------
+
+#[derive(Deserialize, ToSchema)]
+pub struct MetadataRefreshRequest {
+    pub library_id: String,
+}
+
+/// A single field change: old → new
+#[derive(Serialize, Clone)]
+struct FieldDiff {
+    field: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    old: Option<serde_json::Value>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    new: Option<serde_json::Value>,
+}
+
+/// Per-book changes
+#[derive(Serialize, Clone)]
+struct BookDiff {
+    book_id: String,
+    title: String,
+    volume: Option<i32>,
+    changes: Vec<FieldDiff>,
+}
+
+/// Per-series change report
+#[derive(Serialize, Clone)]
+struct SeriesRefreshResult {
+    series_name: String,
+    provider: String,
+    status: String, // "updated", "unchanged", "error"
+    series_changes: Vec<FieldDiff>,
+    book_changes: Vec<BookDiff>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    error: Option<String>,
+}
+
+/// Response DTO for the report endpoint
+#[derive(Serialize, ToSchema)]
+pub struct MetadataRefreshReportDto {
+    #[schema(value_type = String)]
+    pub job_id: Uuid,
+    pub status: String,
+    pub total_links: i64,
+    pub refreshed: i64,
+    pub unchanged: i64,
+    pub errors: i64,
+    pub changes: serde_json::Value,
+}
+
+// ---------------------------------------------------------------------------
+// POST /metadata/refresh — Trigger a metadata refresh job
+// ---------------------------------------------------------------------------
+
+#[utoipa::path(
+    post,
+    path = "/metadata/refresh",
+    tag = "metadata",
+    request_body = MetadataRefreshRequest,
+    responses(
+        (status = 200, description = "Job created"),
+        (status = 400, description = "Bad request"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn start_refresh(
+    State(state): State<AppState>,
+    Json(body): Json<MetadataRefreshRequest>,
+) -> Result<Json<serde_json::Value>, ApiError> {
+    let library_id: Uuid = body
+        .library_id
+        .parse()
+        .map_err(|_| ApiError::bad_request("invalid library_id"))?;
+
+    // Verify library exists
+    sqlx::query("SELECT 1 FROM libraries WHERE id = $1")
+        .bind(library_id)
+        .fetch_optional(&state.pool)
+        .await?
+        .ok_or_else(|| ApiError::not_found("library not found"))?;
+
+    // Check no existing running metadata_refresh job for this library
+    let existing: Option<Uuid> = sqlx::query_scalar(
+        "SELECT id FROM index_jobs WHERE library_id = $1 AND type = 'metadata_refresh' AND status IN ('pending', 'running') LIMIT 1",
+    )
+    .bind(library_id)
+    .fetch_optional(&state.pool)
+    .await?;
+
+    if let Some(existing_id) = existing {
+        return Ok(Json(serde_json::json!({
+            "id": existing_id.to_string(),
+            "status": "already_running",
+        })));
+    }
+
+    // Check there are approved links to refresh
+    let link_count: i64 = sqlx::query_scalar(
+        "SELECT COUNT(*) FROM external_metadata_links WHERE library_id = $1 AND status = 'approved'",
+    )
+    .bind(library_id)
+    .fetch_one(&state.pool)
+    .await?;
+
+    if link_count == 0 {
+        return Err(ApiError::bad_request("No approved metadata links to refresh for this library"));
+    }
+
+    let job_id = Uuid::new_v4();
+    sqlx::query(
+        "INSERT INTO index_jobs (id, library_id, type, status) VALUES ($1, $2, 'metadata_refresh', 'pending')",
+    )
+    .bind(job_id)
+    .bind(library_id)
+    .execute(&state.pool)
+    .await?;
+
+    // Spawn the background processing task
+    let pool = state.pool.clone();
+    let library_name: Option<String> = sqlx::query_scalar("SELECT name FROM libraries WHERE id = $1")
+        .bind(library_id)
+        .fetch_optional(&state.pool)
+        .await
+        .ok()
+        .flatten();
+    tokio::spawn(async move {
+        if let Err(e) = process_metadata_refresh(&pool, job_id, library_id).await {
+            warn!("[METADATA_REFRESH] job {job_id} failed: {e}");
+            let _ = sqlx::query(
+                "UPDATE index_jobs SET status = 'failed', error_opt = $2, finished_at = NOW() WHERE id = $1",
+            )
+            .bind(job_id)
+            .bind(e.to_string())
+            .execute(&pool)
+            .await;
+            notifications::notify(
+                pool.clone(),
+                notifications::NotificationEvent::MetadataRefreshFailed {
+                    library_name,
+                    error: e.to_string(),
+                },
+            );
+        }
+    });
+
+    Ok(Json(serde_json::json!({
+        "id": job_id.to_string(),
+        "status": "pending",
+    })))
+}
+
+// ---------------------------------------------------------------------------
+// GET /metadata/refresh/:id/report — Refresh report from stats_json
+// ---------------------------------------------------------------------------
+
+#[utoipa::path(
+    get,
+    path = "/metadata/refresh/{id}/report",
+    tag = "metadata",
+    params(("id" = String, Path, description = "Job UUID")),
+    responses(
+        (status = 200, body = MetadataRefreshReportDto),
+        (status = 404, description = "Job not found"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn get_refresh_report(
+    State(state): State<AppState>,
+    AxumPath(job_id): AxumPath<Uuid>,
+) -> Result<Json<MetadataRefreshReportDto>, ApiError> {
+    let row = sqlx::query(
+        "SELECT status, stats_json, total_files FROM index_jobs WHERE id = $1 AND type = 'metadata_refresh'",
+    )
+    .bind(job_id)
+    .fetch_optional(&state.pool)
+    .await?
+    .ok_or_else(|| ApiError::not_found("job not found"))?;
+
+    let job_status: String = row.get("status");
+    let stats: Option<serde_json::Value> = row.get("stats_json");
+    let total_files: Option<i32> = row.get("total_files");
+
+    let (refreshed, unchanged, errors, changes) = if let Some(ref s) = stats {
+        (
+            s.get("refreshed").and_then(|v| v.as_i64()).unwrap_or(0),
+            s.get("unchanged").and_then(|v| v.as_i64()).unwrap_or(0),
+            s.get("errors").and_then(|v| v.as_i64()).unwrap_or(0),
+            s.get("changes").cloned().unwrap_or(serde_json::json!([])),
+        )
+    } else {
+        (0, 0, 0, serde_json::json!([]))
+    };
+
+    Ok(Json(MetadataRefreshReportDto {
+        job_id,
+        status: job_status,
+        total_links: total_files.unwrap_or(0) as i64,
+        refreshed,
+        unchanged,
+        errors,
+        changes,
+    }))
+}
+
+// ---------------------------------------------------------------------------
+// Background processing
+// ---------------------------------------------------------------------------
+
+async fn process_metadata_refresh(
+    pool: &PgPool,
+    job_id: Uuid,
+    library_id: Uuid,
+) -> Result<(), String> {
+    // Set job to running
+    sqlx::query("UPDATE index_jobs SET status = 'running', started_at = NOW() WHERE id = $1")
+        .bind(job_id)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    // Get all approved links for this library
+    let links: Vec<(Uuid, String, String, String)> = sqlx::query_as(
+        r#"
+        SELECT id, series_name, provider, external_id
+        FROM external_metadata_links
+        WHERE library_id = $1 AND status = 'approved'
+        ORDER BY series_name
+        "#,
+    )
+    .bind(library_id)
+    .fetch_all(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    let total = links.len() as i32;
+    sqlx::query("UPDATE index_jobs SET total_files = $2 WHERE id = $1")
+        .bind(job_id)
+        .bind(total)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    let mut processed = 0i32;
+    let mut refreshed = 0i32;
+    let mut unchanged = 0i32;
+    let mut errors = 0i32;
+    let mut all_results: Vec<SeriesRefreshResult> = Vec::new();
+
+    for (link_id, series_name, provider_name, external_id) in &links {
+        // Check cancellation
+        if is_job_cancelled(pool, job_id).await {
+            sqlx::query(
+                "UPDATE index_jobs SET status = 'cancelled', finished_at = NOW() WHERE id = $1",
+            )
+            .bind(job_id)
+            .execute(pool)
+            .await
+            .map_err(|e| e.to_string())?;
+            return Ok(());
+        }
+
+        match refresh_link(pool, *link_id, library_id, series_name, provider_name, external_id).await {
+            Ok(result) => {
+                if result.status == "updated" {
+                    refreshed += 1;
+                    info!("[METADATA_REFRESH] job={job_id} updated series='{series_name}' via {provider_name}");
+                } else {
+                    unchanged += 1;
+                }
+                all_results.push(result);
+            }
+            Err(e) => {
+                errors += 1;
+                warn!("[METADATA_REFRESH] job={job_id} error on series='{series_name}': {e}");
+                all_results.push(SeriesRefreshResult {
+                    series_name: series_name.clone(),
+                    provider: provider_name.clone(),
+                    status: "error".to_string(),
+                    series_changes: vec![],
+                    book_changes: vec![],
+                    error: Some(e),
+                });
+            }
+        }
+
+        processed += 1;
+        update_progress(pool, job_id, processed, total, series_name).await;
+
+        // Rate limit: 1s delay between provider calls
+        tokio::time::sleep(std::time::Duration::from_millis(1000)).await;
+    }
+
+    // Only keep series that have changes or errors (filter out "unchanged")
+    let changes_only: Vec<&SeriesRefreshResult> = all_results
+        .iter()
+        .filter(|r| r.status != "unchanged")
+        .collect();
+
+    // Build stats summary
+    let stats = serde_json::json!({
+        "total_links": total,
+        "refreshed": refreshed,
+        "unchanged": unchanged,
+        "errors": errors,
+        "changes": changes_only,
+    });
+
+    sqlx::query(
+        "UPDATE index_jobs SET status = 'success', finished_at = NOW(), progress_percent = 100, stats_json = $2 WHERE id = $1",
+    )
+    .bind(job_id)
+    .bind(stats)
+    .execute(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    info!("[METADATA_REFRESH] job={job_id} completed: {refreshed} updated, {unchanged} unchanged, {errors} errors");
+
+    let library_name: Option<String> = sqlx::query_scalar("SELECT name FROM libraries WHERE id = $1")
+        .bind(library_id)
+        .fetch_optional(pool)
+        .await
+        .ok()
+        .flatten();
+    notifications::notify(
+        pool.clone(),
+        notifications::NotificationEvent::MetadataRefreshCompleted {
+            library_name,
+            refreshed,
+            unchanged,
+            errors,
+        },
+    );
+
+    Ok(())
+}
+
+/// Refresh a single approved metadata link: re-fetch from provider, compare, sync, return diff
+async fn refresh_link(
+    pool: &PgPool,
+    link_id: Uuid,
+    library_id: Uuid,
+    series_name: &str,
+    provider_name: &str,
+    external_id: &str,
+) -> Result<SeriesRefreshResult, String> {
+    let provider = metadata_providers::get_provider(provider_name)
+        .ok_or_else(|| format!("Unknown provider: {provider_name}"))?;
+
+    let config = load_provider_config_from_pool(pool, provider_name).await;
+
+    let mut series_changes: Vec<FieldDiff> = Vec::new();
+    let mut book_changes: Vec<BookDiff> = Vec::new();
+
+    // ── Series-level refresh ──────────────────────────────────────────────
+    let candidates = provider
+        .search_series(series_name, &config)
+        .await
+        .map_err(|e| format!("provider search error: {e}"))?;
+
+    let candidate = candidates
+        .iter()
+        .find(|c| c.external_id == external_id)
+        .or_else(|| candidates.first());
+
+    if let Some(candidate) = candidate {
+        // Update link metadata_json
+        sqlx::query(
+            r#"
+            UPDATE external_metadata_links
+            SET metadata_json = $2,
+                total_volumes_external = $3,
+                updated_at = NOW()
+            WHERE id = $1
+            "#,
+        )
+        .bind(link_id)
+        .bind(&candidate.metadata_json)
+        .bind(candidate.total_volumes)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+        // Diff + sync series metadata
+        series_changes = sync_series_with_diff(pool, library_id, series_name, candidate).await?;
+    }
+
+    // ── Book-level refresh ────────────────────────────────────────────────
+    let books = provider
+        .get_series_books(external_id, &config)
+        .await
+        .map_err(|e| format!("provider books error: {e}"))?;
+
+    // Delete existing external_book_metadata for this link
+    sqlx::query("DELETE FROM external_book_metadata WHERE link_id = $1")
+        .bind(link_id)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    // Pre-fetch local books
+    let local_books: Vec<(Uuid, Option<i32>, String)> = sqlx::query_as(
+        r#"
+        SELECT id, volume, title FROM books
+        WHERE library_id = $1
+          AND COALESCE(NULLIF(series, ''), 'unclassified') = $2
+        ORDER BY volume NULLS LAST,
+                 REGEXP_REPLACE(LOWER(title), '[0-9].*$', ''),
+                 COALESCE((REGEXP_MATCH(LOWER(title), '\d+'))[1]::int, 0),
+                 title ASC
+        "#,
+    )
+    .bind(library_id)
+    .bind(series_name)
+    .fetch_all(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    let local_books_with_pos: Vec<(Uuid, i32, String)> = local_books
+        .iter()
+        .enumerate()
+        .map(|(idx, (id, vol, title))| (*id, vol.unwrap_or((idx + 1) as i32), title.clone()))
+        .collect();
+
+    let mut matched_local_ids = std::collections::HashSet::new();
+
+    for (ext_idx, book) in books.iter().enumerate() {
+        let ext_vol = book.volume_number.unwrap_or((ext_idx + 1) as i32);
+
+        // Match by volume number
+        let mut local_book_id: Option<Uuid> = local_books_with_pos
+            .iter()
+            .find(|(id, v, _)| *v == ext_vol && !matched_local_ids.contains(id))
+            .map(|(id, _, _)| *id);
+
+        // Match by title containment
+        if local_book_id.is_none() {
+            let ext_title_lower = book.title.to_lowercase();
+            local_book_id = local_books_with_pos
+                .iter()
+                .find(|(id, _, local_title)| {
+                    if matched_local_ids.contains(id) {
+                        return false;
+                    }
+                    let local_lower = local_title.to_lowercase();
+                    local_lower.contains(&ext_title_lower) || ext_title_lower.contains(&local_lower)
+                })
+                .map(|(id, _, _)| *id);
+        }
+
+        if let Some(id) = local_book_id {
+            matched_local_ids.insert(id);
+        }
+
+        // Insert external_book_metadata
+        sqlx::query(
+            r#"
+            INSERT INTO external_book_metadata
+                (link_id, book_id, external_book_id, volume_number, title, authors, isbn, summary, cover_url, page_count, language, publish_date, metadata_json)
+            VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)
+            "#,
+        )
+        .bind(link_id)
+        .bind(local_book_id)
+        .bind(&book.external_book_id)
+        .bind(book.volume_number)
+        .bind(&book.title)
+        .bind(&book.authors)
+        .bind(&book.isbn)
+        .bind(&book.summary)
+        .bind(&book.cover_url)
+        .bind(book.page_count)
+        .bind(&book.language)
+        .bind(&book.publish_date)
+        .bind(&book.metadata_json)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+        // Diff + push metadata to matched local book
+        if let Some(book_id) = local_book_id {
+            let diffs = sync_book_with_diff(pool, book_id, book).await?;
+            if !diffs.is_empty() {
+                let local_title = local_books_with_pos
+                    .iter()
+                    .find(|(id, _, _)| *id == book_id)
+                    .map(|(_, _, t)| t.clone())
+                    .unwrap_or_default();
+                book_changes.push(BookDiff {
+                    book_id: book_id.to_string(),
+                    title: local_title,
+                    volume: book.volume_number,
+                    changes: diffs,
+                });
+            }
+        }
+    }
+
+    // Update synced_at on the link
+    sqlx::query("UPDATE external_metadata_links SET synced_at = NOW(), updated_at = NOW() WHERE id = $1")
+        .bind(link_id)
+        .execute(pool)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    let has_changes = !series_changes.is_empty() || !book_changes.is_empty();
+
+    Ok(SeriesRefreshResult {
+        series_name: series_name.to_string(),
+        provider: provider_name.to_string(),
+        status: if has_changes { "updated".to_string() } else { "unchanged".to_string() },
+        series_changes,
+        book_changes,
+        error: None,
+    })
+}
+
+// ---------------------------------------------------------------------------
+// Diff helpers
+// ---------------------------------------------------------------------------
+
+/// Compare old/new for a nullable string field. Returns Some(FieldDiff) only if value actually changed.
+fn diff_opt_str(field: &str, old: Option<&str>, new: Option<&str>) -> Option<FieldDiff> {
+    let new_val = new.filter(|s| !s.is_empty());
+    // Only report a change if there is a new non-empty value AND it differs from old
+    match (old, new_val) {
+        (Some(o), Some(n)) if o != n => Some(FieldDiff {
+            field: field.to_string(),
+            old: Some(serde_json::Value::String(o.to_string())),
+            new: Some(serde_json::Value::String(n.to_string())),
+        }),
+        (None, Some(n)) => Some(FieldDiff {
+            field: field.to_string(),
+            old: None,
+            new: Some(serde_json::Value::String(n.to_string())),
+        }),
+        _ => None,
+    }
+}
+
+fn diff_opt_i32(field: &str, old: Option<i32>, new: Option<i32>) -> Option<FieldDiff> {
+    match (old, new) {
+        (Some(o), Some(n)) if o != n => Some(FieldDiff {
+            field: field.to_string(),
+            old: Some(serde_json::json!(o)),
+            new: Some(serde_json::json!(n)),
+        }),
+        (None, Some(n)) => Some(FieldDiff {
+            field: field.to_string(),
+            old: None,
+            new: Some(serde_json::json!(n)),
+        }),
+        _ => None,
+    }
+}
+
+fn diff_str_vec(field: &str, old: &[String], new: &[String]) -> Option<FieldDiff> {
+    if new.is_empty() {
+        return None;
+    }
+    if old != new {
+        Some(FieldDiff {
+            field: field.to_string(),
+            old: Some(serde_json::json!(old)),
+            new: Some(serde_json::json!(new)),
+        })
+    } else {
+        None
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Series sync with diff tracking
+// ---------------------------------------------------------------------------
+
+async fn sync_series_with_diff(
+    pool: &PgPool,
+    library_id: Uuid,
+    series_name: &str,
+    candidate: &metadata_providers::SeriesCandidate,
+) -> Result<Vec<FieldDiff>, String> {
+    let new_description = candidate.metadata_json
+        .get("description")
+        .and_then(|d| d.as_str())
+        .or(candidate.description.as_deref());
+    let new_authors = &candidate.authors;
+    let new_publishers = &candidate.publishers;
+    let new_start_year = candidate.start_year;
+    let new_total_volumes = candidate.total_volumes;
+    let new_status = if let Some(raw) = candidate.metadata_json.get("status").and_then(|s| s.as_str()) {
+        Some(crate::metadata::normalize_series_status(pool, raw).await)
+    } else {
+        None
+    };
+    let new_status = new_status.as_deref();
+
+    // Fetch existing series metadata for diffing
+    let existing = sqlx::query(
+        r#"SELECT description, publishers, start_year, total_volumes, status, authors, locked_fields
+           FROM series_metadata WHERE library_id = $1 AND name = $2"#,
+    )
+    .bind(library_id)
+    .bind(series_name)
+    .fetch_optional(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    let locked = existing
+        .as_ref()
+        .map(|r| r.get::<serde_json::Value, _>("locked_fields"))
+        .unwrap_or(serde_json::json!({}));
+    let is_locked = |field: &str| -> bool {
+        locked.get(field).and_then(|v| v.as_bool()).unwrap_or(false)
+    };
+
+    // Build diffs (only for unlocked fields that actually change)
+    let mut diffs: Vec<FieldDiff> = Vec::new();
+
+    if !is_locked("description") {
+        let old_desc: Option<String> = existing.as_ref().and_then(|r| r.get("description"));
+        if let Some(d) = diff_opt_str("description", old_desc.as_deref(), new_description) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("authors") {
+        let old_authors: Vec<String> = existing.as_ref().map(|r| r.get("authors")).unwrap_or_default();
+        if let Some(d) = diff_str_vec("authors", &old_authors, new_authors) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("publishers") {
+        let old_publishers: Vec<String> = existing.as_ref().map(|r| r.get("publishers")).unwrap_or_default();
+        if let Some(d) = diff_str_vec("publishers", &old_publishers, new_publishers) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("start_year") {
+        let old_year: Option<i32> = existing.as_ref().and_then(|r| r.get("start_year"));
+        if let Some(d) = diff_opt_i32("start_year", old_year, new_start_year) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("total_volumes") {
+        let old_vols: Option<i32> = existing.as_ref().and_then(|r| r.get("total_volumes"));
+        if let Some(d) = diff_opt_i32("total_volumes", old_vols, new_total_volumes) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("status") {
+        let old_status: Option<String> = existing.as_ref().and_then(|r| r.get("status"));
+        if let Some(d) = diff_opt_str("status", old_status.as_deref(), new_status) {
+            diffs.push(d);
+        }
+    }
+
+    // Now do the actual upsert
+    sqlx::query(
+        r#"
+        INSERT INTO series_metadata (library_id, name, description, publishers, start_year, total_volumes, status, authors, created_at, updated_at)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, NOW(), NOW())
+        ON CONFLICT (library_id, name)
+        DO UPDATE SET
+            description = CASE
+                WHEN (series_metadata.locked_fields->>'description')::boolean IS TRUE THEN series_metadata.description
+                ELSE COALESCE(NULLIF(EXCLUDED.description, ''), series_metadata.description)
+            END,
+            publishers = CASE
+                WHEN (series_metadata.locked_fields->>'publishers')::boolean IS TRUE THEN series_metadata.publishers
+                WHEN array_length(EXCLUDED.publishers, 1) > 0 THEN EXCLUDED.publishers
+                ELSE series_metadata.publishers
+            END,
+            start_year = CASE
+                WHEN (series_metadata.locked_fields->>'start_year')::boolean IS TRUE THEN series_metadata.start_year
+                ELSE COALESCE(EXCLUDED.start_year, series_metadata.start_year)
+            END,
+            total_volumes = CASE
+                WHEN (series_metadata.locked_fields->>'total_volumes')::boolean IS TRUE THEN series_metadata.total_volumes
+                ELSE COALESCE(EXCLUDED.total_volumes, series_metadata.total_volumes)
+            END,
+            status = CASE
+                WHEN (series_metadata.locked_fields->>'status')::boolean IS TRUE THEN series_metadata.status
+                ELSE COALESCE(EXCLUDED.status, series_metadata.status)
+            END,
+            authors = CASE
+                WHEN (series_metadata.locked_fields->>'authors')::boolean IS TRUE THEN series_metadata.authors
+                WHEN array_length(EXCLUDED.authors, 1) > 0 THEN EXCLUDED.authors
+                ELSE series_metadata.authors
+            END,
+            updated_at = NOW()
+        "#,
+    )
+    .bind(library_id)
+    .bind(series_name)
+    .bind(new_description)
+    .bind(new_publishers)
+    .bind(new_start_year)
+    .bind(new_total_volumes)
+    .bind(new_status)
+    .bind(new_authors)
+    .execute(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    Ok(diffs)
+}
+
+// ---------------------------------------------------------------------------
+// Book sync with diff tracking
+// ---------------------------------------------------------------------------
+
+async fn sync_book_with_diff(
+    pool: &PgPool,
+    book_id: Uuid,
+    ext_book: &metadata_providers::BookCandidate,
+) -> Result<Vec<FieldDiff>, String> {
+    // Fetch current book state
+    let current = sqlx::query(
+        "SELECT summary, isbn, publish_date, language, authors, locked_fields FROM books WHERE id = $1",
+    )
+    .bind(book_id)
+    .fetch_one(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    let locked = current.get::<serde_json::Value, _>("locked_fields");
+    let is_locked = |field: &str| -> bool {
+        locked.get(field).and_then(|v| v.as_bool()).unwrap_or(false)
+    };
+
+    // Build diffs
+    let mut diffs: Vec<FieldDiff> = Vec::new();
+
+    if !is_locked("summary") {
+        let old: Option<String> = current.get("summary");
+        if let Some(d) = diff_opt_str("summary", old.as_deref(), ext_book.summary.as_deref()) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("isbn") {
+        let old: Option<String> = current.get("isbn");
+        if let Some(d) = diff_opt_str("isbn", old.as_deref(), ext_book.isbn.as_deref()) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("publish_date") {
+        let old: Option<String> = current.get("publish_date");
+        if let Some(d) = diff_opt_str("publish_date", old.as_deref(), ext_book.publish_date.as_deref()) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("language") {
+        let old: Option<String> = current.get("language");
+        if let Some(d) = diff_opt_str("language", old.as_deref(), ext_book.language.as_deref()) {
+            diffs.push(d);
+        }
+    }
+    if !is_locked("authors") {
+        let old: Vec<String> = current.get("authors");
+        if let Some(d) = diff_str_vec("authors", &old, &ext_book.authors) {
+            diffs.push(d);
+        }
+    }
+
+    // Do the actual update
+    sqlx::query(
+        r#"
+        UPDATE books SET
+            summary = CASE
+                WHEN (locked_fields->>'summary')::boolean IS TRUE THEN summary
+                ELSE COALESCE(NULLIF($2, ''), summary)
+            END,
+            isbn = CASE
+                WHEN (locked_fields->>'isbn')::boolean IS TRUE THEN isbn
+                ELSE COALESCE(NULLIF($3, ''), isbn)
+            END,
+            publish_date = CASE
+                WHEN (locked_fields->>'publish_date')::boolean IS TRUE THEN publish_date
+                ELSE COALESCE(NULLIF($4, ''), publish_date)
+            END,
+            language = CASE
+                WHEN (locked_fields->>'language')::boolean IS TRUE THEN language
+                ELSE COALESCE(NULLIF($5, ''), language)
+            END,
+            authors = CASE
+                WHEN (locked_fields->>'authors')::boolean IS TRUE THEN authors
+                WHEN CARDINALITY($6::text[]) > 0 THEN $6
+                ELSE authors
+            END,
+            author = CASE
+                WHEN (locked_fields->>'authors')::boolean IS TRUE THEN author
+                WHEN CARDINALITY($6::text[]) > 0 THEN $6[1]
+                ELSE author
+            END,
+            updated_at = NOW()
+        WHERE id = $1
+        "#,
+    )
+    .bind(book_id)
+    .bind(&ext_book.summary)
+    .bind(&ext_book.isbn)
+    .bind(&ext_book.publish_date)
+    .bind(&ext_book.language)
+    .bind(&ext_book.authors)
+    .execute(pool)
+    .await
+    .map_err(|e| e.to_string())?;
+
+    Ok(diffs)
+}
--- a/apps/api/src/openapi.rs
+++ b/apps/api/src/openapi.rs
@@ -10,14 +10,14 @@ use utoipa::OpenApi;
        crate::reading_progress::update_reading_progress,
        crate::reading_progress::mark_series_read,
        crate::books::get_thumbnail,
-        crate::books::list_series,
-        crate::books::list_all_series,
-        crate::books::ongoing_series,
-        crate::books::ongoing_books,
+        crate::series::list_series,
+        crate::series::list_all_series,
+        crate::series::ongoing_series,
+        crate::series::ongoing_books,
        crate::books::convert_book,
        crate::books::update_book,
-        crate::books::get_series_metadata,
-        crate::books::update_series,
+        crate::series::get_series_metadata,
+        crate::series::update_series,
        crate::pages::get_page,
        crate::search::search_books,
        crate::index_jobs::enqueue_rebuild,
@@ -35,10 +35,12 @@ use utoipa::OpenApi;
        crate::libraries::delete_library,
        crate::libraries::scan_library,
        crate::libraries::update_monitoring,
+        crate::libraries::update_metadata_provider,
        crate::tokens::list_tokens,
        crate::tokens::create_token,
        crate::tokens::revoke_token,
        crate::tokens::delete_token,
+        crate::authors::list_authors,
        crate::stats::get_stats,
        crate::settings::get_settings,
        crate::settings::get_setting,
@@ -46,6 +48,30 @@ use utoipa::OpenApi;
        crate::settings::clear_cache,
        crate::settings::get_cache_stats,
        crate::settings::get_thumbnail_stats,
+        crate::metadata::search_metadata,
+        crate::metadata::create_metadata_match,
+        crate::metadata::approve_metadata,
+        crate::metadata::reject_metadata,
+        crate::metadata::get_metadata_links,
+        crate::metadata::get_missing_books,
+        crate::metadata::delete_metadata_link,
+        crate::series::series_statuses,
+        crate::series::provider_statuses,
+        crate::settings::list_status_mappings,
+        crate::settings::upsert_status_mapping,
+        crate::settings::delete_status_mapping,
+        crate::prowlarr::search_prowlarr,
+        crate::prowlarr::test_prowlarr,
+        crate::qbittorrent::add_torrent,
+        crate::qbittorrent::test_qbittorrent,
+        crate::metadata_batch::start_batch,
+        crate::metadata_batch::get_batch_report,
+        crate::metadata_batch::get_batch_results,
+        crate::metadata_refresh::start_refresh,
+        crate::metadata_refresh::get_refresh_report,
+        crate::komga::sync_komga_read_books,
+        crate::komga::list_sync_reports,
+        crate::komga::get_sync_report,
    ),
    components(
        schemas(
@@ -57,14 +83,14 @@ use utoipa::OpenApi;
            crate::reading_progress::UpdateReadingProgressRequest,
            crate::reading_progress::MarkSeriesReadRequest,
            crate::reading_progress::MarkSeriesReadResponse,
-            crate::books::SeriesItem,
-            crate::books::SeriesPage,
-            crate::books::ListAllSeriesQuery,
-            crate::books::OngoingQuery,
+            crate::series::SeriesItem,
+            crate::series::SeriesPage,
+            crate::series::ListAllSeriesQuery,
+            crate::series::OngoingQuery,
            crate::books::UpdateBookRequest,
-            crate::books::SeriesMetadata,
-            crate::books::UpdateSeriesRequest,
-            crate::books::UpdateSeriesResponse,
+            crate::series::SeriesMetadata,
+            crate::series::UpdateSeriesRequest,
+            crate::series::UpdateSeriesResponse,
            crate::pages::PageQuery,
            crate::search::SearchQuery,
            crate::search::SearchResponse,
@@ -79,6 +105,7 @@ use utoipa::OpenApi;
            crate::libraries::LibraryResponse,
            crate::libraries::CreateLibraryRequest,
            crate::libraries::UpdateMonitoringRequest,
+            crate::libraries::UpdateMetadataProviderRequest,
            crate::tokens::CreateTokenRequest,
            crate::tokens::TokenResponse,
            crate::tokens::CreatedTokenResponse,
@@ -86,6 +113,11 @@ use utoipa::OpenApi;
            crate::settings::ClearCacheResponse,
            crate::settings::CacheStats,
            crate::settings::ThumbnailStats,
+            crate::settings::StatusMappingDto,
+            crate::settings::UpsertStatusMappingRequest,
+            crate::authors::ListAuthorsQuery,
+            crate::authors::AuthorItem,
+            crate::authors::AuthorsPageResponse,
            crate::stats::StatsResponse,
            crate::stats::StatsOverview,
            crate::stats::ReadingStatusStats,
@@ -94,6 +126,37 @@ use utoipa::OpenApi;
            crate::stats::LibraryStats,
            crate::stats::TopSeries,
            crate::stats::MonthlyAdditions,
+            crate::stats::MetadataStats,
+            crate::stats::ProviderCount,
+            crate::metadata::ApproveRequest,
+            crate::metadata::ApproveResponse,
+            crate::metadata::SyncReport,
+            crate::metadata::SeriesSyncReport,
+            crate::metadata::BookSyncReport,
+            crate::metadata::FieldChange,
+            crate::metadata::MetadataSearchRequest,
+            crate::metadata::SeriesCandidateDto,
+            crate::metadata::MetadataMatchRequest,
+            crate::metadata::ExternalMetadataLinkDto,
+            crate::metadata::MissingBooksDto,
+            crate::metadata::MissingBookItem,
+            crate::qbittorrent::QBittorrentAddRequest,
+            crate::qbittorrent::QBittorrentAddResponse,
+            crate::qbittorrent::QBittorrentTestResponse,
+            crate::prowlarr::ProwlarrSearchRequest,
+            crate::prowlarr::ProwlarrRelease,
+            crate::prowlarr::ProwlarrCategory,
+            crate::prowlarr::ProwlarrSearchResponse,
+            crate::prowlarr::MissingVolumeInput,
+            crate::prowlarr::ProwlarrTestResponse,
+            crate::metadata_batch::MetadataBatchRequest,
+            crate::metadata_batch::MetadataBatchReportDto,
+            crate::metadata_batch::MetadataBatchResultDto,
+            crate::metadata_refresh::MetadataRefreshRequest,
+            crate::metadata_refresh::MetadataRefreshReportDto,
+            crate::komga::KomgaSyncRequest,
+            crate::komga::KomgaSyncResponse,
+            crate::komga::KomgaSyncReportSummary,
            ErrorResponse,
        )
    ),
@@ -101,12 +164,20 @@ use utoipa::OpenApi;
        ("Bearer" = [])
    ),
    tags(
-        (name = "books", description = "Read-only endpoints for browsing and searching books"),
+        (name = "books", description = "Book browsing, details and management"),
+        (name = "series", description = "Series browsing, filtering and management"),
+        (name = "search", description = "Full-text search across books and series"),
        (name = "reading-progress", description = "Reading progress tracking per book"),
-        (name = "libraries", description = "Library management endpoints (Admin only)"),
+        (name = "authors", description = "Author browsing and listing"),
+        (name = "stats", description = "Collection statistics and dashboard data"),
+        (name = "libraries", description = "Library listing, scanning, and management (create/delete/settings: Admin only)"),
        (name = "indexing", description = "Search index management and job control (Admin only)"),
+        (name = "metadata", description = "External metadata providers and matching (Admin only)"),
+        (name = "komga", description = "Komga read-status sync (Admin only)"),
        (name = "tokens", description = "API token management (Admin only)"),
        (name = "settings", description = "Application settings and cache management (Admin only)"),
+        (name = "prowlarr", description = "Prowlarr indexer integration (Admin only)"),
+        (name = "qbittorrent", description = "qBittorrent download client integration (Admin only)"),
    ),
    modifiers(&SecurityAddon)
 )]
--- a/apps/api/src/pages.rs
+++ b/apps/api/src/pages.rs
@@ -277,7 +277,17 @@ pub async fn get_page(
                let cache_dir2 = cache_dir_path.clone();
                let format2 = format;
                tokio::spawn(async move {
-                    prefetch_page(state2, book_id, &abs_path2, next_page, format2, quality, width, filter, timeout_secs, &cache_dir2).await;
+                    prefetch_page(state2, &PrefetchParams {
+                        book_id,
+                        abs_path: &abs_path2,
+                        page: next_page,
+                        format: format2,
+                        quality,
+                        width,
+                        filter,
+                        timeout_secs,
+                        cache_dir: &cache_dir2,
+                    }).await;
                });
            }

@@ -290,19 +300,30 @@ pub async fn get_page(
    }
 }

-/// Prefetch a single page into disk+memory cache (best-effort, ignores errors).
-async fn prefetch_page(
-    state: AppState,
+struct PrefetchParams<'a> {
    book_id: Uuid,
-    abs_path: &str,
+    abs_path: &'a str,
    page: u32,
    format: OutputFormat,
    quality: u8,
    width: u32,
    filter: image::imageops::FilterType,
    timeout_secs: u64,
-    cache_dir: &Path,
-) {
+    cache_dir: &'a Path,
+}
+
+/// Prefetch a single page into disk+memory cache (best-effort, ignores errors).
+async fn prefetch_page(state: AppState, params: &PrefetchParams<'_>) {
+    let book_id = params.book_id;
+    let page = params.page;
+    let format = params.format;
+    let quality = params.quality;
+    let width = params.width;
+    let filter = params.filter;
+    let timeout_secs = params.timeout_secs;
+    let abs_path = params.abs_path;
+    let cache_dir = params.cache_dir;
+
    let mem_key = format!("{book_id}:{page}:{}:{quality}:{width}", format.extension());
    // Already in memory cache?
    if state.page_cache.lock().await.contains(&mem_key) {
@@ -330,6 +351,7 @@ async fn prefetch_page(
        Some(ref e) if e == "cbz" => "cbz",
        Some(ref e) if e == "cbr" => "cbr",
        Some(ref e) if e == "pdf" => "pdf",
+        Some(ref e) if e == "epub" => "epub",
        _ => return,
    }
    .to_string();
@@ -458,6 +480,7 @@ fn render_page(
        "cbz" => parsers::BookFormat::Cbz,
        "cbr" => parsers::BookFormat::Cbr,
        "pdf" => parsers::BookFormat::Pdf,
+        "epub" => parsers::BookFormat::Epub,
        _ => return Err(ApiError::bad_request("unsupported source format")),
    };

--- a/apps/api/src/prowlarr.rs
+++ b/apps/api/src/prowlarr.rs
@@ -0,0 +1,363 @@
+use axum::{extract::State, Json};
+use serde::{Deserialize, Serialize};
+use sqlx::Row;
+use utoipa::ToSchema;
+
+use crate::{error::ApiError, state::AppState};
+
+// ─── Types ──────────────────────────────────────────────────────────────────
+
+#[derive(Deserialize, ToSchema)]
+pub struct MissingVolumeInput {
+    pub volume_number: Option<i32>,
+    #[allow(dead_code)]
+    pub title: Option<String>,
+}
+
+#[derive(Deserialize, ToSchema)]
+pub struct ProwlarrSearchRequest {
+    pub series_name: String,
+    pub volume_number: Option<i32>,
+    pub custom_query: Option<String>,
+    pub missing_volumes: Option<Vec<MissingVolumeInput>>,
+}
+
+#[derive(Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ProwlarrRawRelease {
+    pub guid: String,
+    pub title: String,
+    pub size: i64,
+    pub download_url: Option<String>,
+    pub indexer: Option<String>,
+    pub seeders: Option<i32>,
+    pub leechers: Option<i32>,
+    pub publish_date: Option<String>,
+    pub protocol: Option<String>,
+    pub info_url: Option<String>,
+    pub categories: Option<Vec<ProwlarrCategory>>,
+}
+
+#[derive(Serialize, ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ProwlarrRelease {
+    pub guid: String,
+    pub title: String,
+    pub size: i64,
+    pub download_url: Option<String>,
+    pub indexer: Option<String>,
+    pub seeders: Option<i32>,
+    pub leechers: Option<i32>,
+    pub publish_date: Option<String>,
+    pub protocol: Option<String>,
+    pub info_url: Option<String>,
+    pub categories: Option<Vec<ProwlarrCategory>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub matched_missing_volumes: Option<Vec<i32>>,
+}
+
+#[derive(Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ProwlarrCategory {
+    pub id: i32,
+    pub name: Option<String>,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct ProwlarrSearchResponse {
+    pub results: Vec<ProwlarrRelease>,
+    pub query: String,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct ProwlarrTestResponse {
+    pub success: bool,
+    pub message: String,
+    pub indexer_count: Option<i32>,
+}
+
+// ─── Config helper ──────────────────────────────────────────────────────────
+
+#[derive(Deserialize)]
+struct ProwlarrConfig {
+    url: String,
+    api_key: String,
+    categories: Option<Vec<i32>>,
+}
+
+async fn load_prowlarr_config(
+    pool: &sqlx::PgPool,
+) -> Result<(String, String, Vec<i32>), ApiError> {
+    let row = sqlx::query("SELECT value FROM app_settings WHERE key = 'prowlarr'")
+        .fetch_optional(pool)
+        .await?;
+
+    let row = row.ok_or_else(|| ApiError::bad_request("Prowlarr is not configured"))?;
+    let value: serde_json::Value = row.get("value");
+    let config: ProwlarrConfig = serde_json::from_value(value)
+        .map_err(|e| ApiError::internal(format!("invalid prowlarr config: {e}")))?;
+
+    if config.url.is_empty() || config.api_key.is_empty() {
+        return Err(ApiError::bad_request(
+            "Prowlarr URL and API key must be configured in settings",
+        ));
+    }
+
+    let url = config.url.trim_end_matches('/').to_string();
+    let categories = config.categories.unwrap_or_else(|| vec![7030, 7020]);
+
+    Ok((url, config.api_key, categories))
+}
+
+// ─── Volume matching ─────────────────────────────────────────────────────────
+
+/// Extract volume numbers from a release title.
+/// Looks for patterns like: T01, Tome 01, Vol. 01, v01, #01,
+/// or standalone numbers that appear after common separators.
+fn extract_volumes_from_title(title: &str) -> Vec<i32> {
+    let lower = title.to_lowercase();
+    let mut volumes = Vec::new();
+
+    // Patterns: T01, Tome 01, Tome01, Vol 01, Vol.01, v01, #01
+    let prefixes = ["tome", "vol.", "vol ", "t", "v", "#"];
+    let chars: Vec<char> = lower.chars().collect();
+    let len = chars.len();
+
+    for prefix in &prefixes {
+        let mut start = 0;
+        while let Some(pos) = lower[start..].find(prefix) {
+            let abs_pos = start + pos;
+            let after = abs_pos + prefix.len();
+
+            // For single-char prefixes (t, v, #), ensure it's at a word boundary
+            if prefix.len() == 1 && *prefix != "#" {
+                if abs_pos > 0 && chars[abs_pos - 1].is_alphanumeric() {
+                    start = after;
+                    continue;
+                }
+            }
+
+            // Skip optional spaces after prefix
+            let mut i = after;
+            while i < len && chars[i] == ' ' {
+                i += 1;
+            }
+
+            // Read digits
+            let digit_start = i;
+            while i < len && chars[i].is_ascii_digit() {
+                i += 1;
+            }
+
+            if i > digit_start {
+                if let Ok(num) = lower[digit_start..i].parse::<i32>() {
+                    if !volumes.contains(&num) {
+                        volumes.push(num);
+                    }
+                }
+            }
+
+            start = after;
+        }
+    }
+
+    volumes
+}
+
+/// Match releases against missing volume numbers.
+fn match_missing_volumes(
+    releases: Vec<ProwlarrRawRelease>,
+    missing: &[MissingVolumeInput],
+) -> Vec<ProwlarrRelease> {
+    let missing_numbers: Vec<i32> = missing
+        .iter()
+        .filter_map(|m| m.volume_number)
+        .collect();
+
+    releases
+        .into_iter()
+        .map(|r| {
+            let matched = if missing_numbers.is_empty() {
+                None
+            } else {
+                let title_volumes = extract_volumes_from_title(&r.title);
+                let matched: Vec<i32> = title_volumes
+                    .into_iter()
+                    .filter(|v| missing_numbers.contains(v))
+                    .collect();
+                if matched.is_empty() {
+                    None
+                } else {
+                    Some(matched)
+                }
+            };
+
+            ProwlarrRelease {
+                guid: r.guid,
+                title: r.title,
+                size: r.size,
+                download_url: r.download_url,
+                indexer: r.indexer,
+                seeders: r.seeders,
+                leechers: r.leechers,
+                publish_date: r.publish_date,
+                protocol: r.protocol,
+                info_url: r.info_url,
+                categories: r.categories,
+                matched_missing_volumes: matched,
+            }
+        })
+        .collect()
+}
+
+// ─── Handlers ───────────────────────────────────────────────────────────────
+
+/// Search for releases on Prowlarr
+#[utoipa::path(
+    post,
+    path = "/prowlarr/search",
+    tag = "prowlarr",
+    request_body = ProwlarrSearchRequest,
+    responses(
+        (status = 200, body = ProwlarrSearchResponse),
+        (status = 400, description = "Bad request or Prowlarr not configured"),
+        (status = 401, description = "Unauthorized"),
+        (status = 500, description = "Prowlarr connection error"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn search_prowlarr(
+    State(state): State<AppState>,
+    Json(body): Json<ProwlarrSearchRequest>,
+) -> Result<Json<ProwlarrSearchResponse>, ApiError> {
+    let (url, api_key, categories) = load_prowlarr_config(&state.pool).await?;
+
+    let query = if let Some(custom) = &body.custom_query {
+        custom.clone()
+    } else if let Some(vol) = body.volume_number {
+        format!("\"{}\" {}", body.series_name, vol)
+    } else {
+        format!("\"{}\"", body.series_name)
+    };
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(30))
+        .build()
+        .map_err(|e| ApiError::internal(format!("failed to build HTTP client: {e}")))?;
+
+    let mut params: Vec<(&str, String)> = vec![
+        ("query", query.clone()),
+        ("type", "search".to_string()),
+    ];
+    for cat in &categories {
+        params.push(("categories", cat.to_string()));
+    }
+
+    let resp = client
+        .get(format!("{url}/api/v1/search"))
+        .query(&params)
+        .header("X-Api-Key", &api_key)
+        .send()
+        .await
+        .map_err(|e| ApiError::internal(format!("Prowlarr request failed: {e}")))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(ApiError::internal(format!(
+            "Prowlarr returned {status}: {text}"
+        )));
+    }
+
+    let raw_text = resp
+        .text()
+        .await
+        .map_err(|e| ApiError::internal(format!("Failed to read Prowlarr response: {e}")))?;
+
+    tracing::debug!("Prowlarr raw response length: {} chars", raw_text.len());
+
+    let raw_releases: Vec<ProwlarrRawRelease> = serde_json::from_str(&raw_text)
+        .map_err(|e| {
+            tracing::error!("Failed to parse Prowlarr response: {e}");
+            tracing::error!("Raw response (first 500 chars): {}", &raw_text[..raw_text.len().min(500)]);
+            ApiError::internal(format!("Failed to parse Prowlarr response: {e}"))
+        })?;
+
+    let results = if let Some(missing) = &body.missing_volumes {
+        match_missing_volumes(raw_releases, missing)
+    } else {
+        raw_releases
+            .into_iter()
+            .map(|r| ProwlarrRelease {
+                guid: r.guid,
+                title: r.title,
+                size: r.size,
+                download_url: r.download_url,
+                indexer: r.indexer,
+                seeders: r.seeders,
+                leechers: r.leechers,
+                publish_date: r.publish_date,
+                protocol: r.protocol,
+                info_url: r.info_url,
+                categories: r.categories,
+                matched_missing_volumes: None,
+            })
+            .collect()
+    };
+
+    Ok(Json(ProwlarrSearchResponse { results, query }))
+}
+
+/// Test connection to Prowlarr
+#[utoipa::path(
+    get,
+    path = "/prowlarr/test",
+    tag = "prowlarr",
+    responses(
+        (status = 200, body = ProwlarrTestResponse),
+        (status = 400, description = "Prowlarr not configured"),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn test_prowlarr(
+    State(state): State<AppState>,
+) -> Result<Json<ProwlarrTestResponse>, ApiError> {
+    let (url, api_key, _categories) = load_prowlarr_config(&state.pool).await?;
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(10))
+        .build()
+        .map_err(|e| ApiError::internal(format!("failed to build HTTP client: {e}")))?;
+
+    let resp = client
+        .get(format!("{url}/api/v1/indexer"))
+        .header("X-Api-Key", &api_key)
+        .send()
+        .await;
+
+    match resp {
+        Ok(r) if r.status().is_success() => {
+            let indexers: Vec<serde_json::Value> = r.json().await.unwrap_or_default();
+            Ok(Json(ProwlarrTestResponse {
+                success: true,
+                message: format!("Connected successfully ({} indexers)", indexers.len()),
+                indexer_count: Some(indexers.len() as i32),
+            }))
+        }
+        Ok(r) => {
+            let status = r.status();
+            let text = r.text().await.unwrap_or_default();
+            Ok(Json(ProwlarrTestResponse {
+                success: false,
+                message: format!("Prowlarr returned {status}: {text}"),
+                indexer_count: None,
+            }))
+        }
+        Err(e) => Ok(Json(ProwlarrTestResponse {
+            success: false,
+            message: format!("Connection failed: {e}"),
+            indexer_count: None,
+        })),
+    }
+}
--- a/apps/api/src/qbittorrent.rs
+++ b/apps/api/src/qbittorrent.rs
@@ -0,0 +1,218 @@
+use axum::{extract::State, Json};
+use serde::{Deserialize, Serialize};
+use sqlx::Row;
+use utoipa::ToSchema;
+
+use crate::{error::ApiError, state::AppState};
+
+// ─── Types ──────────────────────────────────────────────────────────────────
+
+#[derive(Deserialize, ToSchema)]
+pub struct QBittorrentAddRequest {
+    pub url: String,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct QBittorrentAddResponse {
+    pub success: bool,
+    pub message: String,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct QBittorrentTestResponse {
+    pub success: bool,
+    pub message: String,
+    pub version: Option<String>,
+}
+
+// ─── Config helper ──────────────────────────────────────────────────────────
+
+#[derive(Deserialize)]
+struct QBittorrentConfig {
+    url: String,
+    username: String,
+    password: String,
+}
+
+async fn load_qbittorrent_config(
+    pool: &sqlx::PgPool,
+) -> Result<(String, String, String), ApiError> {
+    let row = sqlx::query("SELECT value FROM app_settings WHERE key = 'qbittorrent'")
+        .fetch_optional(pool)
+        .await?;
+
+    let row = row.ok_or_else(|| ApiError::bad_request("qBittorrent is not configured"))?;
+    let value: serde_json::Value = row.get("value");
+    let config: QBittorrentConfig = serde_json::from_value(value)
+        .map_err(|e| ApiError::internal(format!("invalid qbittorrent config: {e}")))?;
+
+    if config.url.is_empty() || config.username.is_empty() {
+        return Err(ApiError::bad_request(
+            "qBittorrent URL and username must be configured in settings",
+        ));
+    }
+
+    let url = config.url.trim_end_matches('/').to_string();
+    Ok((url, config.username, config.password))
+}
+
+// ─── Login helper ───────────────────────────────────────────────────────────
+
+async fn qbittorrent_login(
+    client: &reqwest::Client,
+    base_url: &str,
+    username: &str,
+    password: &str,
+) -> Result<String, ApiError> {
+    let resp = client
+        .post(format!("{base_url}/api/v2/auth/login"))
+        .form(&[("username", username), ("password", password)])
+        .send()
+        .await
+        .map_err(|e| ApiError::internal(format!("qBittorrent login request failed: {e}")))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        return Err(ApiError::internal(format!(
+            "qBittorrent login failed ({status}): {text}"
+        )));
+    }
+
+    // Extract SID from Set-Cookie header
+    let cookie_header = resp
+        .headers()
+        .get("set-cookie")
+        .and_then(|v| v.to_str().ok())
+        .unwrap_or("");
+
+    let sid = cookie_header
+        .split(';')
+        .next()
+        .and_then(|s| s.strip_prefix("SID="))
+        .ok_or_else(|| ApiError::internal("Failed to get SID cookie from qBittorrent"))?
+        .to_string();
+
+    Ok(sid)
+}
+
+// ─── Handlers ───────────────────────────────────────────────────────────────
+
+/// Add a torrent to qBittorrent
+#[utoipa::path(
+    post,
+    path = "/qbittorrent/add",
+    tag = "qbittorrent",
+    request_body = QBittorrentAddRequest,
+    responses(
+        (status = 200, body = QBittorrentAddResponse),
+        (status = 400, description = "Bad request or qBittorrent not configured"),
+        (status = 401, description = "Unauthorized"),
+        (status = 500, description = "qBittorrent connection error"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn add_torrent(
+    State(state): State<AppState>,
+    Json(body): Json<QBittorrentAddRequest>,
+) -> Result<Json<QBittorrentAddResponse>, ApiError> {
+    if body.url.is_empty() {
+        return Err(ApiError::bad_request("url is required"));
+    }
+
+    let (base_url, username, password) = load_qbittorrent_config(&state.pool).await?;
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(10))
+        .build()
+        .map_err(|e| ApiError::internal(format!("failed to build HTTP client: {e}")))?;
+
+    let sid = qbittorrent_login(&client, &base_url, &username, &password).await?;
+
+    let resp = client
+        .post(format!("{base_url}/api/v2/torrents/add"))
+        .header("Cookie", format!("SID={sid}"))
+        .form(&[("urls", &body.url)])
+        .send()
+        .await
+        .map_err(|e| ApiError::internal(format!("qBittorrent add request failed: {e}")))?;
+
+    if resp.status().is_success() {
+        Ok(Json(QBittorrentAddResponse {
+            success: true,
+            message: "Torrent added to qBittorrent".to_string(),
+        }))
+    } else {
+        let status = resp.status();
+        let text = resp.text().await.unwrap_or_default();
+        Ok(Json(QBittorrentAddResponse {
+            success: false,
+            message: format!("qBittorrent returned {status}: {text}"),
+        }))
+    }
+}
+
+/// Test connection to qBittorrent
+#[utoipa::path(
+    get,
+    path = "/qbittorrent/test",
+    tag = "qbittorrent",
+    responses(
+        (status = 200, body = QBittorrentTestResponse),
+        (status = 400, description = "qBittorrent not configured"),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn test_qbittorrent(
+    State(state): State<AppState>,
+) -> Result<Json<QBittorrentTestResponse>, ApiError> {
+    let (base_url, username, password) = load_qbittorrent_config(&state.pool).await?;
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(10))
+        .build()
+        .map_err(|e| ApiError::internal(format!("failed to build HTTP client: {e}")))?;
+
+    let sid = match qbittorrent_login(&client, &base_url, &username, &password).await {
+        Ok(sid) => sid,
+        Err(e) => {
+            return Ok(Json(QBittorrentTestResponse {
+                success: false,
+                message: format!("Login failed: {}", e.message),
+                version: None,
+            }));
+        }
+    };
+
+    let resp = client
+        .get(format!("{base_url}/api/v2/app/version"))
+        .header("Cookie", format!("SID={sid}"))
+        .send()
+        .await;
+
+    match resp {
+        Ok(r) if r.status().is_success() => {
+            let version = r.text().await.unwrap_or_default();
+            Ok(Json(QBittorrentTestResponse {
+                success: true,
+                message: format!("Connected successfully ({})", version.trim()),
+                version: Some(version.trim().to_string()),
+            }))
+        }
+        Ok(r) => {
+            let status = r.status();
+            let text = r.text().await.unwrap_or_default();
+            Ok(Json(QBittorrentTestResponse {
+                success: false,
+                message: format!("qBittorrent returned {status}: {text}"),
+                version: None,
+            }))
+        }
+        Err(e) => Ok(Json(QBittorrentTestResponse {
+            success: false,
+            message: format!("Connection failed: {e}"),
+            version: None,
+        })),
+    }
+}
--- a/apps/api/src/search.rs
+++ b/apps/api/src/search.rs
@@ -43,11 +43,11 @@ pub struct SearchResponse {
 #[utoipa::path(
    get,
    path = "/search",
-    tag = "books",
+    tag = "search",
    params(
        ("q" = String, Query, description = "Search query (books + series via PostgreSQL full-text)"),
        ("library_id" = Option<String>, Query, description = "Filter by library ID"),
-        ("type" = Option<String>, Query, description = "Filter by type (cbz, cbr, pdf)"),
+        ("type" = Option<String>, Query, description = "Filter by type (cbz, cbr, pdf, epub)"),
        ("kind" = Option<String>, Query, description = "Filter by kind (alias for type)"),
        ("limit" = Option<usize>, Query, description = "Max results per type (max 100)"),
    ),
--- a/apps/api/src/series.rs
+++ b/apps/api/src/series.rs
--- a/apps/api/src/settings.rs
+++ b/apps/api/src/settings.rs
@@ -1,11 +1,12 @@
 use axum::{
-    extract::State,
-    routing::{get, post},
+    extract::{Path as AxumPath, State},
+    routing::{delete, get, post},
    Json, Router,
 };
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use sqlx::Row;
+use uuid::Uuid;
 use utoipa::ToSchema;

 use crate::{error::ApiError, state::{AppState, load_dynamic_settings}};
@@ -42,6 +43,14 @@ pub fn settings_routes() -> Router<AppState> {
        .route("/settings/cache/clear", post(clear_cache))
        .route("/settings/cache/stats", get(get_cache_stats))
        .route("/settings/thumbnail/stats", get(get_thumbnail_stats))
+        .route(
+            "/settings/status-mappings",
+            get(list_status_mappings).post(upsert_status_mapping),
+        )
+        .route(
+            "/settings/status-mappings/:id",
+            delete(delete_status_mapping),
+        )
 }

 /// List all settings
@@ -324,3 +333,125 @@ pub async fn get_thumbnail_stats(State(_state): State<AppState>) -> Result<Json<

    Ok(Json(stats))
 }
+
+// ---------------------------------------------------------------------------
+// Status Mappings
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct StatusMappingDto {
+    pub id: String,
+    pub provider_status: String,
+    pub mapped_status: Option<String>,
+}
+
+#[derive(Debug, Clone, Deserialize, ToSchema)]
+pub struct UpsertStatusMappingRequest {
+    pub provider_status: String,
+    pub mapped_status: String,
+}
+
+/// List all status mappings
+#[utoipa::path(
+    get,
+    path = "/settings/status-mappings",
+    tag = "settings",
+    responses(
+        (status = 200, body = Vec<StatusMappingDto>),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn list_status_mappings(
+    State(state): State<AppState>,
+) -> Result<Json<Vec<StatusMappingDto>>, ApiError> {
+    let rows = sqlx::query(
+        "SELECT id, provider_status, mapped_status FROM status_mappings ORDER BY mapped_status NULLS LAST, provider_status",
+    )
+    .fetch_all(&state.pool)
+    .await?;
+
+    let mappings = rows
+        .iter()
+        .map(|row| StatusMappingDto {
+            id: row.get::<Uuid, _>("id").to_string(),
+            provider_status: row.get("provider_status"),
+            mapped_status: row.get::<Option<String>, _>("mapped_status"),
+        })
+        .collect();
+
+    Ok(Json(mappings))
+}
+
+/// Create or update a status mapping
+#[utoipa::path(
+    post,
+    path = "/settings/status-mappings",
+    tag = "settings",
+    request_body = UpsertStatusMappingRequest,
+    responses(
+        (status = 200, body = StatusMappingDto),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn upsert_status_mapping(
+    State(state): State<AppState>,
+    Json(body): Json<UpsertStatusMappingRequest>,
+) -> Result<Json<StatusMappingDto>, ApiError> {
+    let provider_status = body.provider_status.to_lowercase();
+
+    let row = sqlx::query(
+        r#"
+        INSERT INTO status_mappings (provider_status, mapped_status)
+        VALUES ($1, $2)
+        ON CONFLICT (provider_status)
+        DO UPDATE SET mapped_status = $2, updated_at = NOW()
+        RETURNING id, provider_status, mapped_status
+        "#,
+    )
+    .bind(&provider_status)
+    .bind(&body.mapped_status)
+    .fetch_one(&state.pool)
+    .await?;
+
+    Ok(Json(StatusMappingDto {
+        id: row.get::<Uuid, _>("id").to_string(),
+        provider_status: row.get("provider_status"),
+        mapped_status: row.get::<Option<String>, _>("mapped_status"),
+    }))
+}
+
+/// Unmap a status mapping (sets mapped_status to NULL, keeps the provider status known)
+#[utoipa::path(
+    delete,
+    path = "/settings/status-mappings/{id}",
+    tag = "settings",
+    params(("id" = String, Path, description = "Mapping UUID")),
+    responses(
+        (status = 200, body = StatusMappingDto),
+        (status = 401, description = "Unauthorized"),
+        (status = 404, description = "Not found"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn delete_status_mapping(
+    State(state): State<AppState>,
+    AxumPath(id): AxumPath<Uuid>,
+) -> Result<Json<StatusMappingDto>, ApiError> {
+    let row = sqlx::query(
+        "UPDATE status_mappings SET mapped_status = NULL, updated_at = NOW() WHERE id = $1 RETURNING id, provider_status, mapped_status",
+    )
+    .bind(id)
+    .fetch_optional(&state.pool)
+    .await?;
+
+    match row {
+        Some(row) => Ok(Json(StatusMappingDto {
+            id: row.get::<Uuid, _>("id").to_string(),
+            provider_status: row.get("provider_status"),
+            mapped_status: row.get::<Option<String>, _>("mapped_status"),
+        })),
+        None => Err(ApiError::not_found("status mapping not found")),
+    }
+}
--- a/apps/api/src/stats.rs
+++ b/apps/api/src/stats.rs
@@ -1,10 +1,19 @@
-use axum::{extract::State, Json};
-use serde::Serialize;
+use axum::{
+    extract::{Query, State},
+    Json,
+};
+use serde::{Deserialize, Serialize};
 use sqlx::Row;
-use utoipa::ToSchema;
+use utoipa::{IntoParams, ToSchema};

 use crate::{error::ApiError, state::AppState};

+#[derive(Deserialize, IntoParams)]
+pub struct StatsQuery {
+    /// Granularity: "day", "week" or "month" (default: "month")
+    pub period: Option<String>,
+}
+
 #[derive(Serialize, ToSchema)]
 pub struct StatsOverview {
    pub total_books: i64,
@@ -58,22 +67,76 @@ pub struct MonthlyAdditions {
    pub books_added: i64,
 }

+#[derive(Serialize, ToSchema)]
+pub struct MetadataStats {
+    pub total_series: i64,
+    pub series_linked: i64,
+    pub series_unlinked: i64,
+    pub books_with_summary: i64,
+    pub books_with_isbn: i64,
+    pub by_provider: Vec<ProviderCount>,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct ProviderCount {
+    pub provider: String,
+    pub count: i64,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct CurrentlyReadingItem {
+    pub book_id: String,
+    pub title: String,
+    pub series: Option<String>,
+    pub current_page: i32,
+    pub page_count: i32,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct RecentlyReadItem {
+    pub book_id: String,
+    pub title: String,
+    pub series: Option<String>,
+    pub last_read_at: String,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct MonthlyReading {
+    pub month: String,
+    pub books_read: i64,
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct JobTimePoint {
+    pub label: String,
+    pub scan: i64,
+    pub rebuild: i64,
+    pub thumbnail: i64,
+    pub other: i64,
+}
+
 #[derive(Serialize, ToSchema)]
 pub struct StatsResponse {
    pub overview: StatsOverview,
    pub reading_status: ReadingStatusStats,
+    pub currently_reading: Vec<CurrentlyReadingItem>,
+    pub recently_read: Vec<RecentlyReadItem>,
+    pub reading_over_time: Vec<MonthlyReading>,
    pub by_format: Vec<FormatCount>,
    pub by_language: Vec<LanguageCount>,
    pub by_library: Vec<LibraryStats>,
    pub top_series: Vec<TopSeries>,
    pub additions_over_time: Vec<MonthlyAdditions>,
+    pub jobs_over_time: Vec<JobTimePoint>,
+    pub metadata: MetadataStats,
 }

 /// Get collection statistics for the dashboard
 #[utoipa::path(
    get,
    path = "/stats",
-    tag = "books",
+    tag = "stats",
+    params(StatsQuery),
    responses(
        (status = 200, body = StatsResponse),
        (status = 401, description = "Unauthorized"),
@@ -82,7 +145,9 @@ pub struct StatsResponse {
 )]
 pub async fn get_stats(
    State(state): State<AppState>,
+    Query(query): Query<StatsQuery>,
 ) -> Result<Json<StatsResponse>, ApiError> {
+    let period = query.period.as_deref().unwrap_or("month");
    // Overview + reading status in one query
    let overview_row = sqlx::query(
        r#"
@@ -242,20 +307,74 @@ pub async fn get_stats(
        })
        .collect();

-    // Additions over time (last 12 months)
-    let additions_rows = sqlx::query(
-        r#"
-        SELECT
-            TO_CHAR(DATE_TRUNC('month', created_at), 'YYYY-MM') AS month,
-            COUNT(*) AS books_added
-        FROM books
-        WHERE created_at >= DATE_TRUNC('month', NOW()) - INTERVAL '11 months'
-        GROUP BY DATE_TRUNC('month', created_at)
-        ORDER BY month ASC
-        "#,
-    )
-    .fetch_all(&state.pool)
-    .await?;
+    // Additions over time (with gap filling)
+    let additions_rows = match period {
+        "day" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS month,
+                    COALESCE(cnt.books_added, 0) AS books_added
+                FROM generate_series(CURRENT_DATE - INTERVAL '6 days', CURRENT_DATE, '1 day') AS d(dt)
+                LEFT JOIN (
+                    SELECT created_at::date AS dt, COUNT(*) AS books_added
+                    FROM books
+                    WHERE created_at >= CURRENT_DATE - INTERVAL '6 days'
+                    GROUP BY created_at::date
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        "week" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS month,
+                    COALESCE(cnt.books_added, 0) AS books_added
+                FROM generate_series(
+                    DATE_TRUNC('week', NOW() - INTERVAL '2 months'),
+                    DATE_TRUNC('week', NOW()),
+                    '1 week'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT DATE_TRUNC('week', created_at) AS dt, COUNT(*) AS books_added
+                    FROM books
+                    WHERE created_at >= DATE_TRUNC('week', NOW() - INTERVAL '2 months')
+                    GROUP BY DATE_TRUNC('week', created_at)
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        _ => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM') AS month,
+                    COALESCE(cnt.books_added, 0) AS books_added
+                FROM generate_series(
+                    DATE_TRUNC('month', NOW()) - INTERVAL '11 months',
+                    DATE_TRUNC('month', NOW()),
+                    '1 month'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT DATE_TRUNC('month', created_at) AS dt, COUNT(*) AS books_added
+                    FROM books
+                    WHERE created_at >= DATE_TRUNC('month', NOW()) - INTERVAL '11 months'
+                    GROUP BY DATE_TRUNC('month', created_at)
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+    };

    let additions_over_time: Vec<MonthlyAdditions> = additions_rows
        .iter()
@@ -265,13 +384,318 @@ pub async fn get_stats(
        })
        .collect();

+    // Metadata stats
+    let meta_row = sqlx::query(
+        r#"
+        SELECT
+            (SELECT COUNT(DISTINCT NULLIF(series, '')) FROM books) AS total_series,
+            (SELECT COUNT(DISTINCT series_name) FROM external_metadata_links WHERE status = 'approved') AS series_linked,
+            (SELECT COUNT(*) FROM books WHERE summary IS NOT NULL AND summary != '') AS books_with_summary,
+            (SELECT COUNT(*) FROM books WHERE isbn IS NOT NULL AND isbn != '') AS books_with_isbn
+        "#,
+    )
+    .fetch_one(&state.pool)
+    .await?;
+
+    let meta_total_series: i64 = meta_row.get("total_series");
+    let meta_series_linked: i64 = meta_row.get("series_linked");
+
+    let provider_rows = sqlx::query(
+        r#"
+        SELECT provider, COUNT(DISTINCT series_name) AS count
+        FROM external_metadata_links
+        WHERE status = 'approved'
+        GROUP BY provider
+        ORDER BY count DESC
+        "#,
+    )
+    .fetch_all(&state.pool)
+    .await?;
+
+    let by_provider: Vec<ProviderCount> = provider_rows
+        .iter()
+        .map(|r| ProviderCount {
+            provider: r.get("provider"),
+            count: r.get("count"),
+        })
+        .collect();
+
+    let metadata = MetadataStats {
+        total_series: meta_total_series,
+        series_linked: meta_series_linked,
+        series_unlinked: meta_total_series - meta_series_linked,
+        books_with_summary: meta_row.get("books_with_summary"),
+        books_with_isbn: meta_row.get("books_with_isbn"),
+        by_provider,
+    };
+
+    // Currently reading books
+    let reading_rows = sqlx::query(
+        r#"
+        SELECT b.id AS book_id, b.title, b.series, brp.current_page, b.page_count
+        FROM book_reading_progress brp
+        JOIN books b ON b.id = brp.book_id
+        WHERE brp.status = 'reading' AND brp.current_page IS NOT NULL
+        ORDER BY brp.updated_at DESC
+        LIMIT 20
+        "#,
+    )
+    .fetch_all(&state.pool)
+    .await?;
+
+    let currently_reading: Vec<CurrentlyReadingItem> = reading_rows
+        .iter()
+        .map(|r| {
+            let id: uuid::Uuid = r.get("book_id");
+            CurrentlyReadingItem {
+                book_id: id.to_string(),
+                title: r.get("title"),
+                series: r.get("series"),
+                current_page: r.get::<Option<i32>, _>("current_page").unwrap_or(0),
+                page_count: r.get::<Option<i32>, _>("page_count").unwrap_or(0),
+            }
+        })
+        .collect();
+
+    // Recently read books
+    let recent_rows = sqlx::query(
+        r#"
+        SELECT b.id AS book_id, b.title, b.series,
+               TO_CHAR(brp.last_read_at, 'YYYY-MM-DD') AS last_read_at
+        FROM book_reading_progress brp
+        JOIN books b ON b.id = brp.book_id
+        WHERE brp.status = 'read' AND brp.last_read_at IS NOT NULL
+        ORDER BY brp.last_read_at DESC
+        LIMIT 10
+        "#,
+    )
+    .fetch_all(&state.pool)
+    .await?;
+
+    let recently_read: Vec<RecentlyReadItem> = recent_rows
+        .iter()
+        .map(|r| {
+            let id: uuid::Uuid = r.get("book_id");
+            RecentlyReadItem {
+                book_id: id.to_string(),
+                title: r.get("title"),
+                series: r.get("series"),
+                last_read_at: r.get::<Option<String>, _>("last_read_at").unwrap_or_default(),
+            }
+        })
+        .collect();
+
+    // Reading activity over time (with gap filling)
+    let reading_time_rows = match period {
+        "day" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS month,
+                    COALESCE(cnt.books_read, 0) AS books_read
+                FROM generate_series(CURRENT_DATE - INTERVAL '6 days', CURRENT_DATE, '1 day') AS d(dt)
+                LEFT JOIN (
+                    SELECT brp.last_read_at::date AS dt, COUNT(*) AS books_read
+                    FROM book_reading_progress brp
+                    WHERE brp.status = 'read'
+                      AND brp.last_read_at >= CURRENT_DATE - INTERVAL '6 days'
+                    GROUP BY brp.last_read_at::date
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        "week" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS month,
+                    COALESCE(cnt.books_read, 0) AS books_read
+                FROM generate_series(
+                    DATE_TRUNC('week', NOW() - INTERVAL '2 months'),
+                    DATE_TRUNC('week', NOW()),
+                    '1 week'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT DATE_TRUNC('week', brp.last_read_at) AS dt, COUNT(*) AS books_read
+                    FROM book_reading_progress brp
+                    WHERE brp.status = 'read'
+                      AND brp.last_read_at >= DATE_TRUNC('week', NOW() - INTERVAL '2 months')
+                    GROUP BY DATE_TRUNC('week', brp.last_read_at)
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        _ => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM') AS month,
+                    COALESCE(cnt.books_read, 0) AS books_read
+                FROM generate_series(
+                    DATE_TRUNC('month', NOW()) - INTERVAL '11 months',
+                    DATE_TRUNC('month', NOW()),
+                    '1 month'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT DATE_TRUNC('month', brp.last_read_at) AS dt, COUNT(*) AS books_read
+                    FROM book_reading_progress brp
+                    WHERE brp.status = 'read'
+                      AND brp.last_read_at >= DATE_TRUNC('month', NOW()) - INTERVAL '11 months'
+                    GROUP BY DATE_TRUNC('month', brp.last_read_at)
+                ) cnt ON cnt.dt = d.dt
+                ORDER BY month ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+    };
+
+    let reading_over_time: Vec<MonthlyReading> = reading_time_rows
+        .iter()
+        .map(|r| MonthlyReading {
+            month: r.get::<Option<String>, _>("month").unwrap_or_default(),
+            books_read: r.get("books_read"),
+        })
+        .collect();
+
+    // Jobs over time (with gap filling, grouped by type category)
+    let jobs_rows = match period {
+        "day" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS label,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'scan'), 0)::BIGINT AS scan,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'rebuild'), 0)::BIGINT AS rebuild,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'thumbnail'), 0)::BIGINT AS thumbnail,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'other'), 0)::BIGINT AS other
+                FROM generate_series(CURRENT_DATE - INTERVAL '6 days', CURRENT_DATE, '1 day') AS d(dt)
+                LEFT JOIN (
+                    SELECT
+                        finished_at::date AS dt,
+                        CASE
+                            WHEN type = 'scan' THEN 'scan'
+                            WHEN type IN ('rebuild', 'full_rebuild', 'rescan') THEN 'rebuild'
+                            WHEN type IN ('thumbnail_rebuild', 'thumbnail_regenerate') THEN 'thumbnail'
+                            ELSE 'other'
+                        END AS cat,
+                        COUNT(*) AS c
+                    FROM index_jobs
+                    WHERE status IN ('success', 'failed')
+                      AND finished_at >= CURRENT_DATE - INTERVAL '6 days'
+                    GROUP BY finished_at::date, cat
+                ) cnt ON cnt.dt = d.dt
+                GROUP BY d.dt
+                ORDER BY label ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        "week" => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM-DD') AS label,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'scan'), 0)::BIGINT AS scan,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'rebuild'), 0)::BIGINT AS rebuild,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'thumbnail'), 0)::BIGINT AS thumbnail,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'other'), 0)::BIGINT AS other
+                FROM generate_series(
+                    DATE_TRUNC('week', NOW() - INTERVAL '2 months'),
+                    DATE_TRUNC('week', NOW()),
+                    '1 week'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT
+                        DATE_TRUNC('week', finished_at) AS dt,
+                        CASE
+                            WHEN type = 'scan' THEN 'scan'
+                            WHEN type IN ('rebuild', 'full_rebuild', 'rescan') THEN 'rebuild'
+                            WHEN type IN ('thumbnail_rebuild', 'thumbnail_regenerate') THEN 'thumbnail'
+                            ELSE 'other'
+                        END AS cat,
+                        COUNT(*) AS c
+                    FROM index_jobs
+                    WHERE status IN ('success', 'failed')
+                      AND finished_at >= DATE_TRUNC('week', NOW() - INTERVAL '2 months')
+                    GROUP BY DATE_TRUNC('week', finished_at), cat
+                ) cnt ON cnt.dt = d.dt
+                GROUP BY d.dt
+                ORDER BY label ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+        _ => {
+            sqlx::query(
+                r#"
+                SELECT
+                    TO_CHAR(d.dt, 'YYYY-MM') AS label,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'scan'), 0)::BIGINT AS scan,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'rebuild'), 0)::BIGINT AS rebuild,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'thumbnail'), 0)::BIGINT AS thumbnail,
+                    COALESCE(SUM(cnt.c) FILTER (WHERE cnt.cat = 'other'), 0)::BIGINT AS other
+                FROM generate_series(
+                    DATE_TRUNC('month', NOW()) - INTERVAL '11 months',
+                    DATE_TRUNC('month', NOW()),
+                    '1 month'
+                ) AS d(dt)
+                LEFT JOIN (
+                    SELECT
+                        DATE_TRUNC('month', finished_at) AS dt,
+                        CASE
+                            WHEN type = 'scan' THEN 'scan'
+                            WHEN type IN ('rebuild', 'full_rebuild', 'rescan') THEN 'rebuild'
+                            WHEN type IN ('thumbnail_rebuild', 'thumbnail_regenerate') THEN 'thumbnail'
+                            ELSE 'other'
+                        END AS cat,
+                        COUNT(*) AS c
+                    FROM index_jobs
+                    WHERE status IN ('success', 'failed')
+                      AND finished_at >= DATE_TRUNC('month', NOW()) - INTERVAL '11 months'
+                    GROUP BY DATE_TRUNC('month', finished_at), cat
+                ) cnt ON cnt.dt = d.dt
+                GROUP BY d.dt
+                ORDER BY label ASC
+                "#,
+            )
+            .fetch_all(&state.pool)
+            .await?
+        }
+    };
+
+    let jobs_over_time: Vec<JobTimePoint> = jobs_rows
+        .iter()
+        .map(|r| JobTimePoint {
+            label: r.get("label"),
+            scan: r.get("scan"),
+            rebuild: r.get("rebuild"),
+            thumbnail: r.get("thumbnail"),
+            other: r.get("other"),
+        })
+        .collect();
+
    Ok(Json(StatsResponse {
        overview,
        reading_status,
+        currently_reading,
+        recently_read,
+        reading_over_time,
        by_format,
        by_language,
        by_library,
        top_series,
        additions_over_time,
+        jobs_over_time,
+        metadata,
    }))
 }
--- a/apps/api/src/telegram.rs
+++ b/apps/api/src/telegram.rs
@@ -0,0 +1,46 @@
+use axum::{extract::State, Json};
+use serde::Serialize;
+use utoipa::ToSchema;
+
+use crate::{error::ApiError, state::AppState};
+
+#[derive(Serialize, ToSchema)]
+pub struct TelegramTestResponse {
+    pub success: bool,
+    pub message: String,
+}
+
+/// Test Telegram connection by sending a test message
+#[utoipa::path(
+    get,
+    path = "/telegram/test",
+    tag = "notifications",
+    responses(
+        (status = 200, body = TelegramTestResponse),
+        (status = 400, description = "Telegram not configured"),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn test_telegram(
+    State(state): State<AppState>,
+) -> Result<Json<TelegramTestResponse>, ApiError> {
+    let config = notifications::load_telegram_config(&state.pool)
+        .await
+        .ok_or_else(|| {
+            ApiError::bad_request(
+                "Telegram is not configured or disabled. Set bot_token, chat_id, and enable it.",
+            )
+        })?;
+
+    match notifications::send_test_message(&config).await {
+        Ok(()) => Ok(Json(TelegramTestResponse {
+            success: true,
+            message: "Test message sent successfully".to_string(),
+        })),
+        Err(e) => Ok(Json(TelegramTestResponse {
+            success: false,
+            message: format!("Failed to send: {e}"),
+        })),
+    }
+}
--- a/apps/backoffice/app/api/books/[bookId]/pages/[pageNum]/route.ts
+++ b/apps/backoffice/app/api/books/[bookId]/pages/[pageNum]/route.ts
@@ -21,19 +21,16 @@ export async function GET(
    const response = await fetch(apiUrl.toString(), {
      headers: { Authorization: `Bearer ${token}` },
    });
-    
+
    if (!response.ok) {
-      return new NextResponse(`Failed to fetch image: ${response.status}`, { 
-        status: response.status 
+      return new NextResponse(`Failed to fetch image: ${response.status}`, {
+        status: response.status
      });
    }
-    
-    // Récupérer le content-type et les données
+
    const contentType = response.headers.get("content-type") || "image/webp";
-    const imageBuffer = await response.arrayBuffer();
-    
-    // Retourner l'image avec le bon content-type
-    return new NextResponse(imageBuffer, {
+
+    return new NextResponse(response.body, {
      headers: {
        "Content-Type": contentType,
        "Cache-Control": "public, max-age=300",
--- a/apps/backoffice/app/api/books/[bookId]/thumbnail/route.ts
+++ b/apps/backoffice/app/api/books/[bookId]/thumbnail/route.ts
@@ -6,28 +6,46 @@ export async function GET(
  { params }: { params: Promise<{ bookId: string }> }
 ) {
  const { bookId } = await params;
-  
+
  try {
    const { baseUrl, token } = config();
+    const ifNoneMatch = request.headers.get("if-none-match");
+
+    const fetchHeaders: Record<string, string> = {
+      Authorization: `Bearer ${token}`,
+    };
+    if (ifNoneMatch) {
+      fetchHeaders["If-None-Match"] = ifNoneMatch;
+    }
+
    const response = await fetch(`${baseUrl}/books/${bookId}/thumbnail`, {
-      headers: { Authorization: `Bearer ${token}` },
+      headers: fetchHeaders,
+      next: { revalidate: 86400 },
    });
-    
+
+    // Forward 304 Not Modified as-is
+    if (response.status === 304) {
+      return new NextResponse(null, { status: 304 });
+    }
+
    if (!response.ok) {
-      return new NextResponse(`Failed to fetch thumbnail: ${response.status}`, { 
-        status: response.status 
+      return new NextResponse(`Failed to fetch thumbnail: ${response.status}`, {
+        status: response.status
      });
    }
-    
+
    const contentType = response.headers.get("content-type") || "image/webp";
-    const imageBuffer = await response.arrayBuffer();
-    
-    return new NextResponse(imageBuffer, {
-      headers: {
-        "Content-Type": contentType,
-        "Cache-Control": "public, max-age=31536000, immutable",
-      },
-    });
+    const etag = response.headers.get("etag");
+
+    const headers: Record<string, string> = {
+      "Content-Type": contentType,
+      "Cache-Control": "public, max-age=31536000, immutable",
+    };
+    if (etag) {
+      headers["ETag"] = etag;
+    }
+
+    return new NextResponse(response.body, { headers });
  } catch (error) {
    console.error("Error fetching thumbnail:", error);
    return new NextResponse("Failed to fetch thumbnail", { status: 500 });
--- a/apps/backoffice/app/api/jobs/stream/route.ts
+++ b/apps/backoffice/app/api/jobs/stream/route.ts
@@ -7,10 +7,11 @@ export async function GET(request: NextRequest) {
  const stream = new ReadableStream({
    async start(controller) {
      controller.enqueue(new TextEncoder().encode(""));
-      
+
      let lastData: string | null = null;
      let isActive = true;
      let consecutiveErrors = 0;
+      let intervalId: ReturnType<typeof setInterval> | null = null;

      const fetchJobs = async () => {
        if (!isActive) return;
@@ -25,51 +26,52 @@ export async function GET(request: NextRequest) {
            const data = await response.json();
            const dataStr = JSON.stringify(data);

-            // Send if data changed
+            // Send only if data changed
            if (dataStr !== lastData && isActive) {
              lastData = dataStr;
              try {
                controller.enqueue(
                  new TextEncoder().encode(`data: ${dataStr}\n\n`)
                );
-              } catch (err) {
-                // Controller closed, ignore
+              } catch {
                isActive = false;
              }
            }
+
+            // Adapt interval: 2s when active jobs exist, 15s when idle
+            const hasActiveJobs = data.some((j: { status: string }) =>
+              j.status === "running" || j.status === "pending" || j.status === "extracting_pages" || j.status === "generating_thumbnails"
+            );
+            const nextInterval = hasActiveJobs ? 2000 : 15000;
+            restartInterval(nextInterval);
          }
        } catch (error) {
          if (isActive) {
            consecutiveErrors++;
-            // Only log first failure and every 30th to avoid spam
            if (consecutiveErrors === 1 || consecutiveErrors % 30 === 0) {
              console.warn(`SSE fetch error (${consecutiveErrors} consecutive):`, error);
            }
          }
        }
      };
-      
-      // Initial fetch
+
+      const restartInterval = (ms: number) => {
+        if (intervalId !== null) clearInterval(intervalId);
+        intervalId = setInterval(fetchJobs, ms);
+      };
+
+      // Initial fetch + start polling
      await fetchJobs();
-      
-      // Poll every 2 seconds
-      const interval = setInterval(async () => {
-        if (!isActive) {
-          clearInterval(interval);
-          return;
-        }
-        await fetchJobs();
-      }, 2000);
-      
+
      // Cleanup
      request.signal.addEventListener("abort", () => {
        isActive = false;
-        clearInterval(interval);
+        if (intervalId !== null) clearInterval(intervalId);
        controller.close();
      });
    },
  });
-  
+
  return new Response(stream, {
    headers: {
      "Content-Type": "text/event-stream",
--- a/apps/backoffice/app/api/libraries/[id]/metadata-provider/route.ts
+++ b/apps/backoffice/app/api/libraries/[id]/metadata-provider/route.ts
@@ -0,0 +1,20 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, LibraryDto } from "@/lib/api";
+
+export async function PATCH(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params;
+  try {
+    const body = await request.json();
+    const data = await apiFetch<LibraryDto>(`/libraries/${id}/metadata-provider`, {
+      method: "PATCH",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to update metadata provider";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/libraries/[id]/monitoring/route.ts
+++ b/apps/backoffice/app/api/libraries/[id]/monitoring/route.ts
@@ -7,8 +7,8 @@ export async function PATCH(
 ) {
  const { id } = await params;
  try {
-    const { monitor_enabled, scan_mode, watcher_enabled } = await request.json();
-    const data = await updateLibraryMonitoring(id, monitor_enabled, scan_mode, watcher_enabled);
+    const { monitor_enabled, scan_mode, watcher_enabled, metadata_refresh_mode } = await request.json();
+    const data = await updateLibraryMonitoring(id, monitor_enabled, scan_mode, watcher_enabled, metadata_refresh_mode);
    return NextResponse.json(data);
  } catch (error) {
    const message = error instanceof Error ? error.message : "Failed to update monitoring settings";
--- a/apps/backoffice/app/api/metadata/approve/route.ts
+++ b/apps/backoffice/app/api/metadata/approve/route.ts
@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const { id, ...rest } = body;
+    const data = await apiFetch<{ status: string; books_synced: number }>(`/metadata/approve/${id}`, {
+      method: "POST",
+      body: JSON.stringify(rest),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to approve metadata";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/batch/report/route.ts
+++ b/apps/backoffice/app/api/metadata/batch/report/route.ts
@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, MetadataBatchReportDto } from "@/lib/api";
+
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get("id");
+    if (!id) {
+      return NextResponse.json({ error: "id is required" }, { status: 400 });
+    }
+    const data = await apiFetch<MetadataBatchReportDto>(`/metadata/batch/${id}/report`);
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to fetch report";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/batch/results/route.ts
+++ b/apps/backoffice/app/api/metadata/batch/results/route.ts
@@ -0,0 +1,19 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, MetadataBatchResultDto } from "@/lib/api";
+
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get("id");
+    if (!id) {
+      return NextResponse.json({ error: "id is required" }, { status: 400 });
+    }
+    const status = searchParams.get("status") || "";
+    const params = status ? `?status=${status}` : "";
+    const data = await apiFetch<MetadataBatchResultDto[]>(`/metadata/batch/${id}/results${params}`);
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to fetch results";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/batch/route.ts
+++ b/apps/backoffice/app/api/metadata/batch/route.ts
@@ -0,0 +1,16 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<{ id: string; status: string }>("/metadata/batch", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to start batch";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/links/route.ts
+++ b/apps/backoffice/app/api/metadata/links/route.ts
@@ -0,0 +1,35 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, ExternalMetadataLinkDto } from "@/lib/api";
+
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const libraryId = searchParams.get("library_id") || "";
+    const seriesName = searchParams.get("series_name") || "";
+    const params = new URLSearchParams();
+    if (libraryId) params.set("library_id", libraryId);
+    if (seriesName) params.set("series_name", seriesName);
+    const data = await apiFetch<ExternalMetadataLinkDto[]>(`/metadata/links?${params.toString()}`);
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to fetch metadata links";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
+
+export async function DELETE(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get("id");
+    if (!id) {
+      return NextResponse.json({ error: "id is required" }, { status: 400 });
+    }
+    const data = await apiFetch<{ deleted: boolean }>(`/metadata/links/${id}`, {
+      method: "DELETE",
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to delete metadata link";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/match/route.ts
+++ b/apps/backoffice/app/api/metadata/match/route.ts
@@ -0,0 +1,16 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, ExternalMetadataLinkDto } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<ExternalMetadataLinkDto>("/metadata/match", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to create metadata match";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/missing/route.ts
+++ b/apps/backoffice/app/api/metadata/missing/route.ts
@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, MissingBooksDto } from "@/lib/api";
+
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get("id");
+    if (!id) {
+      return NextResponse.json({ error: "id is required" }, { status: 400 });
+    }
+    const data = await apiFetch<MissingBooksDto>(`/metadata/missing/${id}`);
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to fetch missing books";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/refresh/report/route.ts
+++ b/apps/backoffice/app/api/metadata/refresh/report/route.ts
@@ -0,0 +1,16 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET(request: NextRequest) {
+  try {
+    const jobId = request.nextUrl.searchParams.get("job_id");
+    if (!jobId) {
+      return NextResponse.json({ error: "job_id required" }, { status: 400 });
+    }
+    const data = await apiFetch(`/metadata/refresh/${jobId}/report`);
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to get report";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/refresh/route.ts
+++ b/apps/backoffice/app/api/metadata/refresh/route.ts
@@ -0,0 +1,16 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<{ id: string; status: string }>("/metadata/refresh", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to start refresh";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/reject/route.ts
+++ b/apps/backoffice/app/api/metadata/reject/route.ts
@@ -0,0 +1,15 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<{ status: string }>(`/metadata/reject/${body.id}`, {
+      method: "POST",
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to reject metadata";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/metadata/search/route.ts
+++ b/apps/backoffice/app/api/metadata/search/route.ts
@@ -0,0 +1,16 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch, SeriesCandidateDto } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<SeriesCandidateDto[]>("/metadata/search", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to search metadata";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/prowlarr/search/route.ts
+++ b/apps/backoffice/app/api/prowlarr/search/route.ts
@@ -0,0 +1,16 @@
+import { NextResponse, NextRequest } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch("/prowlarr/search", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to search Prowlarr";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/prowlarr/test/route.ts
+++ b/apps/backoffice/app/api/prowlarr/test/route.ts
@@ -0,0 +1,12 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch("/prowlarr/test");
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to test Prowlarr connection";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/qbittorrent/add/route.ts
+++ b/apps/backoffice/app/api/qbittorrent/add/route.ts
@@ -0,0 +1,16 @@
+import { NextResponse, NextRequest } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch("/qbittorrent/add", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to add torrent";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/qbittorrent/test/route.ts
+++ b/apps/backoffice/app/api/qbittorrent/test/route.ts
@@ -0,0 +1,12 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch("/qbittorrent/test");
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to test qBittorrent";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/series/provider-statuses/route.ts
+++ b/apps/backoffice/app/api/series/provider-statuses/route.ts
@@ -0,0 +1,11 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch<string[]>("/series/provider-statuses");
+    return NextResponse.json(data);
+  } catch {
+    return NextResponse.json([], { status: 200 });
+  }
+}
--- a/apps/backoffice/app/api/series/statuses/route.ts
+++ b/apps/backoffice/app/api/series/statuses/route.ts
@@ -0,0 +1,11 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch<string[]>("/series/statuses");
+    return NextResponse.json(data);
+  } catch {
+    return NextResponse.json([], { status: 200 });
+  }
+}
--- a/apps/backoffice/app/api/settings/status-mappings/[id]/route.ts
+++ b/apps/backoffice/app/api/settings/status-mappings/[id]/route.ts
@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function DELETE(
+  _request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params;
+  try {
+    const data = await apiFetch<unknown>(`/settings/status-mappings/${id}`, {
+      method: "DELETE",
+    });
+    return NextResponse.json(data);
+  } catch {
+    return NextResponse.json({ error: "Failed to delete status mapping" }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/settings/status-mappings/route.ts
+++ b/apps/backoffice/app/api/settings/status-mappings/route.ts
@@ -0,0 +1,24 @@
+import { NextRequest, NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch<unknown>("/settings/status-mappings");
+    return NextResponse.json(data);
+  } catch {
+    return NextResponse.json({ error: "Failed to fetch status mappings" }, { status: 500 });
+  }
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const data = await apiFetch<unknown>("/settings/status-mappings", {
+      method: "POST",
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch {
+    return NextResponse.json({ error: "Failed to save status mapping" }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/api/telegram/test/route.ts
+++ b/apps/backoffice/app/api/telegram/test/route.ts
@@ -0,0 +1,12 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function GET() {
+  try {
+    const data = await apiFetch("/telegram/test");
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to test Telegram connection";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
--- a/apps/backoffice/app/authors/[name]/page.tsx
+++ b/apps/backoffice/app/authors/[name]/page.tsx
@@ -0,0 +1,135 @@
+import { fetchBooks, fetchAllSeries, BooksPageDto, SeriesPageDto, getBookCoverUrl } from "../../../lib/api";
+import { getServerTranslations } from "../../../lib/i18n/server";
+import { BooksGrid } from "../../components/BookCard";
+import { OffsetPagination } from "../../components/ui";
+import Image from "next/image";
+import Link from "next/link";
+
+export const dynamic = "force-dynamic";
+
+export default async function AuthorDetailPage({
+  params,
+  searchParams,
+}: {
+  params: Promise<{ name: string }>;
+  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
+}) {
+  const { t } = await getServerTranslations();
+  const { name: encodedName } = await params;
+  const authorName = decodeURIComponent(encodedName);
+  const searchParamsAwaited = await searchParams;
+  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
+  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;
+
+  // Fetch books by this author (server-side filtering via API) and series by this author
+  const [booksPage, seriesPage] = await Promise.all([
+    fetchBooks(undefined, undefined, page, limit, undefined, undefined, authorName).catch(
+      () => ({ items: [], total: 0, page: 1, limit }) as BooksPageDto
+    ),
+    fetchAllSeries(undefined, undefined, undefined, 1, 200, undefined, undefined, undefined, undefined, authorName).catch(
+      () => ({ items: [], total: 0, page: 1, limit: 200 }) as SeriesPageDto
+    ),
+  ]);
+
+  const totalPages = Math.ceil(booksPage.total / limit);
+
+  const authorSeries = seriesPage.items;
+
+  return (
+    <>
+      {/* Breadcrumb */}
+      <nav className="flex items-center gap-2 text-sm text-muted-foreground mb-6">
+        <Link href="/authors" className="hover:text-foreground transition-colors">
+          {t("authors.title")}
+        </Link>
+        <span>/</span>
+        <span className="text-foreground font-medium">{authorName}</span>
+      </nav>
+
+      {/* Author Header */}
+      <div className="flex items-center gap-4 mb-8">
+        <div className="w-16 h-16 rounded-full bg-accent/50 flex items-center justify-center flex-shrink-0">
+          <span className="text-2xl font-bold text-accent-foreground">
+            {authorName.charAt(0).toUpperCase()}
+          </span>
+        </div>
+        <div>
+          <h1 className="text-3xl font-bold text-foreground">{authorName}</h1>
+          <div className="flex items-center gap-4 mt-1">
+            <span className="text-sm text-muted-foreground">
+              {t("authors.bookCount", { count: String(booksPage.total), plural: booksPage.total !== 1 ? "s" : "" })}
+            </span>
+            {authorSeries.length > 0 && (
+              <span className="text-sm text-muted-foreground">
+                {t("authors.seriesCount", { count: String(authorSeries.length), plural: authorSeries.length !== 1 ? "s" : "" })}
+              </span>
+            )}
+          </div>
+        </div>
+      </div>
+
+      {/* Series Section */}
+      {authorSeries.length > 0 && (
+        <section className="mb-8">
+          <h2 className="text-xl font-semibold text-foreground mb-4">
+            {t("authors.seriesBy", { name: authorName })}
+          </h2>
+          <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 xl:grid-cols-6 gap-4">
+            {authorSeries.map((s) => (
+              <Link
+                key={`${s.library_id}-${s.name}`}
+                href={`/libraries/${s.library_id}/series/${encodeURIComponent(s.name)}`}
+                className="group"
+              >
+                <div className="bg-card rounded-xl shadow-sm border border-border/60 overflow-hidden hover:shadow-md hover:-translate-y-1 transition-all duration-200">
+                  <div className="aspect-[2/3] relative bg-muted/50">
+                    <Image
+                      src={getBookCoverUrl(s.first_book_id)}
+                      alt={s.name}
+                      fill
+                      className="object-cover"
+                      sizes="(max-width: 640px) 50vw, (max-width: 768px) 33vw, (max-width: 1024px) 25vw, 16vw"
+                    />
+                  </div>
+                  <div className="p-3">
+                    <h3 className="font-medium text-foreground truncate text-sm" title={s.name}>
+                      {s.name}
+                    </h3>
+                    <p className="text-xs text-muted-foreground mt-1">
+                      {t("authors.bookCount", { count: String(s.book_count), plural: s.book_count !== 1 ? "s" : "" })}
+                    </p>
+                  </div>
+                </div>
+              </Link>
+            ))}
+          </div>
+        </section>
+      )}
+
+      {/* Books Section */}
+      {booksPage.items.length > 0 && (
+        <section>
+          <h2 className="text-xl font-semibold text-foreground mb-4">
+            {t("authors.booksBy", { name: authorName })}
+          </h2>
+          <BooksGrid books={booksPage.items} />
+          <OffsetPagination
+            currentPage={page}
+            totalPages={totalPages}
+            pageSize={limit}
+            totalItems={booksPage.total}
+          />
+        </section>
+      )}
+
+      {/* Empty State */}
+      {booksPage.items.length === 0 && authorSeries.length === 0 && (
+        <div className="flex flex-col items-center justify-center py-16 text-center">
+          <p className="text-muted-foreground text-lg">
+            {t("authors.noResults")}
+          </p>
+        </div>
+      )}
+    </>
+  );
+}
--- a/apps/backoffice/app/authors/page.tsx
+++ b/apps/backoffice/app/authors/page.tsx
@@ -0,0 +1,122 @@
+import { fetchAuthors, AuthorsPageDto } from "../../lib/api";
+import { getServerTranslations } from "../../lib/i18n/server";
+import { LiveSearchForm } from "../components/LiveSearchForm";
+import { Card, CardContent, OffsetPagination } from "../components/ui";
+import Link from "next/link";
+
+export const dynamic = "force-dynamic";
+
+export default async function AuthorsPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
+}) {
+  const { t } = await getServerTranslations();
+  const searchParamsAwaited = await searchParams;
+  const searchQuery = typeof searchParamsAwaited.q === "string" ? searchParamsAwaited.q : "";
+  const sort = typeof searchParamsAwaited.sort === "string" ? searchParamsAwaited.sort : undefined;
+  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
+  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;
+
+  const authorsPage = await fetchAuthors(
+    searchQuery || undefined,
+    page,
+    limit,
+    sort,
+  ).catch(() => ({ items: [], total: 0, page: 1, limit }) as AuthorsPageDto);
+
+  const totalPages = Math.ceil(authorsPage.total / limit);
+  const hasFilters = searchQuery || sort;
+
+  const sortOptions = [
+    { value: "", label: t("authors.sortName") },
+    { value: "books", label: t("authors.sortBooks") },
+  ];
+
+  return (
+    <>
+      <div className="mb-6">
+        <h1 className="text-3xl font-bold text-foreground flex items-center gap-3">
+          <svg className="w-8 h-8 text-violet-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z" />
+          </svg>
+          {t("authors.title")}
+        </h1>
+      </div>
+
+      <Card className="mb-6">
+        <CardContent className="pt-6">
+          <LiveSearchForm
+            basePath="/authors"
+            fields={[
+              { name: "q", type: "text", label: t("common.search"), placeholder: t("authors.searchPlaceholder") },
+              { name: "sort", type: "select", label: t("books.sort"), options: sortOptions },
+            ]}
+          />
+        </CardContent>
+      </Card>
+
+      {/* Results count */}
+      <p className="text-sm text-muted-foreground mb-4">
+        {authorsPage.total} {t("authors.title").toLowerCase()}
+        {searchQuery && <> {t("authors.matchingQuery")} &quot;{searchQuery}&quot;</>}
+      </p>
+
+      {/* Authors List */}
+      {authorsPage.items.length > 0 ? (
+        <>
+          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
+            {authorsPage.items.map((author) => (
+              <Link
+                key={author.name}
+                href={`/authors/${encodeURIComponent(author.name)}`}
+                className="group"
+              >
+                <div className="bg-card rounded-xl shadow-sm border border-border/60 overflow-hidden hover:shadow-md hover:-translate-y-1 transition-all duration-200 p-4">
+                  <div className="flex items-center gap-3">
+                    <div className="w-10 h-10 rounded-full bg-accent/50 flex items-center justify-center flex-shrink-0">
+                      <span className="text-lg font-semibold text-violet-500">
+                        {author.name.charAt(0).toUpperCase()}
+                      </span>
+                    </div>
+                    <div className="min-w-0">
+                      <h3 className="font-medium text-foreground truncate text-sm group-hover:text-violet-500 transition-colors" title={author.name}>
+                        {author.name}
+                      </h3>
+                      <div className="flex items-center gap-3 mt-0.5">
+                        <span className="text-xs text-muted-foreground">
+                          {t("authors.bookCount", { count: String(author.book_count), plural: author.book_count !== 1 ? "s" : "" })}
+                        </span>
+                        <span className="text-xs text-muted-foreground">
+                          {t("authors.seriesCount", { count: String(author.series_count), plural: author.series_count !== 1 ? "s" : "" })}
+                        </span>
+                      </div>
+                    </div>
+                  </div>
+                </div>
+              </Link>
+            ))}
+          </div>
+
+          <OffsetPagination
+            currentPage={page}
+            totalPages={totalPages}
+            pageSize={limit}
+            totalItems={authorsPage.total}
+          />
+        </>
+      ) : (
+        <div className="flex flex-col items-center justify-center py-16 text-center">
+          <div className="w-16 h-16 mb-4 text-muted-foreground/30">
+            <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z" />
+            </svg>
+          </div>
+          <p className="text-muted-foreground text-lg">
+            {hasFilters ? t("authors.noResults") : t("authors.noAuthors")}
+          </p>
+        </div>
+      )}
+    </>
+  );
+}
--- a/apps/backoffice/app/books/[id]/page.tsx
+++ b/apps/backoffice/app/books/[id]/page.tsx
@@ -2,44 +2,25 @@ import { fetchLibraries, getBookCoverUrl, BookDto, apiFetch, ReadingStatus } fro
 import { BookPreview } from "../../components/BookPreview";
 import { ConvertButton } from "../../components/ConvertButton";
 import { MarkBookReadButton } from "../../components/MarkBookReadButton";
-import { EditBookForm } from "../../components/EditBookForm";
+import nextDynamic from "next/dynamic";
+import { SafeHtml } from "../../components/SafeHtml";
+import { getServerTranslations } from "../../../lib/i18n/server";
 import Image from "next/image";
 import Link from "next/link";
+
+const EditBookForm = nextDynamic(
+  () => import("../../components/EditBookForm").then(m => m.EditBookForm)
+);
 import { notFound } from "next/navigation";

 export const dynamic = "force-dynamic";

-const readingStatusConfig: Record<ReadingStatus, { label: string; className: string }> = {
-  unread: { label: "Non lu", className: "bg-muted/60 text-muted-foreground border border-border" },
-  reading: { label: "En cours", className: "bg-amber-500/15 text-amber-600 dark:text-amber-400 border border-amber-500/30" },
-  read: { label: "Lu", className: "bg-green-500/15 text-green-600 dark:text-green-400 border border-green-500/30" },
+const readingStatusClassNames: Record<ReadingStatus, string> = {
+  unread: "bg-muted/60 text-muted-foreground border border-border",
+  reading: "bg-amber-500/15 text-amber-600 dark:text-amber-400 border border-amber-500/30",
+  read: "bg-green-500/15 text-green-600 dark:text-green-400 border border-green-500/30",
 };

-function ReadingStatusBadge({
-  status,
-  currentPage,
-  lastReadAt,
-}: {
-  status: ReadingStatus;
-  currentPage: number | null;
-  lastReadAt: string | null;
-}) {
-  const { label, className } = readingStatusConfig[status];
-  return (
-    <div className="flex items-center gap-2">
-      <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-semibold ${className}`}>
-        {label}
-        {status === "reading" && currentPage != null && ` · p. ${currentPage}`}
-      </span>
-      {lastReadAt && (
-        <span className="text-xs text-muted-foreground">
-          {new Date(lastReadAt).toLocaleDateString()}
-        </span>
-      )}
-    </div>
-  );
-}
-
 async function fetchBook(bookId: string): Promise<BookDto | null> {
  try {
    return await apiFetch<BookDto>(`/books/${bookId}`);
@@ -63,164 +44,199 @@ export default async function BookDetailPage({
    notFound();
  }

+  const { t, locale } = await getServerTranslations();
+
  const library = libraries.find(l => l.id === book.library_id);
+  const formatBadge = (book.format ?? book.kind).toUpperCase();
+  const formatColor =
+    formatBadge === "CBZ" ? "bg-success/10 text-success border-success/30" :
+    formatBadge === "CBR" ? "bg-warning/10 text-warning border-warning/30" :
+    formatBadge === "PDF" ? "bg-destructive/10 text-destructive border-destructive/30" :
+    "bg-muted/50 text-muted-foreground border-border";
+  const statusLabel = t(`status.${book.reading_status}` as "status.unread" | "status.reading" | "status.read");
+  const statusClassName = readingStatusClassNames[book.reading_status];

  return (
-    <>
-      <div className="mb-6">
-        <Link href="/books" className="inline-flex items-center text-sm text-muted-foreground hover:text-primary transition-colors">
-          ← Back to books
+    <div className="space-y-6">
+      {/* Breadcrumb */}
+      <div className="flex items-center gap-2 text-sm">
+        <Link href="/libraries" className="text-muted-foreground hover:text-primary transition-colors">
+          {t("bookDetail.libraries")}
        </Link>
+        <span className="text-muted-foreground">/</span>
+        {library && (
+          <>
+            <Link
+              href={`/libraries/${book.library_id}/series`}
+              className="text-muted-foreground hover:text-primary transition-colors"
+            >
+              {library.name}
+            </Link>
+            <span className="text-muted-foreground">/</span>
+          </>
+        )}
+        {book.series && (
+          <>
+            <Link
+              href={`/libraries/${book.library_id}/series/${encodeURIComponent(book.series)}`}
+              className="text-muted-foreground hover:text-primary transition-colors"
+            >
+              {book.series}
+            </Link>
+            <span className="text-muted-foreground">/</span>
+          </>
+        )}
+        <span className="text-foreground font-medium truncate">{book.title}</span>
      </div>

-      <div className="flex flex-col lg:flex-row gap-8">
+      {/* Hero */}
+      <div className="flex flex-col sm:flex-row gap-6">
+        {/* Cover */}
        <div className="flex-shrink-0">
-          <div className="bg-card rounded-xl shadow-card border border-border p-4 inline-block">
+          <div className="w-48 aspect-[2/3] relative rounded-xl overflow-hidden shadow-card border border-border">
            <Image
              src={getBookCoverUrl(book.id)}
-              alt={`Cover of ${book.title}`}
-              width={300}
-              height={440}
-              className="w-auto h-auto max-w-[300px] rounded-lg"
-              unoptimized
+              alt={t("bookDetail.coverOf", { title: book.title })}
+              fill
+              className="object-cover"
+              sizes="192px"
              loading="lazy"
            />
          </div>
        </div>

-        <div className="flex-1">
-          <div className="bg-card rounded-xl shadow-sm border border-border p-6">
-            <div className="flex items-start justify-between gap-4 mb-2">
+        {/* Info */}
+        <div className="flex-1 space-y-4">
+          <div className="flex items-start justify-between gap-4">
+            <div>
              <h1 className="text-3xl font-bold text-foreground">{book.title}</h1>
-              <EditBookForm book={book} />
-            </div>
-            
-            {book.author && (
-              <p className="text-lg text-muted-foreground mb-4">by {book.author}</p>
-            )}
-
-            {book.series && (
-              <p className="text-sm text-muted-foreground mb-6">
-                {book.series}
-                {book.volume && <span className="ml-2 px-2 py-1 bg-primary/10 text-primary rounded text-xs">Volume {book.volume}</span>}
-              </p>
-            )}
-
-            <div className="space-y-3">
-              {book.reading_status && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Lecture :</span>
-                  <div className="flex items-center gap-3">
-                    <ReadingStatusBadge
-                      status={book.reading_status}
-                      currentPage={book.reading_current_page ?? null}
-                      lastReadAt={book.reading_last_read_at ?? null}
-                    />
-                    <MarkBookReadButton bookId={book.id} currentStatus={book.reading_status} />
-                  </div>
-                </div>
-              )}
-
-              <div className="flex items-center justify-between py-2 border-b border-border">
-                <span className="text-sm text-muted-foreground">Format:</span>
-                <span className={`inline-flex px-2.5 py-1 rounded-full text-xs font-semibold ${
-                  (book.format ?? book.kind) === 'cbz' ? 'bg-success/10 text-success' :
-                  (book.format ?? book.kind) === 'cbr' ? 'bg-warning/10 text-warning' :
-                  (book.format ?? book.kind) === 'pdf' ? 'bg-destructive/10 text-destructive' :
-                  'bg-muted/50 text-muted-foreground'
-                }`}>
-                  {(book.format ?? book.kind).toUpperCase()}
-                </span>
-              </div>
-              
-              {book.volume && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Volume:</span>
-                  <span className="text-sm text-foreground">{book.volume}</span>
-                </div>
-              )}
-              
-              {book.language && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Language:</span>
-                  <span className="text-sm text-foreground">{book.language.toUpperCase()}</span>
-                </div>
-              )}
-              
-              {book.page_count && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Pages:</span>
-                  <span className="text-sm text-foreground">{book.page_count}</span>
-                </div>
-              )}
-
-              <div className="flex items-center justify-between py-2 border-b border-border">
-                <span className="text-sm text-muted-foreground">Library:</span>
-                <span className="text-sm text-foreground">{library?.name || book.library_id}</span>
-              </div>
-
-              {book.series && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Series:</span>
-                  <span className="text-sm text-foreground">{book.series}</span>
-                </div>
-              )}
-
-              {book.file_format && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">File Format:</span>
-                  <div className="flex items-center gap-3">
-                    <span className="text-sm text-foreground">{book.file_format.toUpperCase()}</span>
-                    {book.file_format === "cbr" && <ConvertButton bookId={book.id} />}
-                  </div>
-                </div>
-              )}
-
-              {book.file_parse_status && (
-                <div className="flex items-center justify-between py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground">Parse Status:</span>
-                  <span className={`inline-flex px-2.5 py-1 rounded-full text-xs font-semibold ${
-                    book.file_parse_status === 'success' ? 'bg-success/10 text-success' : 
-                    book.file_parse_status === 'failed' ? 'bg-destructive/10 text-error' : 'bg-muted/50 text-muted-foreground'
-                  }`}>
-                    {book.file_parse_status}
-                  </span>
-                </div>
-              )}
-
-              {book.file_path && (
-                <div className="flex flex-col py-2 border-b border-border">
-                  <span className="text-sm text-muted-foreground mb-1">File Path:</span>
-                  <code className="text-xs font-mono text-foreground break-all">{book.file_path}</code>
-                </div>
-              )}
-
-              <div className="flex flex-col py-2 border-b border-border">
-                <span className="text-sm text-muted-foreground mb-1">Book ID:</span>
-                <code className="text-xs font-mono text-foreground break-all">{book.id}</code>
-              </div>
-
-              <div className="flex flex-col py-2 border-b border-border">
-                <span className="text-sm text-muted-foreground mb-1">Library ID:</span>
-                <code className="text-xs font-mono text-foreground break-all">{book.library_id}</code>
-              </div>
-
-              {book.updated_at && (
-                <div className="flex items-center justify-between py-2">
-                  <span className="text-sm text-muted-foreground">Updated:</span>
-                  <span className="text-sm text-foreground">{new Date(book.updated_at).toLocaleString()}</span>
-                </div>
+              {book.author && (
+                <p className="text-base text-muted-foreground mt-1">{book.author}</p>
              )}
            </div>
+            <EditBookForm book={book} />
          </div>
+
+          {/* Series + Volume link */}
+          {book.series && (
+            <div className="flex items-center gap-2 text-sm">
+              <Link
+                href={`/libraries/${book.library_id}/series/${encodeURIComponent(book.series)}`}
+                className="text-primary hover:text-primary/80 transition-colors font-medium"
+              >
+                {book.series}
+              </Link>
+              {book.volume != null && (
+                <span className="px-2 py-0.5 bg-primary/10 text-primary rounded-md text-xs font-semibold">
+                  Vol. {book.volume}
+                </span>
+              )}
+            </div>
+          )}
+
+          {/* Reading status + actions */}
+          <div className="flex flex-wrap items-center gap-3">
+            <span className={`inline-flex items-center px-2.5 py-1 rounded-full text-xs font-semibold ${statusClassName}`}>
+              {statusLabel}
+              {book.reading_status === "reading" && book.reading_current_page != null && ` · p. ${book.reading_current_page}`}
+            </span>
+            {book.reading_last_read_at && (
+              <span className="text-xs text-muted-foreground">
+                {new Date(book.reading_last_read_at).toLocaleDateString(locale)}
+              </span>
+            )}
+            <MarkBookReadButton bookId={book.id} currentStatus={book.reading_status} />
+            {book.file_format === "cbr" && <ConvertButton bookId={book.id} />}
+          </div>
+
+          {/* Metadata pills */}
+          <div className="flex flex-wrap items-center gap-2">
+            <span className={`inline-flex px-2.5 py-1 rounded-full text-xs font-semibold border ${formatColor}`}>
+              {formatBadge}
+            </span>
+            {book.page_count && (
+              <span className="inline-flex px-2.5 py-1 rounded-full text-xs font-medium bg-muted/50 text-muted-foreground border border-border">
+                {book.page_count} {t("dashboard.pages").toLowerCase()}
+              </span>
+            )}
+            {book.language && (
+              <span className="inline-flex px-2.5 py-1 rounded-full text-xs font-medium bg-muted/50 text-muted-foreground border border-border">
+                {book.language.toUpperCase()}
+              </span>
+            )}
+            {book.isbn && (
+              <span className="inline-flex px-2.5 py-1 rounded-full text-xs font-mono font-medium bg-muted/50 text-muted-foreground border border-border">
+                ISBN {book.isbn}
+              </span>
+            )}
+            {book.publish_date && (
+              <span className="inline-flex px-2.5 py-1 rounded-full text-xs font-medium bg-muted/50 text-muted-foreground border border-border">
+                {book.publish_date}
+              </span>
+            )}
+          </div>
+
+          {/* Description */}
+          {book.summary && (
+            <SafeHtml html={book.summary} className="text-sm text-muted-foreground leading-relaxed" />
+          )}
        </div>
      </div>

-      {book.page_count && book.page_count > 0 && (
-        <div className="mt-8">
-          <BookPreview bookId={book.id} pageCount={book.page_count} />
+      {/* Technical info (collapsible) */}
+      <details className="group">
+        <summary className="cursor-pointer text-xs text-muted-foreground hover:text-foreground transition-colors select-none flex items-center gap-1.5">
+          <svg className="w-3.5 h-3.5 transition-transform group-open:rotate-90" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
+          </svg>
+          {t("bookDetail.technicalInfo")}
+        </summary>
+        <div className="mt-3 p-4 rounded-lg bg-muted/30 border border-border/50 space-y-2 text-xs">
+          {book.file_path && (
+            <div className="flex flex-col gap-0.5">
+              <span className="text-muted-foreground">{t("bookDetail.file")}</span>
+              <code className="font-mono text-foreground break-all">{book.file_path}</code>
+            </div>
+          )}
+          {book.file_format && (
+            <div className="flex items-center justify-between">
+              <span className="text-muted-foreground">{t("bookDetail.fileFormat")}</span>
+              <span className="text-foreground">{book.file_format.toUpperCase()}</span>
+            </div>
+          )}
+          {book.file_parse_status && (
+            <div className="flex items-center justify-between">
+              <span className="text-muted-foreground">{t("bookDetail.parsing")}</span>
+              <span className={`inline-flex px-2 py-0.5 rounded-full text-xs font-medium ${
+                book.file_parse_status === "success" ? "bg-success/10 text-success" :
+                book.file_parse_status === "failed" ? "bg-destructive/10 text-destructive" :
+                "bg-muted/50 text-muted-foreground"
+              }`}>
+                {book.file_parse_status}
+              </span>
+            </div>
+          )}
+          <div className="flex items-center justify-between">
+            <span className="text-muted-foreground">Book ID</span>
+            <code className="font-mono text-foreground">{book.id}</code>
+          </div>
+          <div className="flex items-center justify-between">
+            <span className="text-muted-foreground">Library ID</span>
+            <code className="font-mono text-foreground">{book.library_id}</code>
+          </div>
+          {book.updated_at && (
+            <div className="flex items-center justify-between">
+              <span className="text-muted-foreground">{t("bookDetail.updatedAt")}</span>
+              <span className="text-foreground">{new Date(book.updated_at).toLocaleString(locale)}</span>
+            </div>
+          )}
        </div>
+      </details>
+
+      {/* Book Preview */}
+      {book.page_count && book.page_count > 0 && (
+        <BookPreview bookId={book.id} pageCount={book.page_count} />
      )}
-    </>
+    </div>
  );
 }
--- a/apps/backoffice/app/books/page.tsx
+++ b/apps/backoffice/app/books/page.tsx
@@ -4,6 +4,7 @@ import { LiveSearchForm } from "../components/LiveSearchForm";
 import { Card, CardContent, OffsetPagination } from "../components/ui";
 import Link from "next/link";
 import Image from "next/image";
+import { getServerTranslations } from "../../lib/i18n/server";

 export const dynamic = "force-dynamic";

@@ -12,10 +13,13 @@ export default async function BooksPage({
 }: {
  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
+  const { t } = await getServerTranslations();
  const searchParamsAwaited = await searchParams;
  const libraryId = typeof searchParamsAwaited.library === "string" ? searchParamsAwaited.library : undefined;
  const searchQuery = typeof searchParamsAwaited.q === "string" ? searchParamsAwaited.q : "";
  const readingStatus = typeof searchParamsAwaited.status === "string" ? searchParamsAwaited.status : undefined;
+  const format = typeof searchParamsAwaited.format === "string" ? searchParamsAwaited.format : undefined;
+  const metadataProvider = typeof searchParamsAwaited.metadata === "string" ? searchParamsAwaited.metadata : undefined;
  const sort = typeof searchParamsAwaited.sort === "string" ? searchParamsAwaited.sort : undefined;
  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;
@@ -53,11 +57,14 @@ export default async function BooksPage({
        reading_status: "unread" as const,
        reading_current_page: null,
        reading_last_read_at: null,
+        summary: null,
+        isbn: null,
+        publish_date: null,
      }));
      totalHits = searchResponse.estimated_total_hits;
    }
  } else {
-    const booksPage = await fetchBooks(libraryId, undefined, page, limit, readingStatus, sort).catch(() => ({
+    const booksPage = await fetchBooks(libraryId, undefined, page, limit, readingStatus, sort, undefined, format, metadataProvider).catch(() => ({
      items: [] as BookDto[],
      total: 0,
      page: 1,
@@ -75,23 +82,37 @@ export default async function BooksPage({
  const totalPages = Math.ceil(total / limit);

  const libraryOptions = [
-    { value: "", label: "All libraries" },
+    { value: "", label: t("books.allLibraries") },
    ...libraries.map((lib) => ({ value: lib.id, label: lib.name })),
  ];

  const statusOptions = [
-    { value: "", label: "All" },
-    { value: "unread", label: "Unread" },
-    { value: "reading", label: "In progress" },
-    { value: "read", label: "Read" },
+    { value: "", label: t("common.all") },
+    { value: "unread", label: t("status.unread") },
+    { value: "reading", label: t("status.reading") },
+    { value: "read", label: t("status.read") },
+  ];
+
+  const formatOptions = [
+    { value: "", label: t("books.allFormats") },
+    { value: "cbz", label: "CBZ" },
+    { value: "cbr", label: "CBR" },
+    { value: "pdf", label: "PDF" },
+    { value: "epub", label: "EPUB" },
+  ];
+
+  const metadataOptions = [
+    { value: "", label: t("series.metadataAll") },
+    { value: "linked", label: t("series.metadataLinked") },
+    { value: "unlinked", label: t("series.metadataUnlinked") },
  ];

  const sortOptions = [
-    { value: "", label: "Title" },
-    { value: "latest", label: "Latest added" },
+    { value: "", label: t("books.sortTitle") },
+    { value: "latest", label: t("books.sortLatest") },
  ];

-  const hasFilters = searchQuery || libraryId || readingStatus || sort;
+  const hasFilters = searchQuery || libraryId || readingStatus || format || metadataProvider || sort;

  return (
    <>
@@ -100,7 +121,7 @@ export default async function BooksPage({
          <svg className="w-8 h-8 text-success" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" />
          </svg>
-          Books
+          {t("books.title")}
        </h1>
      </div>

@@ -109,10 +130,12 @@ export default async function BooksPage({
          <LiveSearchForm
            basePath="/books"
            fields={[
-              { name: "q", type: "text", label: "Search", placeholder: "Search by title, author, series...", className: "flex-1 w-full" },
-              { name: "library", type: "select", label: "Library", options: libraryOptions, className: "w-full sm:w-48" },
-              { name: "status", type: "select", label: "Status", options: statusOptions, className: "w-full sm:w-40" },
-              { name: "sort", type: "select", label: "Sort", options: sortOptions, className: "w-full sm:w-40" },
+              { name: "q", type: "text", label: t("common.search"), placeholder: t("books.searchPlaceholder") },
+              { name: "library", type: "select", label: t("books.library"), options: libraryOptions },
+              { name: "status", type: "select", label: t("books.status"), options: statusOptions },
+              { name: "format", type: "select", label: t("books.format"), options: formatOptions },
+              { name: "metadata", type: "select", label: t("series.metadata"), options: metadataOptions },
+              { name: "sort", type: "select", label: t("books.sort"), options: sortOptions },
            ]}
          />
        </CardContent>
@@ -121,18 +144,18 @@ export default async function BooksPage({
      {/* Résultats */}
      {searchQuery && totalHits !== null ? (
        <p className="text-sm text-muted-foreground mb-4">
-          Found {totalHits} result{totalHits !== 1 ? 's' : ''} for &quot;{searchQuery}&quot;
+          {t("books.resultCountFor", { count: String(totalHits), plural: totalHits !== 1 ? "s" : "", query: searchQuery })}
        </p>
      ) : !searchQuery && (
        <p className="text-sm text-muted-foreground mb-4">
-          {total} book{total !== 1 ? 's' : ''}
+          {t("books.resultCount", { count: String(total), plural: total !== 1 ? "s" : "" })}
        </p>
      )}

      {/* Séries matchantes */}
      {seriesHits.length > 0 && (
        <div className="mb-8">
-          <h2 className="text-lg font-semibold text-foreground mb-3">Series</h2>
+          <h2 className="text-lg font-semibold text-foreground mb-3">{t("books.seriesHeading")}</h2>
          <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-6 gap-4">
            {seriesHits.map((s) => (
              <Link
@@ -144,18 +167,18 @@ export default async function BooksPage({
                  <div className="aspect-[2/3] relative bg-muted/50">
                    <Image
                      src={getBookCoverUrl(s.first_book_id)}
-                      alt={`Cover of ${s.name}`}
+                      alt={t("books.coverOf", { name: s.name })}
                      fill
                      className="object-cover"
-                      unoptimized
+                      sizes="(max-width: 640px) 50vw, (max-width: 768px) 33vw, (max-width: 1024px) 25vw, 16vw"
                    />
                  </div>
                  <div className="p-2">
                    <h3 className="font-medium text-foreground truncate text-sm" title={s.name}>
-                      {s.name === "unclassified" ? "Unclassified" : s.name}
+                      {s.name === "unclassified" ? t("books.unclassified") : s.name}
                    </h3>
                    <p className="text-xs text-muted-foreground mt-0.5">
-                      {s.book_count} book{s.book_count !== 1 ? 's' : ''}
+                      {t("books.bookCount", { count: String(s.book_count), plural: s.book_count !== 1 ? "s" : "" })}
                    </p>
                  </div>
                </div>
@@ -168,7 +191,7 @@ export default async function BooksPage({
      {/* Grille de livres */}
      {displayBooks.length > 0 ? (
        <>
-          {searchQuery && <h2 className="text-lg font-semibold text-foreground mb-3">Books</h2>}
+          {searchQuery && <h2 className="text-lg font-semibold text-foreground mb-3">{t("books.title")}</h2>}
          <BooksGrid books={displayBooks} />

          {!searchQuery && (
@@ -181,7 +204,7 @@ export default async function BooksPage({
          )}
        </>
      ) : (
-        <EmptyState message={searchQuery ? `No books found for "${searchQuery}"` : "No books available"} />
+        <EmptyState message={searchQuery ? t("books.noResults", { query: searchQuery }) : t("books.noBooks")} />
      )}
    </>
  );
--- a/apps/backoffice/app/components/BookCard.tsx
+++ b/apps/backoffice/app/components/BookCard.tsx
@@ -1,14 +1,15 @@
 "use client";

-import { useState } from "react";
+import { memo, useState } from "react";
 import Image from "next/image";
 import Link from "next/link";
 import { BookDto, ReadingStatus } from "../../lib/api";
+import { useTranslation } from "../../lib/i18n/context";

-const readingStatusOverlay: Record<ReadingStatus, { label: string; className: string } | null> = {
+const readingStatusOverlayClasses: Record<ReadingStatus, string | null> = {
  unread: null,
-  reading: { label: "En cours", className: "bg-amber-500/90 text-white" },
-  read: { label: "Lu", className: "bg-green-600/90 text-white" },
+  reading: "bg-amber-500/90 text-white",
+  read: "bg-green-600/90 text-white",
 };

 interface BookCardProps {
@@ -16,7 +17,7 @@ interface BookCardProps {
  readingStatus?: ReadingStatus;
 }

-function BookImage({ src, alt }: { src: string; alt: string }) {
+const BookImage = memo(function BookImage({ src, alt }: { src: string; alt: string }) {
  const [isLoaded, setIsLoaded] = useState(false);
  const [hasError, setHasError] = useState(false);

@@ -50,16 +51,21 @@ function BookImage({ src, alt }: { src: string; alt: string }) {
        sizes="(max-width: 640px) 50vw, (max-width: 768px) 33vw, (max-width: 1024px) 25vw, 16vw"
        onLoad={() => setIsLoaded(true)}
        onError={() => setHasError(true)}
-        unoptimized
      />
    </div>
  );
-}
+});

-export function BookCard({ book, readingStatus }: BookCardProps) {
+export const BookCard = memo(function BookCard({ book, readingStatus }: BookCardProps) {
+  const { t } = useTranslation();
  const coverUrl = book.coverUrl || `/api/books/${book.id}/thumbnail`;
  const status = readingStatus ?? book.reading_status;
-  const overlay = status ? readingStatusOverlay[status] : null;
+  const overlayClass = status ? readingStatusOverlayClasses[status] : null;
+  const statusLabels: Record<ReadingStatus, string> = {
+    unread: t("status.unread"),
+    reading: t("status.reading"),
+    read: t("status.read"),
+  };

  const isRead = status === "read";

@@ -71,11 +77,11 @@ export function BookCard({ book, readingStatus }: BookCardProps) {
      <div className="relative">
        <BookImage
          src={coverUrl}
-          alt={`Cover of ${book.title}`}
+          alt={t("books.coverOf", { name: book.title })}
        />
-        {overlay && (
-          <span className={`absolute bottom-2 left-2 px-2 py-0.5 rounded-full text-[10px] font-bold tracking-wide ${overlay.className}`}>
-            {overlay.label}
+        {overlayClass && status && (
+          <span className={`absolute bottom-2 left-2 px-2 py-0.5 rounded-full text-[10px] font-bold tracking-wide ${overlayClass}`}>
+            {statusLabels[status]}
          </span>
        )}
      </div>
@@ -108,6 +114,7 @@ export function BookCard({ book, readingStatus }: BookCardProps) {
              ${(book.format ?? book.kind) === 'cbz' ? 'bg-success/10 text-success' : ''}
              ${(book.format ?? book.kind) === 'cbr' ? 'bg-warning/10 text-warning' : ''}
              ${(book.format ?? book.kind) === 'pdf' ? 'bg-destructive/10 text-destructive' : ''}
+              ${(book.format ?? book.kind) === 'epub' ? 'bg-info/10 text-info' : ''}
            `}>
              {book.format ?? book.kind}
            </span>
@@ -121,7 +128,7 @@ export function BookCard({ book, readingStatus }: BookCardProps) {
      </div>
    </Link>
  );
-}
+});

 interface BooksGridProps {
  books: (BookDto & { coverUrl?: string })[];
--- a/apps/backoffice/app/components/BookPreview.tsx
+++ b/apps/backoffice/app/components/BookPreview.tsx
@@ -2,10 +2,12 @@

 import { useState } from "react";
 import Image from "next/image";
+import { useTranslation } from "../../lib/i18n/context";

 const PAGE_SIZE = 5;

 export function BookPreview({ bookId, pageCount }: { bookId: string; pageCount: number }) {
+  const { t } = useTranslation();
  const [offset, setOffset] = useState(0);

  const pages = Array.from({ length: PAGE_SIZE }, (_, i) => offset + i + 1).filter(
@@ -16,9 +18,9 @@ export function BookPreview({ bookId, pageCount }: { bookId: string; pageCount:
    <div className="bg-card rounded-xl border border-border p-6">
      <div className="flex items-center justify-between mb-4">
        <h2 className="text-lg font-semibold text-foreground">
-          Preview
+          {t("bookPreview.preview")}
          <span className="ml-2 text-sm font-normal text-muted-foreground">
-            pages {offset + 1}–{Math.min(offset + PAGE_SIZE, pageCount)} / {pageCount}
+            {t("bookPreview.pages", { start: offset + 1, end: Math.min(offset + PAGE_SIZE, pageCount), total: pageCount })}
          </span>
        </h2>
        <div className="flex gap-2">
@@ -27,14 +29,14 @@ export function BookPreview({ bookId, pageCount }: { bookId: string; pageCount:
            disabled={offset === 0}
            className="px-3 py-1.5 text-sm rounded-lg border border-border bg-muted/50 text-foreground hover:bg-muted disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
          >
-            ← Prev
+            {t("bookPreview.prev")}
          </button>
          <button
            onClick={() => setOffset((o) => Math.min(o + PAGE_SIZE, pageCount - 1))}
            disabled={offset + PAGE_SIZE >= pageCount}
            className="px-3 py-1.5 text-sm rounded-lg border border-border bg-muted/50 text-foreground hover:bg-muted disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
          >
-            Next →
+            {t("bookPreview.next")}
          </button>
        </div>
      </div>
--- a/apps/backoffice/app/components/ConvertButton.tsx
+++ b/apps/backoffice/app/components/ConvertButton.tsx
@@ -3,6 +3,7 @@
 import { useState } from "react";
 import Link from "next/link";
 import { Button } from "./ui";
+import { useTranslation } from "../../lib/i18n/context";

 interface ConvertButtonProps {
  bookId: string;
@@ -15,6 +16,7 @@ type ConvertState =
  | { type: "error"; message: string };

 export function ConvertButton({ bookId }: ConvertButtonProps) {
+  const { t } = useTranslation();
  const [state, setState] = useState<ConvertState>({ type: "idle" });

  const handleConvert = async () => {
@@ -23,22 +25,22 @@ export function ConvertButton({ bookId }: ConvertButtonProps) {
      const res = await fetch(`/api/books/${bookId}/convert`, { method: "POST" });
      if (!res.ok) {
        const body = await res.json().catch(() => ({ error: res.statusText }));
-        setState({ type: "error", message: body.error || "Conversion failed" });
+        setState({ type: "error", message: body.error || t("convert.failed") });
        return;
      }
      const job = await res.json();
      setState({ type: "success", jobId: job.id });
    } catch (err) {
-      setState({ type: "error", message: err instanceof Error ? err.message : "Unknown error" });
+      setState({ type: "error", message: err instanceof Error ? err.message : t("convert.unknownError") });
    }
  };

  if (state.type === "success") {
    return (
      <div className="flex items-center gap-2 text-sm text-success">
-        <span>Conversion started.</span>
+        <span>{t("convert.started")}</span>
        <Link href={`/jobs/${state.jobId}`} className="text-primary hover:underline font-medium">
-          View job →
+          {t("convert.viewJob")}
        </Link>
      </div>
    );
@@ -52,7 +54,7 @@ export function ConvertButton({ bookId }: ConvertButtonProps) {
          className="text-xs text-muted-foreground hover:underline text-left"
          onClick={() => setState({ type: "idle" })}
        >
-          Dismiss
+          {t("common.close")}
        </button>
      </div>
    );
@@ -65,7 +67,7 @@ export function ConvertButton({ bookId }: ConvertButtonProps) {
      onClick={handleConvert}
      disabled={state.type === "loading"}
    >
-      {state.type === "loading" ? "Converting…" : "Convert to CBZ"}
+      {state.type === "loading" ? t("convert.converting") : t("convert.convertToCbz")}
    </Button>
  );
 }
--- a/apps/backoffice/app/components/DashboardCharts.tsx
+++ b/apps/backoffice/app/components/DashboardCharts.tsx
@@ -0,0 +1,231 @@
+"use client";
+
+import {
+  PieChart, Pie, Cell, ResponsiveContainer, Tooltip,
+  BarChart, Bar, XAxis, YAxis, CartesianGrid,
+  AreaChart, Area, Line, LineChart,
+  Legend,
+} from "recharts";
+
+// ---------------------------------------------------------------------------
+// Donut
+// ---------------------------------------------------------------------------
+
+export function RcDonutChart({
+  data,
+  noDataLabel,
+}: {
+  data: { name: string; value: number; color: string }[];
+  noDataLabel?: string;
+}) {
+  const total = data.reduce((s, d) => s + d.value, 0);
+  if (total === 0) return <p className="text-muted-foreground text-sm text-center py-8">{noDataLabel}</p>;
+
+  return (
+    <div className="flex items-center gap-4">
+      <ResponsiveContainer width={130} height={130}>
+        <PieChart>
+          <Pie
+            data={data}
+            cx="50%"
+            cy="50%"
+            innerRadius={32}
+            outerRadius={55}
+            dataKey="value"
+            strokeWidth={0}
+          >
+            {data.map((d, i) => (
+              <Cell key={i} fill={d.color} />
+            ))}
+          </Pie>
+          <Tooltip
+            formatter={(value) => value}
+            contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+          />
+        </PieChart>
+      </ResponsiveContainer>
+      <div className="flex flex-col gap-1.5 min-w-0">
+        {data.map((d, i) => (
+          <div key={i} className="flex items-center gap-2 text-sm">
+            <span className="w-3 h-3 rounded-full shrink-0" style={{ backgroundColor: d.color }} />
+            <span className="text-muted-foreground truncate">{d.name}</span>
+            <span className="font-medium text-foreground ml-auto">{d.value}</span>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Bar chart
+// ---------------------------------------------------------------------------
+
+export function RcBarChart({
+  data,
+  color = "hsl(198 78% 37%)",
+  noDataLabel,
+}: {
+  data: { label: string; value: number }[];
+  color?: string;
+  noDataLabel?: string;
+}) {
+  if (data.length === 0) return <p className="text-muted-foreground text-sm text-center py-8">{noDataLabel}</p>;
+
+  return (
+    <ResponsiveContainer width="100%" height={180}>
+      <BarChart data={data} margin={{ top: 5, right: 5, bottom: 0, left: -20 }}>
+        <CartesianGrid strokeDasharray="3 3" vertical={false} stroke="var(--color-border)" opacity={0.3} />
+        <XAxis dataKey="label" tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} />
+        <YAxis tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} allowDecimals={false} />
+        <Tooltip
+          contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+        />
+        <Bar dataKey="value" fill={color} radius={[4, 4, 0, 0]} />
+      </BarChart>
+    </ResponsiveContainer>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Area / Line chart
+// ---------------------------------------------------------------------------
+
+export function RcAreaChart({
+  data,
+  color = "hsl(142 60% 45%)",
+  noDataLabel,
+}: {
+  data: { label: string; value: number }[];
+  color?: string;
+  noDataLabel?: string;
+}) {
+  if (data.length === 0) return <p className="text-muted-foreground text-sm text-center py-8">{noDataLabel}</p>;
+
+  return (
+    <ResponsiveContainer width="100%" height={180}>
+      <AreaChart data={data} margin={{ top: 5, right: 5, bottom: 0, left: -20 }}>
+        <defs>
+          <linearGradient id="areaGradient" x1="0" y1="0" x2="0" y2="1">
+            <stop offset="0%" stopColor={color} stopOpacity={0.3} />
+            <stop offset="100%" stopColor={color} stopOpacity={0} />
+          </linearGradient>
+        </defs>
+        <CartesianGrid strokeDasharray="3 3" vertical={false} stroke="var(--color-border)" opacity={0.3} />
+        <XAxis dataKey="label" tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} />
+        <YAxis tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} allowDecimals={false} />
+        <Tooltip
+          contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+        />
+        <Area type="monotone" dataKey="value" stroke={color} strokeWidth={2} fill="url(#areaGradient)" dot={{ r: 3, fill: color }} />
+      </AreaChart>
+    </ResponsiveContainer>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Horizontal stacked bar (libraries breakdown)
+// ---------------------------------------------------------------------------
+
+export function RcStackedBar({
+  data,
+  labels,
+}: {
+  data: { name: string; read: number; reading: number; unread: number; sizeLabel: string }[];
+  labels: { read: string; reading: string; unread: string; books: string };
+}) {
+  if (data.length === 0) return null;
+
+  return (
+    <ResponsiveContainer width="100%" height={data.length * 60 + 30}>
+      <BarChart data={data} layout="vertical" margin={{ top: 0, right: 5, bottom: 0, left: 5 }}>
+        <CartesianGrid strokeDasharray="3 3" horizontal={false} stroke="var(--color-border)" opacity={0.3} />
+        <XAxis type="number" tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} allowDecimals={false} />
+        <YAxis type="category" dataKey="name" tick={{ fontSize: 12, fill: "var(--color-foreground)" }} axisLine={false} tickLine={false} width={120} />
+        <Tooltip
+          contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+        />
+        <Legend
+          wrapperStyle={{ fontSize: 11 }}
+          formatter={(value: string) => <span className="text-muted-foreground">{value}</span>}
+        />
+        <Bar dataKey="read" stackId="a" fill="hsl(142 60% 45%)" name={labels.read} radius={[0, 0, 0, 0]} />
+        <Bar dataKey="reading" stackId="a" fill="hsl(45 93% 47%)" name={labels.reading} />
+        <Bar dataKey="unread" stackId="a" fill="hsl(220 13% 70%)" name={labels.unread} radius={[0, 4, 4, 0]} />
+      </BarChart>
+    </ResponsiveContainer>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Horizontal bar chart (top series)
+// ---------------------------------------------------------------------------
+
+export function RcHorizontalBar({
+  data,
+  color = "hsl(142 60% 45%)",
+  noDataLabel,
+}: {
+  data: { name: string; value: number; subLabel: string }[];
+  color?: string;
+  noDataLabel?: string;
+}) {
+  if (data.length === 0) return <p className="text-muted-foreground text-sm text-center py-4">{noDataLabel}</p>;
+
+  return (
+    <ResponsiveContainer width="100%" height={data.length * 40 + 10}>
+      <BarChart data={data} layout="vertical" margin={{ top: 0, right: 5, bottom: 0, left: 5 }}>
+        <CartesianGrid strokeDasharray="3 3" horizontal={false} stroke="var(--color-border)" opacity={0.3} />
+        <XAxis type="number" tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} allowDecimals={false} />
+        <YAxis type="category" dataKey="name" tick={{ fontSize: 11, fill: "var(--color-foreground)" }} axisLine={false} tickLine={false} width={120} />
+        <Tooltip
+          contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+        />
+        <Bar dataKey="value" fill={color} radius={[0, 4, 4, 0]} />
+      </BarChart>
+    </ResponsiveContainer>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Multi-line chart (jobs over time)
+// ---------------------------------------------------------------------------
+
+export function RcMultiLineChart({
+  data,
+  lines,
+  noDataLabel,
+}: {
+  data: Record<string, unknown>[];
+  lines: { key: string; label: string; color: string }[];
+  noDataLabel?: string;
+}) {
+  const hasData = data.some((d) => lines.some((l) => (d[l.key] as number) > 0));
+  if (data.length === 0 || !hasData)
+    return <p className="text-muted-foreground text-sm text-center py-8">{noDataLabel}</p>;
+
+  return (
+    <ResponsiveContainer width="100%" height={180}>
+      <LineChart data={data} margin={{ top: 5, right: 5, bottom: 0, left: -20 }}>
+        <CartesianGrid strokeDasharray="3 3" vertical={false} stroke="var(--color-border)" opacity={0.3} />
+        <XAxis dataKey="label" tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} />
+        <YAxis tick={{ fontSize: 11, fill: "var(--color-muted-foreground)" }} axisLine={false} tickLine={false} allowDecimals={false} />
+        <Tooltip
+          contentStyle={{ backgroundColor: "var(--color-card)", border: "1px solid var(--color-border)", borderRadius: 8, fontSize: 12 }}
+        />
+        <Legend wrapperStyle={{ fontSize: 11 }} />
+        {lines.map((l) => (
+          <Line
+            key={l.key}
+            type="monotone"
+            dataKey={l.key}
+            name={l.label}
+            stroke={l.color}
+            strokeWidth={2}
+            dot={{ r: 3, fill: l.color }}
+          />
+        ))}
+      </LineChart>
+    </ResponsiveContainer>
+  );
+}
--- a/apps/backoffice/app/components/EditBookForm.tsx
+++ b/apps/backoffice/app/components/EditBookForm.tsx
@@ -5,12 +5,49 @@ import { createPortal } from "react-dom";
 import { useRouter } from "next/navigation";
 import { BookDto } from "@/lib/api";
 import { FormField, FormLabel, FormInput } from "./ui/Form";
+import { useTranslation } from "../../lib/i18n/context";
+
+function LockButton({
+  locked,
+  onToggle,
+  disabled,
+}: {
+  locked: boolean;
+  onToggle: () => void;
+  disabled?: boolean;
+}) {
+  const { t } = useTranslation();
+  return (
+    <button
+      type="button"
+      onClick={onToggle}
+      disabled={disabled}
+      className={`p-1 rounded transition-colors ${
+        locked
+          ? "text-amber-500 hover:text-amber-600"
+          : "text-muted-foreground/40 hover:text-muted-foreground"
+      }`}
+      title={locked ? t("editBook.lockedField") : t("editBook.clickToLock")}
+    >
+      {locked ? (
+        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+        </svg>
+      ) : (
+        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 11V7a4 4 0 118 0m-4 8v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2z" />
+        </svg>
+      )}
+    </button>
+  );
+}

 interface EditBookFormProps {
  book: BookDto;
 }

 export function EditBookForm({ book }: EditBookFormProps) {
+  const { t } = useTranslation();
  const router = useRouter();
  const [isPending, startTransition] = useTransition();
  const [isOpen, setIsOpen] = useState(false);
@@ -23,6 +60,14 @@ export function EditBookForm({ book }: EditBookFormProps) {
  const [series, setSeries] = useState(book.series ?? "");
  const [volume, setVolume] = useState(book.volume?.toString() ?? "");
  const [language, setLanguage] = useState(book.language ?? "");
+  const [summary, setSummary] = useState(book.summary ?? "");
+  const [isbn, setIsbn] = useState(book.isbn ?? "");
+  const [publishDate, setPublishDate] = useState(book.publish_date ?? "");
+  const [lockedFields, setLockedFields] = useState<Record<string, boolean>>(book.locked_fields ?? {});
+
+  const toggleLock = (field: string) => {
+    setLockedFields((prev) => ({ ...prev, [field]: !prev[field] }));
+  };

  const addAuthor = () => {
    const v = authorInput.trim();
@@ -51,6 +96,10 @@ export function EditBookForm({ book }: EditBookFormProps) {
    setSeries(book.series ?? "");
    setVolume(book.volume?.toString() ?? "");
    setLanguage(book.language ?? "");
+    setSummary(book.summary ?? "");
+    setIsbn(book.isbn ?? "");
+    setPublishDate(book.publish_date ?? "");
+    setLockedFields(book.locked_fields ?? {});
    setError(null);
    setIsOpen(false);
  }, [book]);
@@ -85,17 +134,21 @@ export function EditBookForm({ book }: EditBookFormProps) {
            series: series.trim() || null,
            volume: volume.trim() ? parseInt(volume.trim(), 10) : null,
            language: language.trim() || null,
+            summary: summary.trim() || null,
+            isbn: isbn.trim() || null,
+            publish_date: publishDate.trim() || null,
+            locked_fields: lockedFields,
          }),
        });
        if (!res.ok) {
          const data = await res.json();
-          setError(data.error ?? "Erreur lors de la sauvegarde");
+          setError(data.error ?? t("editBook.saveError"));
          return;
        }
        setIsOpen(false);
        router.refresh();
      } catch {
-        setError("Erreur réseau");
+        setError(t("common.networkError"));
      }
    });
  };
@@ -113,7 +166,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
        <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
          {/* Header */}
          <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
-            <h3 className="font-semibold text-foreground">Modifier les métadonnées</h3>
+            <h3 className="font-semibold text-foreground">{t("editBook.editMetadata")}</h3>
            <button
              type="button"
              onClick={handleClose}
@@ -130,18 +183,24 @@ export function EditBookForm({ book }: EditBookFormProps) {
          <form onSubmit={handleSubmit} className="p-5 space-y-5">
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
              <FormField className="sm:col-span-2">
-                <FormLabel required>Titre</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel required>{t("editBook.title")}</FormLabel>
+                  <LockButton locked={!!lockedFields.title} onToggle={() => toggleLock("title")} disabled={isPending} />
+                </div>
                <FormInput
                  value={title}
                  onChange={(e) => setTitle(e.target.value)}
                  disabled={isPending}
-                  placeholder="Titre du livre"
+                  placeholder={t("editBook.titlePlaceholder")}
                />
              </FormField>

              {/* Auteurs — multi-valeur */}
              <FormField className="sm:col-span-2">
-                <FormLabel>Auteur(s)</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.authors")}</FormLabel>
+                  <LockButton locked={!!lockedFields.authors} onToggle={() => toggleLock("authors")} disabled={isPending} />
+                </div>
                <div className="space-y-2">
                  {authors.length > 0 && (
                    <div className="flex flex-wrap gap-1.5">
@@ -156,7 +215,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
                            onClick={() => removeAuthor(i)}
                            disabled={isPending}
                            className="hover:text-destructive transition-colors ml-0.5"
-                            aria-label={`Supprimer ${a}`}
+                            aria-label={t("editBook.removeAuthor", { name: a })}
                          >
                            ×
                          </button>
@@ -171,7 +230,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
                      onChange={(e) => setAuthorInput(e.target.value)}
                      onKeyDown={handleAuthorKeyDown}
                      disabled={isPending}
-                      placeholder="Ajouter un auteur (Entrée pour valider)"
+                      placeholder={t("editBook.addAuthor")}
                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
                    />
                    <button
@@ -187,38 +246,98 @@ export function EditBookForm({ book }: EditBookFormProps) {
              </FormField>

              <FormField>
-                <FormLabel>Langue</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.language")}</FormLabel>
+                  <LockButton locked={!!lockedFields.language} onToggle={() => toggleLock("language")} disabled={isPending} />
+                </div>
                <FormInput
                  value={language}
                  onChange={(e) => setLanguage(e.target.value)}
                  disabled={isPending}
-                  placeholder="ex : fr, en, jp"
+                  placeholder={t("editBook.languagePlaceholder")}
                />
              </FormField>

              <FormField>
-                <FormLabel>Série</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.series")}</FormLabel>
+                  <LockButton locked={!!lockedFields.series} onToggle={() => toggleLock("series")} disabled={isPending} />
+                </div>
                <FormInput
                  value={series}
                  onChange={(e) => setSeries(e.target.value)}
                  disabled={isPending}
-                  placeholder="Nom de la série"
+                  placeholder={t("editBook.seriesPlaceholder")}
                />
              </FormField>

              <FormField>
-                <FormLabel>Volume</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.volume")}</FormLabel>
+                  <LockButton locked={!!lockedFields.volume} onToggle={() => toggleLock("volume")} disabled={isPending} />
+                </div>
                <FormInput
                  type="number"
                  min="1"
                  value={volume}
                  onChange={(e) => setVolume(e.target.value)}
                  disabled={isPending}
-                  placeholder="Numéro de volume"
+                  placeholder={t("editBook.volumePlaceholder")}
+                />
+              </FormField>
+
+              <FormField>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.isbn")}</FormLabel>
+                  <LockButton locked={!!lockedFields.isbn} onToggle={() => toggleLock("isbn")} disabled={isPending} />
+                </div>
+                <FormInput
+                  value={isbn}
+                  onChange={(e) => setIsbn(e.target.value)}
+                  disabled={isPending}
+                  placeholder="ISBN"
+                />
+              </FormField>
+
+              <FormField>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.publishDate")}</FormLabel>
+                  <LockButton locked={!!lockedFields.publish_date} onToggle={() => toggleLock("publish_date")} disabled={isPending} />
+                </div>
+                <FormInput
+                  value={publishDate}
+                  onChange={(e) => setPublishDate(e.target.value)}
+                  disabled={isPending}
+                  placeholder={t("editBook.publishDatePlaceholder")}
+                />
+              </FormField>
+
+              <FormField className="sm:col-span-2">
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.description")}</FormLabel>
+                  <LockButton locked={!!lockedFields.summary} onToggle={() => toggleLock("summary")} disabled={isPending} />
+                </div>
+                <textarea
+                  value={summary}
+                  onChange={(e) => setSummary(e.target.value)}
+                  disabled={isPending}
+                  placeholder={t("editBook.descriptionPlaceholder")}
+                  rows={4}
+                  className="flex w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 resize-y"
                />
              </FormField>
            </div>

+            {/* Lock legend */}
+            {Object.values(lockedFields).some(Boolean) && (
+              <p className="text-xs text-amber-500 flex items-center gap-1.5">
+                <svg className="w-3.5 h-3.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+                </svg>
+                {t("editBook.lockedFieldsNote")}
+              </p>
+            )}
+
            {error && (
              <p className="text-xs text-destructive">{error}</p>
            )}
@@ -231,14 +350,14 @@ export function EditBookForm({ book }: EditBookFormProps) {
                disabled={isPending}
                className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
              >
-                Annuler
+                {t("common.cancel")}
              </button>
              <button
                type="submit"
                disabled={isPending || !title.trim()}
                className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
              >
-                {isPending ? "Sauvegarde…" : "Sauvegarder"}
+                {isPending ? t("editBook.savingLabel") : t("editBook.saveLabel")}
              </button>
            </div>
          </form>
@@ -254,7 +373,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
        onClick={() => setIsOpen(true)}
        className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
      >
-        <span>✏️</span> Modifier
+        <span>✏️</span> {t("editBook.editMetadata")}
      </button>
      {modal}
    </>
--- a/apps/backoffice/app/components/EditSeriesForm.tsx
+++ b/apps/backoffice/app/components/EditSeriesForm.tsx
@@ -4,6 +4,44 @@ import { useState, useTransition, useEffect, useCallback } from "react";
 import { createPortal } from "react-dom";
 import { useRouter } from "next/navigation";
 import { FormField, FormLabel, FormInput } from "./ui/Form";
+import { useTranslation } from "../../lib/i18n/context";
+
+function LockButton({
+  locked,
+  onToggle,
+  disabled,
+}: {
+  locked: boolean;
+  onToggle: () => void;
+  disabled?: boolean;
+}) {
+  const { t } = useTranslation();
+  return (
+    <button
+      type="button"
+      onClick={onToggle}
+      disabled={disabled}
+      className={`p-1 rounded transition-colors ${
+        locked
+          ? "text-amber-500 hover:text-amber-600"
+          : "text-muted-foreground/40 hover:text-muted-foreground"
+      }`}
+      title={locked ? t("editBook.lockedField") : t("editBook.clickToLock")}
+    >
+      {locked ? (
+        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+        </svg>
+      ) : (
+        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 11V7a4 4 0 118 0m-4 8v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2z" />
+        </svg>
+      )}
+    </button>
+  );
+}
+
+const SERIES_STATUS_VALUES = ["", "ongoing", "ended", "hiatus", "cancelled", "upcoming"] as const;

 interface EditSeriesFormProps {
  libraryId: string;
@@ -14,6 +52,9 @@ interface EditSeriesFormProps {
  currentBookLanguage: string | null;
  currentDescription: string | null;
  currentStartYear: number | null;
+  currentTotalVolumes: number | null;
+  currentStatus: string | null;
+  currentLockedFields: Record<string, boolean>;
 }

 export function EditSeriesForm({
@@ -25,7 +66,11 @@ export function EditSeriesForm({
  currentBookLanguage,
  currentDescription,
  currentStartYear,
+  currentTotalVolumes,
+  currentStatus,
+  currentLockedFields,
 }: EditSeriesFormProps) {
+  const { t } = useTranslation();
  const router = useRouter();
  const [isPending, startTransition] = useTransition();
  const [isOpen, setIsOpen] = useState(false);
@@ -41,12 +86,21 @@ export function EditSeriesForm({
  const [publisherInputEl, setPublisherInputEl] = useState<HTMLInputElement | null>(null);
  const [description, setDescription] = useState(currentDescription ?? "");
  const [startYear, setStartYear] = useState(currentStartYear?.toString() ?? "");
+  const [totalVolumes, setTotalVolumes] = useState(currentTotalVolumes?.toString() ?? "");
+  const [status, setStatus] = useState(currentStatus ?? "");
+
+  // Lock states
+  const [lockedFields, setLockedFields] = useState<Record<string, boolean>>(currentLockedFields);

  // Propagation aux livres — opt-in via bouton
  const [bookAuthor, setBookAuthor] = useState(currentBookAuthor ?? "");
  const [bookLanguage, setBookLanguage] = useState(currentBookLanguage ?? "");
  const [showApplyToBooks, setShowApplyToBooks] = useState(false);

+  const toggleLock = (field: string) => {
+    setLockedFields((prev) => ({ ...prev, [field]: !prev[field] }));
+  };
+
  const addAuthor = () => {
    const v = authorInput.trim();
    if (v && !authors.includes(v)) {
@@ -95,12 +149,15 @@ export function EditSeriesForm({
    setPublisherInput("");
    setDescription(currentDescription ?? "");
    setStartYear(currentStartYear?.toString() ?? "");
+    setTotalVolumes(currentTotalVolumes?.toString() ?? "");
+    setStatus(currentStatus ?? "");
+    setLockedFields(currentLockedFields);
    setShowApplyToBooks(false);
    setBookAuthor(currentBookAuthor ?? "");
    setBookLanguage(currentBookLanguage ?? "");
    setError(null);
    setIsOpen(false);
-  }, [seriesName, currentAuthors, currentPublishers, currentDescription, currentStartYear, currentBookAuthor, currentBookLanguage]);
+  }, [seriesName, currentAuthors, currentPublishers, currentDescription, currentStartYear, currentTotalVolumes, currentBookAuthor, currentBookLanguage, currentLockedFields]);

  useEffect(() => {
    if (!isOpen) return;
@@ -133,6 +190,9 @@ export function EditSeriesForm({
          publishers: finalPublishers,
          description: description.trim() || null,
          start_year: startYear.trim() ? parseInt(startYear.trim(), 10) : null,
+          total_volumes: totalVolumes.trim() ? parseInt(totalVolumes.trim(), 10) : null,
+          status: status || null,
+          locked_fields: lockedFields,
        };
        if (showApplyToBooks) {
          body.author = bookAuthor.trim() || null;
@@ -149,7 +209,7 @@ export function EditSeriesForm({
        );
        if (!res.ok) {
          const data = await res.json();
-          setError(data.error ?? "Erreur lors de la sauvegarde");
+          setError(data.error ?? t("editBook.saveError"));
          return;
        }
        setIsOpen(false);
@@ -160,7 +220,7 @@ export function EditSeriesForm({
          router.refresh();
        }
      } catch {
-        setError("Erreur réseau");
+        setError(t("common.networkError"));
      }
    });
  };
@@ -178,7 +238,7 @@ export function EditSeriesForm({
        <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
          {/* Header */}
          <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
-            <h3 className="font-semibold text-foreground">Modifier la série</h3>
+            <h3 className="font-semibold text-foreground">{t("editSeries.title")}</h3>
            <button
              type="button"
              onClick={handleClose}
@@ -195,17 +255,20 @@ export function EditSeriesForm({
          <form onSubmit={handleSubmit} className="p-5 space-y-5">
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
              <FormField>
-                <FormLabel required>Nom</FormLabel>
+                <FormLabel required>{t("editSeries.name")}</FormLabel>
                <FormInput
                  value={newName}
                  onChange={(e) => setNewName(e.target.value)}
                  disabled={isPending}
-                  placeholder="Nom de la série"
+                  placeholder={t("editSeries.namePlaceholder")}
                />
              </FormField>

              <FormField>
-                <FormLabel>Année de début</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editSeries.startYear")}</FormLabel>
+                  <LockButton locked={!!lockedFields.start_year} onToggle={() => toggleLock("start_year")} disabled={isPending} />
+                </div>
                <FormInput
                  type="number"
                  min="1900"
@@ -213,13 +276,50 @@ export function EditSeriesForm({
                  value={startYear}
                  onChange={(e) => setStartYear(e.target.value)}
                  disabled={isPending}
-                  placeholder="ex : 1990"
+                  placeholder={t("editSeries.startYearPlaceholder")}
                />
              </FormField>

+              <FormField>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editSeries.totalVolumes")}</FormLabel>
+                  <LockButton locked={!!lockedFields.total_volumes} onToggle={() => toggleLock("total_volumes")} disabled={isPending} />
+                </div>
+                <FormInput
+                  type="number"
+                  min="1"
+                  value={totalVolumes}
+                  onChange={(e) => setTotalVolumes(e.target.value)}
+                  disabled={isPending}
+                  placeholder="12"
+                />
+              </FormField>
+
+              <FormField>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editSeries.status")}</FormLabel>
+                  <LockButton locked={!!lockedFields.status} onToggle={() => toggleLock("status")} disabled={isPending} />
+                </div>
+                <select
+                  value={status}
+                  onChange={(e) => setStatus(e.target.value)}
+                  disabled={isPending}
+                  className="w-full rounded-lg border border-border bg-background px-3 py-2 text-sm text-foreground focus:outline-none focus:ring-2 focus:ring-primary/40"
+                >
+                  {SERIES_STATUS_VALUES.map((v) => (
+                    <option key={v} value={v}>
+                      {v === "" ? t("seriesStatus.notDefined") : t(`seriesStatus.${v}` as any)}
+                    </option>
+                  ))}
+                </select>
+              </FormField>
+
              {/* Auteurs — multi-valeur */}
              <FormField className="sm:col-span-2">
-                <FormLabel>Auteur(s)</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editSeries.authors")}</FormLabel>
+                  <LockButton locked={!!lockedFields.authors} onToggle={() => toggleLock("authors")} disabled={isPending} />
+                </div>
                <div className="space-y-2">
                  {authors.length > 0 && (
                    <div className="flex flex-wrap gap-1.5">
@@ -234,7 +334,7 @@ export function EditSeriesForm({
                            onClick={() => removeAuthor(i)}
                            disabled={isPending}
                            className="hover:text-destructive transition-colors ml-0.5"
-                            aria-label={`Supprimer ${a}`}
+                            aria-label={t("editBook.removeAuthor", { name: a })}
                          >
                            ×
                          </button>
@@ -249,7 +349,7 @@ export function EditSeriesForm({
                      onChange={(e) => setAuthorInput(e.target.value)}
                      onKeyDown={handleAuthorKeyDown}
                      disabled={isPending}
-                      placeholder="Ajouter un auteur (Entrée pour valider)"
+                      placeholder={t("editBook.addAuthor")}
                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
                    />
                    <button
@@ -269,9 +369,9 @@ export function EditSeriesForm({
                          ? "border-primary bg-primary/10 text-primary"
                          : "border-border bg-card text-muted-foreground hover:text-foreground"
                      }`}
-                      title="Appliquer auteur et langue à tous les livres de la série"
+                      title={t("editSeries.applyToBooksTitle")}
                    >
-                      → livres
+                      {t("editSeries.applyToBooks")}
                    </button>
                  </div>
                </div>
@@ -280,21 +380,21 @@ export function EditSeriesForm({
              {showApplyToBooks && (
                <div className="sm:col-span-2 grid grid-cols-1 sm:grid-cols-2 gap-3 pl-4 border-l-2 border-primary/30">
                  <FormField>
-                    <FormLabel>Auteur (livres)</FormLabel>
+                    <FormLabel>{t("editSeries.bookAuthor")}</FormLabel>
                    <FormInput
                      value={bookAuthor}
                      onChange={(e) => setBookAuthor(e.target.value)}
                      disabled={isPending}
-                      placeholder="Écrase le champ auteur de chaque livre"
+                      placeholder={t("editSeries.bookAuthorPlaceholder")}
                    />
                  </FormField>
                  <FormField>
-                    <FormLabel>Langue (livres)</FormLabel>
+                    <FormLabel>{t("editSeries.bookLanguage")}</FormLabel>
                    <FormInput
                      value={bookLanguage}
                      onChange={(e) => setBookLanguage(e.target.value)}
                      disabled={isPending}
-                      placeholder="ex : fr, en, jp"
+                      placeholder={t("editBook.languagePlaceholder")}
                    />
                  </FormField>
                </div>
@@ -302,7 +402,10 @@ export function EditSeriesForm({

              {/* Éditeurs — multi-valeur */}
              <FormField className="sm:col-span-2">
-                <FormLabel>Éditeur(s)</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editSeries.publishers")}</FormLabel>
+                  <LockButton locked={!!lockedFields.publishers} onToggle={() => toggleLock("publishers")} disabled={isPending} />
+                </div>
                <div className="space-y-2">
                  {publishers.length > 0 && (
                    <div className="flex flex-wrap gap-1.5">
@@ -317,7 +420,7 @@ export function EditSeriesForm({
                            onClick={() => removePublisher(i)}
                            disabled={isPending}
                            className="hover:text-destructive transition-colors ml-0.5"
-                            aria-label={`Supprimer ${p}`}
+                            aria-label={t("editBook.removeAuthor", { name: p })}
                          >
                            ×
                          </button>
@@ -332,7 +435,7 @@ export function EditSeriesForm({
                      onChange={(e) => setPublisherInput(e.target.value)}
                      onKeyDown={handlePublisherKeyDown}
                      disabled={isPending}
-                      placeholder="Ajouter un éditeur (Entrée pour valider)"
+                      placeholder={t("editSeries.addPublisher")}
                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
                    />
                    <button
@@ -348,18 +451,31 @@ export function EditSeriesForm({
              </FormField>

              <FormField className="sm:col-span-2">
-                <FormLabel>Description</FormLabel>
+                <div className="flex items-center gap-1">
+                  <FormLabel>{t("editBook.description")}</FormLabel>
+                  <LockButton locked={!!lockedFields.description} onToggle={() => toggleLock("description")} disabled={isPending} />
+                </div>
                <textarea
                  value={description}
                  onChange={(e) => setDescription(e.target.value)}
                  disabled={isPending}
                  rows={3}
-                  placeholder="Synopsis ou description de la série…"
+                  placeholder={t("editSeries.descriptionPlaceholder")}
                  className="flex w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 resize-none"
                />
              </FormField>
            </div>

+            {/* Lock legend */}
+            {Object.values(lockedFields).some(Boolean) && (
+              <p className="text-xs text-amber-500 flex items-center gap-1.5">
+                <svg className="w-3.5 h-3.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+                </svg>
+                {t("editBook.lockedFieldsNote")}
+              </p>
+            )}
+
            {error && <p className="text-xs text-destructive">{error}</p>}

            {/* Footer */}
@@ -370,14 +486,14 @@ export function EditSeriesForm({
                disabled={isPending}
                className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
              >
-                Annuler
+                {t("common.cancel")}
              </button>
              <button
                type="submit"
                disabled={isPending || (!newName.trim() && seriesName !== "unclassified")}
                className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
              >
-                {isPending ? "Sauvegarde…" : "Sauvegarder"}
+                {isPending ? t("common.saving") : t("common.save")}
              </button>
            </div>
          </form>
@@ -393,7 +509,7 @@ export function EditSeriesForm({
        onClick={() => setIsOpen(true)}
        className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
      >
-        <span>✏️</span> Modifier la série
+        <span>✏️</span> {t("editSeries.title")}
      </button>
      {modal}
    </>
--- a/apps/backoffice/app/components/FolderBrowser.tsx
+++ b/apps/backoffice/app/components/FolderBrowser.tsx
@@ -2,6 +2,7 @@

 import { useState, useCallback } from "react";
 import { FolderItem } from "../../lib/api";
+import { useTranslation } from "../../lib/i18n/context";

 interface TreeNode extends FolderItem {
  children?: TreeNode[];
@@ -15,6 +16,7 @@ interface FolderBrowserProps {
 }

 export function FolderBrowser({ initialFolders, selectedPath, onSelect }: FolderBrowserProps) {
+  const { t } = useTranslation();
  // Convert initial folders to tree structure
  const [tree, setTree] = useState<TreeNode[]>(
    initialFolders.map(f => ({ ...f, children: f.has_children ? [] : undefined }))
@@ -173,7 +175,7 @@ export function FolderBrowser({ initialFolders, selectedPath, onSelect }: Folder
      <div className="max-h-80 overflow-y-auto">
        {tree.length === 0 ? (
          <div className="px-3 py-8 text-sm text-muted-foreground text-center">
-            No folders found
+            {t("folder.noFolders")}
          </div>
        ) : (
          tree.map(node => renderNode(node))
--- a/apps/backoffice/app/components/FolderPicker.tsx
+++ b/apps/backoffice/app/components/FolderPicker.tsx
@@ -1,9 +1,11 @@
 "use client";

 import { useState } from "react";
+import { createPortal } from "react-dom";
 import { FolderBrowser } from "./FolderBrowser";
 import { FolderItem } from "../../lib/api";
 import { Button } from "./ui";
+import { useTranslation } from "../../lib/i18n/context";

 interface FolderPickerProps {
  initialFolders: FolderItem[];
@@ -13,6 +15,7 @@ interface FolderPickerProps {

 export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderPickerProps) {
  const [isOpen, setIsOpen] = useState(false);
+  const { t } = useTranslation();

  const handleSelect = (path: string) => {
    onSelect(path);
@@ -27,7 +30,7 @@ export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderP
          <input
            type="text"
            readOnly
-            value={selectedPath || "Select a folder..."}
+            value={selectedPath || t("folder.selectFolder")}
            className={`
              w-full px-3 py-2 rounded-lg border bg-card
              text-sm font-mono
@@ -57,19 +60,19 @@ export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderP
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
          </svg>
-          Browse
+          {t("common.browse")}
        </Button>
      </div>

      {/* Popup Modal */}
-      {isOpen && (
+      {isOpen && createPortal(
        <>
          {/* Backdrop */}
-          <div 
+          <div
            className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
            onClick={() => setIsOpen(false)}
          />
-          
+
          {/* Modal */}
          <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
            <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-lg overflow-hidden animate-in fade-in zoom-in-95 duration-200">
@@ -79,7 +82,7 @@ export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderP
                  <svg className="w-5 h-5 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
                  </svg>
-                  <span className="font-medium">Select Folder</span>
+                  <span className="font-medium">{t("folder.selectFolderTitle")}</span>
                </div>
                <button
                  type="button"
@@ -104,7 +107,7 @@ export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderP
              {/* Footer */}
              <div className="flex items-center justify-between px-4 py-3 border-t border-border/50 bg-muted/30">
                <span className="text-xs text-muted-foreground">
-                  Click a folder to select it
+                  {t("folder.clickToSelect")}
                </span>
                <div className="flex gap-2">
                  <Button
@@ -113,13 +116,14 @@ export function FolderPicker({ initialFolders, selectedPath, onSelect }: FolderP
                    size="sm"
                    onClick={() => setIsOpen(false)}
                  >
-                    Cancel
+                    {t("common.cancel")}
                  </Button>
                </div>
              </div>
            </div>
          </div>
-        </>
+        </>,
+        document.body
      )}
    </div>
  );
--- a/apps/backoffice/app/components/JobDetailLive.tsx
+++ b/apps/backoffice/app/components/JobDetailLive.tsx
@@ -0,0 +1,44 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+import { useRouter } from "next/navigation";
+
+interface JobDetailLiveProps {
+  jobId: string;
+  isTerminal: boolean;
+}
+
+export function JobDetailLive({ jobId, isTerminal }: JobDetailLiveProps) {
+  const router = useRouter();
+  const isTerminalRef = useRef(isTerminal);
+  isTerminalRef.current = isTerminal;
+
+  useEffect(() => {
+    if (isTerminalRef.current) return;
+
+    const eventSource = new EventSource(`/api/jobs/${jobId}/stream`);
+
+    eventSource.onmessage = (event) => {
+      try {
+        const data = JSON.parse(event.data);
+        router.refresh();
+
+        if (data.status === "success" || data.status === "failed" || data.status === "cancelled") {
+          eventSource.close();
+        }
+      } catch {
+        // ignore parse errors
+      }
+    };
+
+    eventSource.onerror = () => {
+      eventSource.close();
+    };
+
+    return () => {
+      eventSource.close();
+    };
+  }, [jobId, router]);
+
+  return null;
+}
--- a/apps/backoffice/app/components/JobProgress.tsx
+++ b/apps/backoffice/app/components/JobProgress.tsx
@@ -1,6 +1,7 @@
 "use client";

 import { useEffect, useState } from "react";
+import { useTranslation } from "../../lib/i18n/context";
 import { StatusBadge, Badge, ProgressBar } from "./ui";

 interface ProgressEvent {
@@ -24,6 +25,7 @@ interface JobProgressProps {
 }

 export function JobProgress({ jobId, onComplete }: JobProgressProps) {
+  const { t } = useTranslation();
  const [progress, setProgress] = useState<ProgressEvent | null>(null);
  const [error, setError] = useState<string | null>(null);
  const [isComplete, setIsComplete] = useState(false);
@@ -53,25 +55,25 @@ export function JobProgress({ jobId, onComplete }: JobProgressProps) {
          onComplete?.();
        }
      } catch (err) {
-        setError("Failed to parse SSE data");
+        setError(t("jobProgress.sseError"));
      }
    };
    
    eventSource.onerror = (err) => {
      console.error("SSE error:", err);
      eventSource.close();
-      setError("Connection lost");
+      setError(t("jobProgress.connectionLost"));
    };

    return () => {
      eventSource.close();
    };
-  }, [jobId, onComplete]);
+  }, [jobId, onComplete, t]);

  if (error) {
    return (
      <div className="p-4 bg-destructive/10 text-error rounded-lg text-sm">
-        Error: {error}
+        {t("jobProgress.error", { message: error })}
      </div>
    );
  }
@@ -79,7 +81,7 @@ export function JobProgress({ jobId, onComplete }: JobProgressProps) {
  if (!progress) {
    return (
      <div className="p-4 text-muted-foreground text-sm">
-        Loading progress...
+        {t("jobProgress.loadingProgress")}
      </div>
    );
  }
@@ -88,14 +90,14 @@ export function JobProgress({ jobId, onComplete }: JobProgressProps) {
  const processed = progress.processed_files ?? 0;
  const total = progress.total_files ?? 0;
  const isPhase2 = progress.status === "extracting_pages" || progress.status === "generating_thumbnails";
-  const unitLabel = progress.status === "extracting_pages" ? "pages" : progress.status === "generating_thumbnails" ? "thumbnails" : "files";
+  const unitLabel = progress.status === "extracting_pages" ? t("jobProgress.pages") : progress.status === "generating_thumbnails" ? t("jobProgress.thumbnails") : t("jobProgress.filesUnit");

  return (
    <div className="p-4 bg-card rounded-lg border border-border">
      <div className="flex items-center justify-between mb-3">
        <StatusBadge status={progress.status} />
        {isComplete && (
-          <Badge variant="success">Complete</Badge>
+          <Badge variant="success">{t("jobProgress.done")}</Badge>
        )}
      </div>

@@ -105,20 +107,20 @@ export function JobProgress({ jobId, onComplete }: JobProgressProps) {
        <span>{processed} / {total} {unitLabel}</span>
        {progress.current_file && (
          <span className="truncate max-w-md" title={progress.current_file}>
-            Current: {progress.current_file.length > 40 
-              ? progress.current_file.substring(0, 40) + "..." 
-              : progress.current_file}
+            {t("jobProgress.currentFile", { file: progress.current_file.length > 40
+              ? progress.current_file.substring(0, 40) + "..."
+              : progress.current_file })}
          </span>
        )}
      </div>

      {progress.stats_json && !isPhase2 && (
        <div className="flex flex-wrap gap-3 text-xs">
-          <Badge variant="primary">Scanned: {progress.stats_json.scanned_files}</Badge>
-          <Badge variant="success">Indexed: {progress.stats_json.indexed_files}</Badge>
-          <Badge variant="warning">Removed: {progress.stats_json.removed_files}</Badge>
+          <Badge variant="primary">{t("jobProgress.scanned", { count: progress.stats_json.scanned_files })}</Badge>
+          <Badge variant="success">{t("jobProgress.indexed", { count: progress.stats_json.indexed_files })}</Badge>
+          <Badge variant="warning">{t("jobProgress.removed", { count: progress.stats_json.removed_files })}</Badge>
          {progress.stats_json.errors > 0 && (
-            <Badge variant="error">Errors: {progress.stats_json.errors}</Badge>
+            <Badge variant="error">{t("jobProgress.errors", { count: progress.stats_json.errors })}</Badge>
          )}
        </div>
      )}
--- a/apps/backoffice/app/components/JobRow.tsx
+++ b/apps/backoffice/app/components/JobRow.tsx
@@ -2,8 +2,9 @@

 import { useState } from "react";
 import Link from "next/link";
+import { useTranslation } from "../../lib/i18n/context";
 import { JobProgress } from "./JobProgress";
-import { StatusBadge, JobTypeBadge, Button, MiniProgressBar } from "./ui";
+import { StatusBadge, JobTypeBadge, Button, MiniProgressBar, Icon } from "./ui";

 interface JobRowProps {
  job: {
@@ -33,6 +34,7 @@ interface JobRowProps {
 }

 export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, formatDuration }: JobRowProps) {
+  const { t } = useTranslation();
  const isActive = job.status === "running" || job.status === "pending" || job.status === "extracting_pages" || job.status === "generating_thumbnails";
  const [showProgress, setShowProgress] = useState(highlighted || isActive);

@@ -57,28 +59,11 @@ export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, fo
  const isThumbnailJob = job.type === "thumbnail_rebuild" || job.type === "thumbnail_regenerate";
  const hasThumbnailPhase = isPhase2 || isThumbnailJob;

-  // Files column: index-phase stats only (Phase 1 discovery)
-  const filesDisplay =
-    job.status === "running" && !isPhase2
-      ? job.total_files != null
-        ? `${job.processed_files ?? 0}/${job.total_files}`
-        : scanned > 0
-          ? `${scanned} scanned`
-          : "-"
-      : job.status === "success" && (indexed > 0 || removed > 0 || errors > 0)
-        ? null // rendered below as ✓ / − / ⚠
-        : scanned > 0
-          ? `${scanned} scanned`
-          : "—";
+  const isMetadataBatch = job.type === "metadata_batch";
+  const isMetadataRefresh = job.type === "metadata_refresh";

-  // Thumbnails column (Phase 2: extracting_pages + generating_thumbnails)
+  // Thumbnails progress (Phase 2: extracting_pages + generating_thumbnails)
  const thumbInProgress = hasThumbnailPhase && (job.status === "running" || isPhase2);
-  const thumbDisplay =
-    thumbInProgress && job.total_files != null
-      ? `${job.processed_files ?? 0}/${job.total_files}`
-      : job.status === "success" && job.total_files != null && hasThumbnailPhase
-        ? `✓ ${job.total_files}`
-        : "—";

  return (
    <>
@@ -113,32 +98,74 @@ export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, fo
                className="text-xs text-primary hover:text-primary/80 hover:underline"
                onClick={() => setShowProgress(!showProgress)}
              >
-                {showProgress ? "Hide" : "Show"} progress
+                {showProgress ? t("jobRow.hideProgress") : t("jobRow.showProgress")}
              </button>
            )}
          </div>
        </td>
        <td className="px-4 py-3">
          <div className="flex flex-col gap-1">
-            {filesDisplay !== null ? (
-              <span className="text-sm text-foreground">{filesDisplay}</span>
-            ) : (
-              <div className="flex items-center gap-2 text-xs">
-                <span className="text-success">✓ {indexed}</span>
-                {removed > 0 && <span className="text-warning">− {removed}</span>}
-                {errors > 0 && <span className="text-error">⚠ {errors}</span>}
+            {/* Running progress */}
+            {isActive && job.total_files != null && (
+              <div className="flex flex-col gap-1">
+                <span className="text-sm text-foreground">{job.processed_files ?? 0}/{job.total_files}</span>
+                <MiniProgressBar value={job.processed_files ?? 0} max={job.total_files} className="w-24" />
              </div>
            )}
-            {job.status === "running" && !isPhase2 && job.total_files != null && (
-              <MiniProgressBar value={job.processed_files ?? 0} max={job.total_files} className="w-24" />
-            )}
-          </div>
-        </td>
-        <td className="px-4 py-3">
-          <div className="flex flex-col gap-1">
-            <span className="text-sm text-foreground">{thumbDisplay}</span>
-            {thumbInProgress && job.total_files != null && (
-              <MiniProgressBar value={job.processed_files ?? 0} max={job.total_files} className="w-24" />
+            {/* Completed stats with icons */}
+            {!isActive && (
+              <div className="flex items-center gap-3 text-xs">
+                {/* Files: indexed count */}
+                {indexed > 0 && (
+                  <span className="inline-flex items-center gap-1 text-success" title={t("jobRow.filesIndexed", { count: indexed })}>
+                    <Icon name="document" size="sm" />
+                    {indexed}
+                  </span>
+                )}
+                {/* Removed files */}
+                {removed > 0 && (
+                  <span className="inline-flex items-center gap-1 text-warning" title={t("jobRow.filesRemoved", { count: removed })}>
+                    <Icon name="trash" size="sm" />
+                    {removed}
+                  </span>
+                )}
+                {/* Thumbnails */}
+                {hasThumbnailPhase && job.total_files != null && job.total_files > 0 && (
+                  <span className="inline-flex items-center gap-1 text-primary" title={t("jobRow.thumbnailsGenerated", { count: job.total_files })}>
+                    <Icon name="image" size="sm" />
+                    {job.total_files}
+                  </span>
+                )}
+                {/* Metadata batch: series processed */}
+                {isMetadataBatch && job.total_files != null && job.total_files > 0 && (
+                  <span className="inline-flex items-center gap-1 text-info" title={t("jobRow.metadataProcessed", { count: job.total_files })}>
+                    <Icon name="tag" size="sm" />
+                    {job.total_files}
+                  </span>
+                )}
+                {/* Metadata refresh: links refreshed */}
+                {isMetadataRefresh && job.total_files != null && job.total_files > 0 && (
+                  <span className="inline-flex items-center gap-1 text-info" title={t("jobRow.metadataRefreshed", { count: job.total_files })}>
+                    <Icon name="tag" size="sm" />
+                    {job.total_files}
+                  </span>
+                )}
+                {/* Errors */}
+                {errors > 0 && (
+                  <span className="inline-flex items-center gap-1 text-error" title={t("jobRow.errors", { count: errors })}>
+                    <Icon name="warning" size="sm" />
+                    {errors}
+                  </span>
+                )}
+                {/* Scanned only (no other stats) */}
+                {indexed === 0 && removed === 0 && errors === 0 && !hasThumbnailPhase && !isMetadataBatch && !isMetadataRefresh && scanned > 0 && (
+                  <span className="text-sm text-muted-foreground">{t("jobRow.scanned", { count: scanned })}</span>
+                )}
+                {/* Nothing to show */}
+                {indexed === 0 && removed === 0 && errors === 0 && scanned === 0 && !hasThumbnailPhase && !isMetadataBatch && !isMetadataRefresh && (
+                  <span className="text-sm text-muted-foreground">—</span>
+                )}
+              </div>
            )}
          </div>
        </td>
@@ -154,7 +181,7 @@ export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, fo
              href={`/jobs/${job.id}`}
              className="inline-flex items-center px-3 py-1.5 text-xs font-medium rounded-lg bg-primary text-white hover:bg-primary/90 transition-colors"
            >
-              View
+              {t("jobRow.view")}
            </Link>
            {(job.status === "pending" || job.status === "running" || job.status === "extracting_pages" || job.status === "generating_thumbnails") && (
              <Button 
@@ -162,7 +189,7 @@ export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, fo
                size="sm"
                onClick={() => onCancel(job.id)}
              >
-                Cancel
+                {t("common.cancel")}
              </Button>
            )}
          </div>
@@ -170,7 +197,7 @@ export function JobRow({ job, libraryName, highlighted, onCancel, formatDate, fo
      </tr>
      {showProgress && isActive && (
        <tr>
-          <td colSpan={9} className="px-4 py-3 bg-muted/50">
+          <td colSpan={8} className="px-4 py-3 bg-muted/50">
            <JobProgress 
              jobId={job.id}
              onComplete={handleComplete}
--- a/apps/backoffice/app/components/JobsIndicator.tsx
+++ b/apps/backoffice/app/components/JobsIndicator.tsx
@@ -3,6 +3,7 @@
 import { useEffect, useState, useRef, useCallback } from "react";
 import { createPortal } from "react-dom";
 import Link from "next/link";
+import { useTranslation } from "../../lib/i18n/context";
 import { Badge } from "./ui/Badge";
 import { ProgressBar } from "./ui/ProgressBar";

@@ -45,6 +46,7 @@ const ChevronIcon = ({ className }: { className?: string }) => (
 );

 export function JobsIndicator() {
+  const { t } = useTranslation();
  const [activeJobs, setActiveJobs] = useState<Job[]>([]);
  const [isOpen, setIsOpen] = useState(false);
  const buttonRef = useRef<HTMLButtonElement>(null);
@@ -52,21 +54,62 @@ export function JobsIndicator() {
  const [popinStyle, setPopinStyle] = useState<React.CSSProperties>({});

  useEffect(() => {
-    const fetchActiveJobs = async () => {
-      try {
-        const response = await fetch("/api/jobs/active");
-        if (response.ok) {
-          const jobs = await response.json();
-          setActiveJobs(jobs);
+    let eventSource: EventSource | null = null;
+    let reconnectTimeout: ReturnType<typeof setTimeout> | null = null;
+
+    const connect = () => {
+      if (eventSource) {
+        eventSource.close();
+      }
+      eventSource = new EventSource("/api/jobs/stream");
+
+      eventSource.onmessage = (event) => {
+        try {
+          const allJobs: Job[] = JSON.parse(event.data);
+          const active = allJobs.filter(j =>
+            j.status === "running" || j.status === "pending" ||
+            j.status === "extracting_pages" || j.status === "generating_thumbnails"
+          );
+          setActiveJobs(active);
+        } catch {
+          // ignore malformed data
        }
-      } catch (error) {
-        console.error("Failed to fetch jobs:", error);
+      };
+
+      eventSource.onerror = () => {
+        eventSource?.close();
+        eventSource = null;
+        // Reconnect after 5s on error
+        reconnectTimeout = setTimeout(connect, 5000);
+      };
+    };
+
+    const disconnect = () => {
+      if (reconnectTimeout) {
+        clearTimeout(reconnectTimeout);
+        reconnectTimeout = null;
+      }
+      if (eventSource) {
+        eventSource.close();
+        eventSource = null;
      }
    };

-    fetchActiveJobs();
-    const interval = setInterval(fetchActiveJobs, 2000);
-    return () => clearInterval(interval);
+    const handleVisibilityChange = () => {
+      if (document.hidden) {
+        disconnect();
+      } else {
+        connect();
+      }
+    };
+
+    connect();
+    document.addEventListener("visibilitychange", handleVisibilityChange);
+
+    return () => {
+      disconnect();
+      document.removeEventListener("visibilitychange", handleVisibilityChange);
+    };
  }, []);

  // Position the popin relative to the button
@@ -152,7 +195,7 @@ export function JobsIndicator() {
          hover:bg-accent
          transition-colors duration-200
        "
-        title="View all jobs"
+        title={t("jobsIndicator.viewAll")}
      >
        <JobsIcon className="w-[18px] h-[18px]" />
      </Link>
@@ -187,11 +230,11 @@ export function JobsIndicator() {
          <div className="flex items-center gap-3">
            <span className="text-xl">📊</span>
            <div>
-              <h3 className="font-semibold text-foreground">Active Jobs</h3>
+              <h3 className="font-semibold text-foreground">{t("jobsIndicator.activeTasks")}</h3>
              <p className="text-xs text-muted-foreground">
                {runningJobs.length > 0
-                  ? `${runningJobs.length} running, ${pendingJobs.length} pending`
-                  : `${pendingJobs.length} job${pendingJobs.length !== 1 ? 's' : ''} pending`
+                  ? t("jobsIndicator.runningAndPending", { running: runningJobs.length, pending: pendingJobs.length })
+                  : t("jobsIndicator.pendingTasks", { count: pendingJobs.length, plural: pendingJobs.length !== 1 ? "s" : "" })
                }
              </p>
            </div>
@@ -201,7 +244,7 @@ export function JobsIndicator() {
            className="text-sm font-medium text-primary hover:text-primary/80 transition-colors"
            onClick={() => setIsOpen(false)}
          >
-            View All →
+            {t("jobsIndicator.viewAllLink")}
          </Link>
        </div>

@@ -209,7 +252,7 @@ export function JobsIndicator() {
        {runningJobs.length > 0 && (
          <div className="px-4 py-3 border-b border-border/60">
            <div className="flex items-center justify-between text-sm mb-2">
-              <span className="text-muted-foreground">Overall Progress</span>
+              <span className="text-muted-foreground">{t("jobsIndicator.overallProgress")}</span>
              <span className="font-semibold text-foreground">{Math.round(totalProgress)}%</span>
            </div>
            <ProgressBar value={totalProgress} size="sm" variant="success" />
@@ -221,7 +264,7 @@ export function JobsIndicator() {
          {activeJobs.length === 0 ? (
            <div className="flex flex-col items-center justify-center py-8 text-muted-foreground">
              <span className="text-4xl mb-2">✅</span>
-              <p>No active jobs</p>
+              <p>{t("jobsIndicator.noActiveTasks")}</p>
            </div>
          ) : (
            <ul className="divide-y divide-border/60">
@@ -242,7 +285,7 @@ export function JobsIndicator() {
                        <div className="flex items-center gap-2 mb-1">
                          <code className="text-xs px-1.5 py-0.5 bg-muted rounded font-mono">{job.id.slice(0, 8)}</code>
                          <Badge variant={job.type === 'rebuild' ? 'primary' : job.type === 'thumbnail_regenerate' ? 'warning' : 'secondary'} className="text-[10px]">
-                            {job.type === 'thumbnail_rebuild' ? 'Thumbnails' : job.type === 'thumbnail_regenerate' ? 'Regenerate' : job.type}
+                            {t(`jobType.${job.type}` as any) !== `jobType.${job.type}` ? t(`jobType.${job.type}` as any) : job.type}
                          </Badge>
                        </div>

@@ -281,7 +324,7 @@ export function JobsIndicator() {

        {/* Footer */}
        <div className="px-4 py-2 border-t border-border/60 bg-muted/50">
-          <p className="text-xs text-muted-foreground text-center">Auto-refreshing every 2s</p>
+          <p className="text-xs text-muted-foreground text-center">{t("jobsIndicator.autoRefresh")}</p>
        </div>
      </div>
    </>
@@ -304,7 +347,7 @@ export function JobsIndicator() {
          ${isOpen ? 'ring-2 ring-ring ring-offset-2 ring-offset-background' : ''}
        `}
        onClick={() => setIsOpen(!isOpen)}
-        title={`${totalCount} active job${totalCount !== 1 ? 's' : ''}`}
+        title={t("jobsIndicator.taskCount", { count: totalCount, plural: totalCount !== 1 ? "s" : "" })}
      >
        {/* Animated spinner for running jobs */}
        {runningJobs.length > 0 && (
--- a/apps/backoffice/app/components/JobsList.tsx
+++ b/apps/backoffice/app/components/JobsList.tsx
@@ -1,6 +1,7 @@
 "use client";

 import { useState, useEffect } from "react";
+import { useTranslation } from "../../lib/i18n/context";
 import { JobRow } from "./JobRow";

 interface Job {
@@ -39,26 +40,23 @@ function formatDuration(start: string, end: string | null): string {
  return `${Math.floor(diff / 3600000)}h ${Math.floor((diff % 3600000) / 60000)}m`;
 }

-function formatDate(dateStr: string): string {
-  const date = new Date(dateStr);
-  const now = new Date();
-  const diff = now.getTime() - date.getTime();
-  
-  if (diff < 3600000) {
-    const mins = Math.floor(diff / 60000);
-    if (mins < 1) return "Just now";
-    return `${mins}m ago`;
-  }
-  if (diff < 86400000) {
-    const hours = Math.floor(diff / 3600000);
-    return `${hours}h ago`;
-  }
-  return date.toLocaleDateString();
-}
-
 export function JobsList({ initialJobs, libraries, highlightJobId }: JobsListProps) {
+  const { t, locale } = useTranslation();
  const [jobs, setJobs] = useState(initialJobs);

+  const formatDate = (dateStr: string): string => {
+    const date = new Date(dateStr);
+    if (isNaN(date.getTime())) return dateStr;
+    const loc = locale === "fr" ? "fr-FR" : "en-US";
+    return date.toLocaleString(loc, {
+      day: "2-digit",
+      month: "2-digit",
+      year: "numeric",
+      hour: "2-digit",
+      minute: "2-digit",
+    });
+  };
+
  // Refresh jobs list via SSE
  useEffect(() => {
    const eventSource = new EventSource("/api/jobs/stream");
@@ -102,15 +100,14 @@ export function JobsList({ initialJobs, libraries, highlightJobId }: JobsListPro
        <table className="w-full">
          <thead>
            <tr className="border-b border-border/60 bg-muted/50">
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">ID</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Library</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Type</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Status</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Files</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Thumbnails</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Duration</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Created</th>
-              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Actions</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.id")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.library")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.type")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.status")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.stats")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.duration")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.created")}</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">{t("jobsList.actions")}</th>
            </tr>
          </thead>
          <tbody className="divide-y divide-border/60">
--- a/apps/backoffice/app/components/LibraryActions.tsx
+++ b/apps/backoffice/app/components/LibraryActions.tsx
@@ -1,37 +1,35 @@
 "use client";

-import { useState, useRef, useEffect, useTransition } from "react";
+import { useState, useTransition } from "react";
+import { createPortal } from "react-dom";
 import { Button } from "../components/ui";
+import { ProviderIcon } from "../components/ProviderIcon";
+import { useTranslation } from "../../lib/i18n/context";

 interface LibraryActionsProps {
  libraryId: string;
  monitorEnabled: boolean;
  scanMode: string;
  watcherEnabled: boolean;
+  metadataProvider: string | null;
+  fallbackMetadataProvider: string | null;
+  metadataRefreshMode: string;
  onUpdate?: () => void;
 }

-export function LibraryActions({ 
-  libraryId, 
-  monitorEnabled, 
-  scanMode, 
+export function LibraryActions({
+  libraryId,
+  monitorEnabled,
+  scanMode,
  watcherEnabled,
-  onUpdate 
+  metadataProvider,
+  fallbackMetadataProvider,
+  metadataRefreshMode,
 }: LibraryActionsProps) {
+  const { t } = useTranslation();
  const [isOpen, setIsOpen] = useState(false);
  const [isPending, startTransition] = useTransition();
  const [saveError, setSaveError] = useState<string | null>(null);
-  const dropdownRef = useRef<HTMLDivElement>(null);
-
-  useEffect(() => {
-    const handleClickOutside = (event: MouseEvent) => {
-      if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
-        setIsOpen(false);
-      }
-    };
-    document.addEventListener("mousedown", handleClickOutside);
-    return () => document.removeEventListener("mousedown", handleClickOutside);
-  }, []);

  const handleSubmit = (formData: FormData) => {
    setSaveError(null);
@@ -39,17 +37,28 @@ export function LibraryActions({
      const monitorEnabled = formData.get("monitor_enabled") === "true";
      const watcherEnabled = formData.get("watcher_enabled") === "true";
      const scanMode = formData.get("scan_mode") as string;
+      const newMetadataProvider = (formData.get("metadata_provider") as string) || null;
+      const newFallbackProvider = (formData.get("fallback_metadata_provider") as string) || null;
+      const newMetadataRefreshMode = formData.get("metadata_refresh_mode") as string;

      try {
-        const response = await fetch(`/api/libraries/${libraryId}/monitoring`, {
-          method: "PATCH",
-          headers: { "Content-Type": "application/json" },
-          body: JSON.stringify({
-            monitor_enabled: monitorEnabled,
-            scan_mode: scanMode,
-            watcher_enabled: watcherEnabled,
+        const [response] = await Promise.all([
+          fetch(`/api/libraries/${libraryId}/monitoring`, {
+            method: "PATCH",
+            headers: { "Content-Type": "application/json" },
+            body: JSON.stringify({
+              monitor_enabled: monitorEnabled,
+              scan_mode: scanMode,
+              watcher_enabled: watcherEnabled,
+              metadata_refresh_mode: newMetadataRefreshMode,
+            }),
          }),
-        });
+          fetch(`/api/libraries/${libraryId}/metadata-provider`, {
+            method: "PATCH",
+            headers: { "Content-Type": "application/json" },
+            body: JSON.stringify({ metadata_provider: newMetadataProvider, fallback_metadata_provider: newFallbackProvider }),
+          }),
+        ]);

        if (response.ok) {
          setIsOpen(false);
@@ -69,11 +78,11 @@ export function LibraryActions({
  };

  return (
-    <div className="relative" ref={dropdownRef}>
-      <Button 
-        variant="ghost" 
+    <>
+      <Button
+        variant="ghost"
        size="sm"
-        onClick={() => setIsOpen(!isOpen)}
+        onClick={() => setIsOpen(true)}
        className={isOpen ? "bg-accent" : ""}
      >
        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -82,68 +91,201 @@ export function LibraryActions({
        </svg>
      </Button>

-      {isOpen && (
-        <div className="absolute right-0 top-full mt-2 w-72 bg-card rounded-xl shadow-md border border-border/60 p-4 z-50">
-          <form action={handleSubmit}>
-            <div className="space-y-4">
-              <div className="flex items-center justify-between">
-                <label className="text-sm font-medium text-foreground flex items-center gap-2">
-                  <input 
-                    type="checkbox" 
-                    name="monitor_enabled" 
-                    value="true"
-                    defaultChecked={monitorEnabled}
-                    className="w-4 h-4 rounded border-border text-primary focus:ring-ring"
-                  />
-                  Auto Scan
-                </label>
-              </div>
+      {isOpen && createPortal(
+        <>
+          {/* Backdrop */}
+          <div
+            className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
+            onClick={() => setIsOpen(false)}
+          />

-              <div className="flex items-center justify-between">
-                <label className="text-sm font-medium text-foreground flex items-center gap-2">
-                  <input 
-                    type="checkbox" 
-                    name="watcher_enabled" 
-                    value="true"
-                    defaultChecked={watcherEnabled}
-                    className="w-4 h-4 rounded border-border text-primary focus:ring-ring"
-                  />
-                  File Watcher ⚡
-                </label>
-              </div>
-
-              <div className="flex items-center justify-between">
-                <label className="text-sm font-medium text-foreground">📅 Schedule</label>
-                <select 
-                  name="scan_mode" 
-                  defaultValue={scanMode}
-                  className="text-sm border border-border rounded-lg px-2 py-1 bg-background"
+          {/* Modal */}
+          <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
+            <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-lg overflow-hidden animate-in fade-in zoom-in-95 duration-200">
+              {/* Header */}
+              <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30">
+                <div className="flex items-center gap-2.5">
+                  <svg className="w-5 h-5 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z" />
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+                  </svg>
+                  <span className="font-semibold text-lg">{t("libraryActions.settingsTitle")}</span>
+                </div>
+                <button
+                  type="button"
+                  onClick={() => setIsOpen(false)}
+                  className="text-muted-foreground hover:text-foreground transition-colors p-1.5 hover:bg-accent rounded-lg"
                >
-                  <option value="manual">Manual</option>
-                  <option value="hourly">Hourly</option>
-                  <option value="daily">Daily</option>
-                  <option value="weekly">Weekly</option>
-                </select>
+                  <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                  </svg>
+                </button>
              </div>

-              {saveError && (
-                <p className="text-xs text-destructive bg-destructive/10 px-2 py-1.5 rounded-lg break-all">
-                  {saveError}
-                </p>
-              )}
+              {/* Form */}
+              <form action={handleSubmit}>
+                <div className="p-6 space-y-8 max-h-[70vh] overflow-y-auto">

-              <Button
-                type="submit"
-                size="sm"
-                className="w-full"
-                disabled={isPending}
-              >
-                {isPending ? "Saving..." : "Save Settings"}
-              </Button>
+                  {/* Section: Indexation */}
+                  <div className="space-y-5">
+                    <h3 className="flex items-center gap-2 text-sm font-semibold text-foreground uppercase tracking-wide">
+                      <svg className="w-4 h-4 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
+                      </svg>
+                      {t("libraryActions.sectionIndexation")}
+                    </h3>
+
+                    {/* Auto scan */}
+                    <div className="flex items-start justify-between gap-4">
+                      <div className="flex-1">
+                        <label className="text-sm font-medium text-foreground flex items-center gap-2 cursor-pointer">
+                          <input
+                            type="checkbox"
+                            name="monitor_enabled"
+                            value="true"
+                            defaultChecked={monitorEnabled}
+                            className="w-4 h-4 rounded border-border text-primary focus:ring-ring"
+                          />
+                          {t("libraryActions.autoScan")}
+                        </label>
+                        <p className="text-xs text-muted-foreground mt-1.5 ml-6">{t("libraryActions.autoScanDesc")}</p>
+                      </div>
+                      <select
+                        name="scan_mode"
+                        defaultValue={scanMode}
+                        className="text-sm border border-border rounded-lg px-3 py-1.5 bg-background min-w-[130px] shrink-0"
+                      >
+                        <option value="manual">{t("monitoring.manual")}</option>
+                        <option value="hourly">{t("monitoring.hourly")}</option>
+                        <option value="daily">{t("monitoring.daily")}</option>
+                        <option value="weekly">{t("monitoring.weekly")}</option>
+                      </select>
+                    </div>
+
+                    {/* File watcher */}
+                    <div>
+                      <label className="text-sm font-medium text-foreground flex items-center gap-2 cursor-pointer">
+                        <input
+                          type="checkbox"
+                          name="watcher_enabled"
+                          value="true"
+                          defaultChecked={watcherEnabled}
+                          className="w-4 h-4 rounded border-border text-primary focus:ring-ring"
+                        />
+                        {t("libraryActions.fileWatch")}
+                      </label>
+                      <p className="text-xs text-muted-foreground mt-1.5 ml-6">{t("libraryActions.fileWatchDesc")}</p>
+                    </div>
+                  </div>
+
+                  <hr className="border-border/40" />
+
+                  {/* Section: Metadata */}
+                  <div className="space-y-5">
+                    <h3 className="flex items-center gap-2 text-sm font-semibold text-foreground uppercase tracking-wide">
+                      <svg className="w-4 h-4 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z" />
+                      </svg>
+                      {t("libraryActions.sectionMetadata")}
+                    </h3>
+
+                    {/* Provider */}
+                    <div>
+                      <div className="flex items-center justify-between gap-4">
+                        <label className="text-sm font-medium text-foreground flex items-center gap-1.5">
+                          {metadataProvider && metadataProvider !== "none" && <ProviderIcon provider={metadataProvider} size={16} />}
+                          {t("libraryActions.provider")}
+                        </label>
+                        <select
+                          name="metadata_provider"
+                          defaultValue={metadataProvider || ""}
+                          className="text-sm border border-border rounded-lg px-3 py-1.5 bg-background min-w-[160px] shrink-0"
+                        >
+                          <option value="">{t("libraryActions.default")}</option>
+                          <option value="none">{t("libraryActions.none")}</option>
+                          <option value="google_books">Google Books</option>
+                          <option value="comicvine">ComicVine</option>
+                          <option value="open_library">Open Library</option>
+                          <option value="anilist">AniList</option>
+                          <option value="bedetheque">Bédéthèque</option>
+                        </select>
+                      </div>
+                      <p className="text-xs text-muted-foreground mt-1.5">{t("libraryActions.providerDesc")}</p>
+                    </div>
+
+                    {/* Fallback */}
+                    <div>
+                      <div className="flex items-center justify-between gap-4">
+                        <label className="text-sm font-medium text-foreground flex items-center gap-1.5">
+                          {fallbackMetadataProvider && fallbackMetadataProvider !== "none" && <ProviderIcon provider={fallbackMetadataProvider} size={16} />}
+                          {t("libraryActions.fallback")}
+                        </label>
+                        <select
+                          name="fallback_metadata_provider"
+                          defaultValue={fallbackMetadataProvider || ""}
+                          className="text-sm border border-border rounded-lg px-3 py-1.5 bg-background min-w-[160px] shrink-0"
+                        >
+                          <option value="">{t("libraryActions.none")}</option>
+                          <option value="google_books">Google Books</option>
+                          <option value="comicvine">ComicVine</option>
+                          <option value="open_library">Open Library</option>
+                          <option value="anilist">AniList</option>
+                          <option value="bedetheque">Bédéthèque</option>
+                        </select>
+                      </div>
+                      <p className="text-xs text-muted-foreground mt-1.5">{t("libraryActions.fallbackDesc")}</p>
+                    </div>
+
+                    {/* Metadata refresh */}
+                    <div>
+                      <div className="flex items-center justify-between gap-4">
+                        <label className="text-sm font-medium text-foreground">{t("libraryActions.metadataRefreshSchedule")}</label>
+                        <select
+                          name="metadata_refresh_mode"
+                          defaultValue={metadataRefreshMode}
+                          className="text-sm border border-border rounded-lg px-3 py-1.5 bg-background min-w-[160px] shrink-0"
+                        >
+                          <option value="manual">{t("monitoring.manual")}</option>
+                          <option value="hourly">{t("monitoring.hourly")}</option>
+                          <option value="daily">{t("monitoring.daily")}</option>
+                          <option value="weekly">{t("monitoring.weekly")}</option>
+                        </select>
+                      </div>
+                      <p className="text-xs text-muted-foreground mt-1.5">{t("libraryActions.metadataRefreshDesc")}</p>
+                    </div>
+                  </div>
+
+                  {saveError && (
+                    <p className="text-sm text-destructive bg-destructive/10 px-3 py-2 rounded-lg break-all">
+                      {saveError}
+                    </p>
+                  )}
+                </div>
+
+                {/* Footer */}
+                <div className="flex items-center justify-end gap-2 px-5 py-4 border-t border-border/50 bg-muted/30">
+                  <Button
+                    type="button"
+                    variant="ghost"
+                    size="sm"
+                    onClick={() => setIsOpen(false)}
+                  >
+                    {t("common.cancel")}
+                  </Button>
+                  <Button
+                    type="submit"
+                    size="sm"
+                    disabled={isPending}
+                  >
+                    {isPending ? t("libraryActions.saving") : t("common.save")}
+                  </Button>
+                </div>
+              </form>
            </div>
-          </form>
-        </div>
+          </div>
+        </>,
+        document.body
      )}
-    </div>
+    </>
  );
 }
--- a/apps/backoffice/app/components/LibraryForm.tsx
+++ b/apps/backoffice/app/components/LibraryForm.tsx
@@ -4,6 +4,7 @@ import { useState } from "react";
 import { FolderPicker } from "./FolderPicker";
 import { FolderItem } from "../../lib/api";
 import { Button, FormField, FormInput, FormRow } from "./ui";
+import { useTranslation } from "../../lib/i18n/context";

 interface LibraryFormProps {
  initialFolders: FolderItem[];
@@ -11,13 +12,14 @@ interface LibraryFormProps {
 }

 export function LibraryForm({ initialFolders, action }: LibraryFormProps) {
+  const { t } = useTranslation();
  const [selectedPath, setSelectedPath] = useState<string>("");

  return (
    <form action={action}>
      <FormRow>
        <FormField className="flex-1 min-w-48">
-          <FormInput name="name" placeholder="Library name" required />
+          <FormInput name="name" placeholder={t("libraries.libraryName")} required />
        </FormField>
        <FormField className="flex-1 min-w-64">
          <input type="hidden" name="root_path" value={selectedPath} />
@@ -30,7 +32,7 @@ export function LibraryForm({ initialFolders, action }: LibraryFormProps) {
      </FormRow>
      <div className="mt-4 flex justify-end">
        <Button type="submit" disabled={!selectedPath}>
-          Add Library
+          {t("libraries.addButton")}
        </Button>
      </div>
    </form>
--- a/apps/backoffice/app/components/LibrarySubPageHeader.tsx
+++ b/apps/backoffice/app/components/LibrarySubPageHeader.tsx
@@ -1,5 +1,6 @@
 import Link from "next/link";
 import { Card, Badge } from "./ui";
+import { getServerTranslations } from "../../lib/i18n/server";

 interface LibrarySubPageHeaderProps {
  library: {
@@ -19,13 +20,14 @@ interface LibrarySubPageHeaderProps {
  };
 }

-export function LibrarySubPageHeader({ 
-  library, 
-  title, 
-  icon, 
+export async function LibrarySubPageHeader({
+  library,
+  title,
+  icon,
  iconColor = "text-primary",
-  filterInfo 
+  filterInfo
 }: LibrarySubPageHeaderProps) {
+  const { t } = await getServerTranslations();
  return (
    <div className="space-y-6">
      {/* Header avec breadcrumb intégré */}
@@ -38,7 +40,7 @@ export function LibrarySubPageHeader({
            <svg className="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
            </svg>
-            Libraries
+            {t("libraryHeader.libraries")}
          </Link>
          <span className="text-muted-foreground">/</span>
          <span className="text-sm text-foreground font-medium">{library.name}</span>
@@ -73,8 +75,7 @@ export function LibrarySubPageHeader({
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" />
              </svg>
              <span className="text-foreground">
-                <span className="font-semibold">{library.book_count}</span>
-                <span className="text-muted-foreground ml-1">book{library.book_count !== 1 ? 's' : ''}</span>
+                <span className="text-muted-foreground ml-1">{t("libraryHeader.bookCount", { count: library.book_count, plural: library.book_count !== 1 ? "s" : "" })}</span>
              </span>
            </div>
            
@@ -86,7 +87,7 @@ export function LibrarySubPageHeader({
              variant={library.enabled ? "success" : "muted"}
              className="text-xs"
            >
-              {library.enabled ? "Enabled" : "Disabled"}
+              {library.enabled ? t("libraryHeader.enabled") : t("libraries.disabled")}
            </Badge>
          </div>
        </div>
--- a/apps/backoffice/app/components/LiveSearchForm.tsx
+++ b/apps/backoffice/app/components/LiveSearchForm.tsx
@@ -2,6 +2,27 @@

 import { useRef, useCallback, useEffect } from "react";
 import { useRouter, useSearchParams } from "next/navigation";
+import { useTranslation } from "../../lib/i18n/context";
+
+// SVG path data for filter icons, keyed by field name
+const FILTER_ICONS: Record<string, string> = {
+  // Library - building/collection
+  library: "M8 14v3m4-3v3m4-3v3M3 21h18M3 10h18M3 7l9-4 9 4M4 10h16v11H4V10z",
+  // Reading status - open book
+  status: "M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253",
+  // Series status - signal/activity
+  series_status: "M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z",
+  // Missing books - warning triangle
+  has_missing: "M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z",
+  // Metadata provider - tag
+  metadata_provider: "M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z",
+  // Sort - arrows up/down
+  sort: "M3 4h13M3 8h9m-9 4h6m4 0l4-4m0 0l4 4m-4-4v12",
+  // Format - document/file
+  format: "M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z",
+  // Metadata - link/chain
+  metadata: "M13.828 10.172a4 4 0 00-5.656 0l-4 4a4 4 0 105.656 5.656l1.102-1.101m-.758-4.899a4 4 0 005.656 0l4-4a4 4 0 00-5.656-5.656l-1.1 1.1",
+};

 interface FieldDef {
  name: string;
@@ -18,11 +39,17 @@ interface LiveSearchFormProps {
  debounceMs?: number;
 }

+const STORAGE_KEY_PREFIX = "filters:";
+
 export function LiveSearchForm({ fields, basePath, debounceMs = 300 }: LiveSearchFormProps) {
  const router = useRouter();
  const searchParams = useSearchParams();
+  const { t } = useTranslation();
  const timerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
  const formRef = useRef<HTMLFormElement>(null);
+  const restoredRef = useRef(false);
+
+  const storageKey = `${STORAGE_KEY_PREFIX}${basePath}`;

  const buildUrl = useCallback((): string => {
    if (!formRef.current) return basePath;
@@ -36,16 +63,58 @@ export function LiveSearchForm({ fields, basePath, debounceMs = 300 }: LiveSearc
    return qs ? `${basePath}?${qs}` : basePath;
  }, [basePath]);

+  const saveFilters = useCallback(() => {
+    if (!formRef.current) return;
+    const formData = new FormData(formRef.current);
+    const filters: Record<string, string> = {};
+    for (const [key, value] of formData.entries()) {
+      const str = value.toString().trim();
+      if (str) filters[key] = str;
+    }
+    try {
+      localStorage.setItem(storageKey, JSON.stringify(filters));
+    } catch {}
+  }, [storageKey]);
+
  const navigate = useCallback((immediate: boolean) => {
    if (timerRef.current) clearTimeout(timerRef.current);
    if (immediate) {
+      saveFilters();
      router.replace(buildUrl() as any);
    } else {
      timerRef.current = setTimeout(() => {
+        saveFilters();
        router.replace(buildUrl() as any);
      }, debounceMs);
    }
-  }, [router, buildUrl, debounceMs]);
+  }, [router, buildUrl, debounceMs, saveFilters]);
+
+  // Restore filters from localStorage on mount if URL has no filters
+  useEffect(() => {
+    if (restoredRef.current) return;
+    restoredRef.current = true;
+
+    const hasUrlFilters = fields.some((f) => {
+      const val = searchParams.get(f.name);
+      return val && val.trim() !== "";
+    });
+    if (hasUrlFilters) return;
+
+    try {
+      const saved = localStorage.getItem(storageKey);
+      if (!saved) return;
+      const filters: Record<string, string> = JSON.parse(saved);
+      const fieldNames = new Set(fields.map((f) => f.name));
+      const params = new URLSearchParams();
+      for (const [key, value] of Object.entries(filters)) {
+        if (fieldNames.has(key) && value) params.set(key, value);
+      }
+      const qs = params.toString();
+      if (qs) {
+        router.replace(`${basePath}?${qs}` as any);
+      }
+    } catch {}
+  }, []); // eslint-disable-line react-hooks/exhaustive-deps

  useEffect(() => {
    return () => {
@@ -58,70 +127,99 @@ export function LiveSearchForm({ fields, basePath, debounceMs = 300 }: LiveSearc
    return val && val.trim() !== "";
  });

+  const textFields = fields.filter((f) => f.type === "text");
+  const selectFields = fields.filter((f) => f.type === "select");
+
  return (
    <form
      ref={formRef}
      onSubmit={(e) => {
        e.preventDefault();
        if (timerRef.current) clearTimeout(timerRef.current);
+        saveFilters();
        router.replace(buildUrl() as any);
      }}
-      className="flex flex-col sm:flex-row gap-3 items-start sm:items-end"
+      className="space-y-4"
    >
-      {fields.map((field) =>
-        field.type === "text" ? (
-          <div key={field.name} className={field.className || "flex-1 w-full"}>
-            <label className="block text-sm font-medium text-foreground mb-1.5">
-              {field.label}
-            </label>
-            <input
-              name={field.name}
-              type="text"
-              placeholder={field.placeholder}
-              defaultValue={searchParams.get(field.name) || ""}
-              onChange={() => navigate(false)}
-              className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
-            />
+      {/* Search input with icon */}
+      {textFields.map((field) => (
+        <div key={field.name} className="relative">
+          <svg
+            className="absolute left-3 top-1/2 -translate-y-1/2 w-5 h-5 text-muted-foreground pointer-events-none"
+            fill="none"
+            stroke="currentColor"
+            viewBox="0 0 24 24"
+          >
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
+          </svg>
+          <input
+            name={field.name}
+            type="text"
+            placeholder={field.placeholder}
+            defaultValue={searchParams.get(field.name) || ""}
+            onChange={() => navigate(false)}
+            className="flex h-11 w-full rounded-lg border border-input bg-background pl-10 pr-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+          />
+        </div>
+      ))}
+
+      {/* Filters row */}
+      {selectFields.length > 0 && (
+        <>
+          {textFields.length > 0 && (
+            <div className="border-t border-border/60" />
+          )}
+          <div className="flex flex-wrap gap-3 items-center">
+            {selectFields.map((field) => (
+              <div key={field.name} className="flex items-center gap-1.5">
+                {FILTER_ICONS[field.name] && (
+                  <svg className="w-3.5 h-3.5 text-muted-foreground shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d={FILTER_ICONS[field.name]} />
+                  </svg>
+                )}
+                <label className="text-xs font-medium text-muted-foreground whitespace-nowrap">
+                  {field.label}
+                </label>
+                <select
+                  name={field.name}
+                  defaultValue={searchParams.get(field.name) || ""}
+                  onChange={() => navigate(true)}
+                  className="h-8 rounded-md border border-input bg-background px-2 py-1 text-xs ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+                >
+                  {field.options?.map((opt) => (
+                    <option key={opt.value} value={opt.value}>
+                      {opt.label}
+                    </option>
+                  ))}
+                </select>
+              </div>
+            ))}
+            {hasFilters && (
+              <button
+                type="button"
+                onClick={() => {
+                  formRef.current?.reset();
+                  try { localStorage.removeItem(storageKey); } catch {}
+                  router.replace(basePath as any);
+                }}
+                className="
+                  inline-flex items-center gap-1
+                  h-8 px-2.5
+                  text-xs font-medium
+                  text-muted-foreground
+                  rounded-md
+                  hover:bg-accent hover:text-accent-foreground
+                  transition-colors duration-200
+                "
+              >
+                <svg className="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                </svg>
+                {t("common.clear")}
+              </button>
+            )}
          </div>
-        ) : (
-          <div key={field.name} className={field.className || "w-full sm:w-48"}>
-            <label className="block text-sm font-medium text-foreground mb-1.5">
-              {field.label}
-            </label>
-            <select
-              name={field.name}
-              defaultValue={searchParams.get(field.name) || ""}
-              onChange={() => navigate(true)}
-              className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
-            >
-              {field.options?.map((opt) => (
-                <option key={opt.value} value={opt.value}>
-                  {opt.label}
-                </option>
-              ))}
-            </select>
-          </div>
-        )
-      )}
-      {hasFilters && (
-        <button
-          type="button"
-          onClick={() => router.replace(basePath as any)}
-          className="
-            inline-flex items-center justify-center
-            h-10 px-4
-            border border-input
-            text-sm font-medium
-            text-muted-foreground
-            bg-background
-            rounded-md
-            hover:bg-accent hover:text-accent-foreground
-            transition-colors duration-200
-            w-full sm:w-auto
-          "
-        >
-          Clear
-        </button>
+        </>
      )}
    </form>
  );
--- a/apps/backoffice/app/components/MarkBookReadButton.tsx
+++ b/apps/backoffice/app/components/MarkBookReadButton.tsx
@@ -3,6 +3,7 @@
 import { useState } from "react";
 import { useRouter } from "next/navigation";
 import { Button } from "./ui";
+import { useTranslation } from "../../lib/i18n/context";

 interface MarkBookReadButtonProps {
  bookId: string;
@@ -10,12 +11,13 @@ interface MarkBookReadButtonProps {
 }

 export function MarkBookReadButton({ bookId, currentStatus }: MarkBookReadButtonProps) {
+  const { t } = useTranslation();
  const [loading, setLoading] = useState(false);
  const router = useRouter();

  const isRead = currentStatus === "read";
  const targetStatus = isRead ? "unread" : "read";
-  const label = isRead ? "Marquer non lu" : "Marquer comme lu";
+  const label = isRead ? t("markRead.markUnread") : t("markRead.markAsRead");

  const handleClick = async () => {
    setLoading(true);
--- a/apps/backoffice/app/components/MarkSeriesReadButton.tsx
+++ b/apps/backoffice/app/components/MarkSeriesReadButton.tsx
@@ -2,6 +2,7 @@

 import { useState } from "react";
 import { useRouter } from "next/navigation";
+import { useTranslation } from "../../lib/i18n/context";

 interface MarkSeriesReadButtonProps {
  seriesName: string;
@@ -10,12 +11,13 @@ interface MarkSeriesReadButtonProps {
 }

 export function MarkSeriesReadButton({ seriesName, bookCount, booksReadCount }: MarkSeriesReadButtonProps) {
+  const { t } = useTranslation();
  const [loading, setLoading] = useState(false);
  const router = useRouter();

  const allRead = booksReadCount >= bookCount;
  const targetStatus = allRead ? "unread" : "read";
-  const label = allRead ? "Marquer non lu" : "Tout marquer lu";
+  const label = allRead ? t("markRead.markUnread") : t("markRead.markAllRead");

  const handleClick = async (e: React.MouseEvent) => {
    e.preventDefault();
--- a/apps/backoffice/app/components/MetadataSearchModal.tsx
+++ b/apps/backoffice/app/components/MetadataSearchModal.tsx
@@ -0,0 +1,696 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+import { createPortal } from "react-dom";
+import { useRouter } from "next/navigation";
+import { Icon } from "./ui";
+import { ProviderIcon, PROVIDERS, providerLabel } from "./ProviderIcon";
+import type { ExternalMetadataLinkDto, SeriesCandidateDto, MissingBooksDto, SyncReport } from "../../lib/api";
+import { useTranslation } from "../../lib/i18n/context";
+
+const FIELD_KEYS: string[] = [
+  "description", "authors", "publishers", "start_year",
+  "total_volumes", "status", "summary", "isbn", "publish_date", "language",
+];
+
+function formatValue(value: unknown): string {
+  if (value == null) return "—";
+  if (Array.isArray(value)) return value.join(", ");
+  if (typeof value === "string") {
+    return value.length > 80 ? value.slice(0, 80) + "…" : value;
+  }
+  return String(value);
+}
+
+interface MetadataSearchModalProps {
+  libraryId: string;
+  seriesName: string;
+  existingLink: ExternalMetadataLinkDto | null;
+  initialMissing: MissingBooksDto | null;
+}
+
+type ModalStep = "idle" | "searching" | "results" | "confirm" | "syncing" | "done" | "linked";
+
+export function MetadataSearchModal({
+  libraryId,
+  seriesName,
+  existingLink,
+  initialMissing,
+}: MetadataSearchModalProps) {
+  const { t } = useTranslation();
+  const router = useRouter();
+
+  const fieldLabel = (field: string): string => {
+    if (FIELD_KEYS.includes(field)) {
+      return t(`field.${field}` as any);
+    }
+    return field;
+  };
+  const [isOpen, setIsOpen] = useState(false);
+  const [step, setStep] = useState<ModalStep>("idle");
+  const [candidates, setCandidates] = useState<SeriesCandidateDto[]>([]);
+  const [selectedCandidate, setSelectedCandidate] = useState<SeriesCandidateDto | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [linkId, setLinkId] = useState<string | null>(existingLink?.id ?? null);
+  const [missing, setMissing] = useState<MissingBooksDto | null>(initialMissing);
+  const [showMissingList, setShowMissingList] = useState(false);
+  const [syncReport, setSyncReport] = useState<SyncReport | null>(null);
+
+  // Provider selector: empty string = library default
+  const [searchProvider, setSearchProvider] = useState("");
+  const [activeProvider, setActiveProvider] = useState("");
+  const [hiddenProviders, setHiddenProviders] = useState<Set<string>>(new Set());
+
+  // Fetch metadata provider settings to hide providers without required API keys
+  useEffect(() => {
+    fetch("/api/settings/metadata_providers")
+      .then((r) => r.ok ? r.json() : null)
+      .then((data) => {
+        if (!data) return;
+        const hidden = new Set<string>();
+        // ComicVine requires an API key
+        if (!data.comicvine?.api_key) hidden.add("comicvine");
+        setHiddenProviders(hidden);
+      })
+      .catch(() => {});
+  }, []);
+
+  const visibleProviders = PROVIDERS.filter((p) => !hiddenProviders.has(p.value));
+
+  const handleOpen = useCallback(() => {
+    setIsOpen(true);
+    if (existingLink && existingLink.status === "approved") {
+      setStep("linked");
+    } else {
+      doSearch("");
+    }
+  }, [existingLink]);
+
+  const handleClose = useCallback(() => {
+    setIsOpen(false);
+    setStep("idle");
+    setError(null);
+    setCandidates([]);
+    setSelectedCandidate(null);
+    setShowMissingList(false);
+    setSyncReport(null);
+  }, []);
+
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape") handleClose();
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen, handleClose]);
+
+  async function doSearch(provider: string) {
+    setStep("searching");
+    setError(null);
+    setActiveProvider(provider);
+    try {
+      const body: Record<string, string> = {
+        library_id: libraryId,
+        series_name: seriesName,
+      };
+      if (provider) body.provider = provider;
+
+      const resp = await fetch("/api/metadata/search", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(body),
+      });
+      const data = await resp.json();
+      if (!resp.ok) {
+        setError(data.error || t("metadata.searchFailed"));
+        setStep("results");
+        return;
+      }
+      setCandidates(data);
+      // Update activeProvider from first result (the API returns the actual provider used)
+      if (data.length > 0 && data[0].provider) {
+        setActiveProvider(data[0].provider);
+        if (!provider) setSearchProvider(data[0].provider);
+      }
+      setStep("results");
+    } catch {
+      setError(t("common.networkError"));
+      setStep("results");
+    }
+  }
+
+  async function handleSelectCandidate(candidate: SeriesCandidateDto) {
+    setSelectedCandidate(candidate);
+    setStep("confirm");
+  }
+
+  async function handleApprove(syncSeries: boolean, syncBooks: boolean) {
+    if (!selectedCandidate) return;
+    setStep("syncing");
+    setError(null);
+    try {
+      // Create match — use the provider from the candidate
+      const matchResp = await fetch("/api/metadata/match", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          library_id: libraryId,
+          series_name: seriesName,
+          provider: selectedCandidate.provider,
+          external_id: selectedCandidate.external_id,
+          external_url: selectedCandidate.external_url,
+          confidence: selectedCandidate.confidence,
+          title: selectedCandidate.title,
+          metadata_json: {
+            ...selectedCandidate.metadata_json,
+            description: selectedCandidate.description,
+            authors: selectedCandidate.authors,
+            publishers: selectedCandidate.publishers,
+            start_year: selectedCandidate.start_year,
+          },
+          total_volumes: selectedCandidate.total_volumes,
+        }),
+      });
+      const matchData = await matchResp.json();
+      if (!matchResp.ok) {
+        setError(matchData.error || t("metadata.linkFailed"));
+        setStep("results");
+        return;
+      }
+      const newLinkId = matchData.id;
+      setLinkId(newLinkId);
+
+      // Approve
+      const approveResp = await fetch("/api/metadata/approve", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          id: newLinkId,
+          sync_series: syncSeries,
+          sync_books: syncBooks,
+        }),
+      });
+      const approveData = await approveResp.json();
+      if (!approveResp.ok) {
+        setError(approveData.error || t("metadata.approveFailed"));
+        setStep("results");
+        return;
+      }
+
+      // Store sync report
+      if (approveData.report) {
+        setSyncReport(approveData.report);
+      }
+
+      // Fetch missing books info
+      if (syncBooks) {
+        try {
+          const missingResp = await fetch(`/api/metadata/missing?id=${newLinkId}`);
+          if (missingResp.ok) {
+            setMissing(await missingResp.json());
+          }
+        } catch { /* ignore */ }
+      }
+
+      setStep("done");
+    } catch {
+      setError(t("common.networkError"));
+      setStep("results");
+    }
+  }
+
+  async function handleUnlink() {
+    if (!linkId) return;
+    try {
+      const resp = await fetch(`/api/metadata/links?id=${linkId}`, { method: "DELETE" });
+      if (resp.ok) {
+        setLinkId(null);
+        setMissing(null);
+        handleClose();
+        router.refresh();
+      }
+    } catch { /* ignore */ }
+  }
+
+  function confidenceBadge(confidence: number) {
+    const color =
+      confidence >= 0.8
+        ? "bg-green-500/10 text-green-600 border-green-500/30"
+        : confidence >= 0.5
+          ? "bg-yellow-500/10 text-yellow-600 border-yellow-500/30"
+          : "bg-red-500/10 text-red-600 border-red-500/30";
+    return (
+      <span className={`text-xs px-2 py-0.5 rounded-full border ${color}`}>
+        {Math.round(confidence * 100)}%
+      </span>
+    );
+  }
+
+  const modal = isOpen
+    ? createPortal(
+        <>
+          <div
+            className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
+            onClick={handleClose}
+          />
+          <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
+            <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
+              {/* Header */}
+              <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
+                <h3 className="font-semibold text-foreground">
+                  {step === "linked" ? t("metadata.metadataLink") : t("metadata.searchExternal")}
+                </h3>
+                <button type="button" onClick={handleClose}>
+                  <svg width="16" height="16" viewBox="0 0 16 16" fill="none" className="text-muted-foreground hover:text-foreground">
+                    <path d="M4 4L12 12M12 4L4 12" stroke="currentColor" strokeWidth="2" strokeLinecap="round" />
+                  </svg>
+                </button>
+              </div>
+
+              <div className="p-5 space-y-4">
+                {/* Provider selector — visible during searching & results */}
+                {(step === "searching" || step === "results") && (
+                  <div className="flex items-center gap-2">
+                    <label className="text-sm text-muted-foreground whitespace-nowrap">{t("metadata.provider")}</label>
+                    <div className="flex gap-1 flex-wrap">
+                      {visibleProviders.map((p) => (
+                        <button
+                          key={p.value}
+                          type="button"
+                          disabled={step === "searching"}
+                          onClick={() => {
+                            setSearchProvider(p.value);
+                            doSearch(p.value);
+                          }}
+                          className={`inline-flex items-center gap-1.5 px-2.5 py-1 rounded-md text-xs font-medium border transition-colors ${
+                            (activeProvider || searchProvider) === p.value
+                              ? "border-primary bg-primary/10 text-primary"
+                              : "border-border bg-card text-muted-foreground hover:text-foreground hover:border-primary/50"
+                          }`}
+                        >
+                          <ProviderIcon provider={p.value} size={14} />
+                          {p.label}
+                        </button>
+                      ))}
+                    </div>
+                  </div>
+                )}
+
+                {/* SEARCHING */}
+                {step === "searching" && (
+                  <div className="flex items-center justify-center py-12">
+                    <Icon name="spinner" size="lg" className="animate-spin text-primary" />
+                    <span className="ml-3 text-muted-foreground">{t("metadata.searching", { name: seriesName })}</span>
+                  </div>
+                )}
+
+                {/* ERROR */}
+                {error && (
+                  <div className="p-3 rounded-lg bg-destructive/10 text-destructive text-sm">
+                    {error}
+                  </div>
+                )}
+
+                {/* RESULTS */}
+                {step === "results" && (
+                  <>
+                    {candidates.length === 0 && !error ? (
+                      <p className="text-muted-foreground text-center py-8">{t("metadata.noResults")}</p>
+                    ) : (
+                      <div className="space-y-2">
+                        <p className="text-sm text-muted-foreground mb-2">
+                          {t("metadata.resultCount", { count: candidates.length, plural: candidates.length !== 1 ? "s" : "" })}
+                          {activeProvider && (
+                            <span className="ml-1 text-xs inline-flex items-center gap-1">{t("common.via")} <ProviderIcon provider={activeProvider} size={12} /> <span className="font-medium">{providerLabel(activeProvider)}</span></span>
+                          )}
+                        </p>
+                        {candidates.map((c, i) => (
+                          <button
+                            key={i}
+                            type="button"
+                            onClick={() => handleSelectCandidate(c)}
+                            className="w-full text-left px-3 py-2.5 rounded-lg border border-border/60 bg-muted/20 hover:bg-muted/40 hover:border-primary/50 transition-colors"
+                          >
+                            <div className="flex gap-3 items-start">
+                              <div className="w-10 h-14 flex-shrink-0 rounded bg-muted/50 overflow-hidden">
+                                {c.cover_url ? (
+                                  <img src={c.cover_url} alt={c.title} className="w-full h-full object-cover" />
+                                ) : (
+                                  <div className="w-full h-full flex items-center justify-center text-muted-foreground/40">
+                                    <Icon name="image" size="sm" />
+                                  </div>
+                                )}
+                              </div>
+                              <div className="flex-1 min-w-0">
+                                <div className="flex items-center gap-2">
+                                  <span className="font-medium text-sm text-foreground truncate">{c.title}</span>
+                                  {confidenceBadge(c.confidence)}
+                                </div>
+                                {c.authors.length > 0 && (
+                                  <p className="text-xs text-muted-foreground truncate">{c.authors.join(", ")}</p>
+                                )}
+                                <div className="flex items-center gap-2 text-xs text-muted-foreground">
+                                  {c.publishers.length > 0 && <span>{c.publishers[0]}</span>}
+                                  {c.start_year != null && <span>{c.start_year}</span>}
+                                  {c.total_volumes != null && (
+                                    <span>
+                                      {c.total_volumes} {c.metadata_json?.volume_source === "chapters" ? "ch." : "vol."}
+                                    </span>
+                                  )}
+                                  {c.metadata_json?.status === "RELEASING" && (
+                                    <span className="italic text-amber-500">{t("metadata.inProgress")}</span>
+                                  )}
+                                </div>
+                              </div>
+                            </div>
+                          </button>
+                        ))}
+                      </div>
+                    )}
+                  </>
+                )}
+
+                {/* CONFIRM */}
+                {step === "confirm" && selectedCandidate && (
+                  <div className="space-y-4">
+                    <div className="p-4 rounded-lg bg-muted/30 border border-border/50">
+                      <div className="flex gap-3">
+                        {selectedCandidate.cover_url && (
+                          <img
+                            src={selectedCandidate.cover_url}
+                            alt={selectedCandidate.title}
+                            className="w-16 h-22 object-cover rounded"
+                          />
+                        )}
+                        <div>
+                          <h4 className="font-medium text-foreground">{selectedCandidate.title}</h4>
+                          {selectedCandidate.authors.length > 0 && (
+                            <p className="text-sm text-muted-foreground">{selectedCandidate.authors.join(", ")}</p>
+                          )}
+                          {selectedCandidate.total_volumes != null && (
+                            <p className="text-sm text-muted-foreground">
+                              {selectedCandidate.total_volumes} {selectedCandidate.metadata_json?.volume_source === "chapters" ? t("metadata.chapters") : t("metadata.volumes")}
+                              {selectedCandidate.metadata_json?.status === "RELEASING" && <span className="italic text-amber-500 ml-1">({t("metadata.inProgress")})</span>}
+                            </p>
+                          )}
+                          <p className="text-xs text-muted-foreground mt-1 inline-flex items-center gap-1">
+                            {t("common.via")} <ProviderIcon provider={selectedCandidate.provider} size={12} /> <span className="font-medium">{providerLabel(selectedCandidate.provider)}</span>
+                          </p>
+                        </div>
+                      </div>
+                    </div>
+
+                    <p className="text-sm text-foreground font-medium">{t("metadata.howToSync")}</p>
+
+                    <div className="flex flex-col gap-2">
+                      <button
+                        type="button"
+                        onClick={() => handleApprove(true, false)}
+                        className="w-full p-3 rounded-lg border border-border bg-card text-left hover:bg-muted/40 hover:border-primary/50 transition-colors"
+                      >
+                        <p className="font-medium text-sm text-foreground">{t("metadata.syncSeriesOnly")}</p>
+                        <p className="text-xs text-muted-foreground">{t("metadata.syncSeriesOnlyDesc")}</p>
+                      </button>
+                      <button
+                        type="button"
+                        onClick={() => handleApprove(true, true)}
+                        className="w-full p-3 rounded-lg border border-primary/50 bg-primary/5 text-left hover:bg-primary/10 transition-colors"
+                      >
+                        <p className="font-medium text-sm text-foreground">{t("metadata.syncSeriesAndBooks")}</p>
+                        <p className="text-xs text-muted-foreground">{t("metadata.syncSeriesAndBooksDesc")}</p>
+                      </button>
+                    </div>
+
+                    <button
+                      type="button"
+                      onClick={() => { setSelectedCandidate(null); setStep("results"); }}
+                      className="text-sm text-muted-foreground hover:text-foreground"
+                    >
+                      {t("metadata.backToResults")}
+                    </button>
+                  </div>
+                )}
+
+                {/* SYNCING */}
+                {step === "syncing" && (
+                  <div className="flex items-center justify-center py-12">
+                    <Icon name="spinner" size="lg" className="animate-spin text-primary" />
+                    <span className="ml-3 text-muted-foreground">{t("metadata.syncingMetadata")}</span>
+                  </div>
+                )}
+
+                {/* DONE */}
+                {step === "done" && (
+                  <div className="space-y-4">
+                    <div className="p-4 rounded-lg bg-green-500/10 border border-green-500/30">
+                      <p className="font-medium text-green-600">{t("metadata.syncSuccess")}</p>
+                    </div>
+
+                    {/* Sync Report */}
+                    {syncReport && (
+                      <div className="space-y-3">
+                        {/* Series report */}
+                        {syncReport.series && (syncReport.series.fields_updated.length > 0 || syncReport.series.fields_skipped.length > 0) && (
+                          <div className="p-3 rounded-lg bg-muted/30 border border-border/50">
+                            <p className="text-xs font-semibold text-muted-foreground uppercase tracking-wide mb-2">{t("metadata.seriesLabel")}</p>
+                            {syncReport.series.fields_updated.length > 0 && (
+                              <div className="space-y-1">
+                                {syncReport.series.fields_updated.map((f, i) => (
+                                  <div key={i} className="flex items-center gap-2 text-xs">
+                                    <span className="inline-flex items-center gap-1 text-green-600">
+                                      <svg className="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 13l4 4L19 7" /></svg>
+                                    </span>
+                                    <span className="font-medium text-foreground">{fieldLabel(f.field)}</span>
+                                    <span className="text-muted-foreground truncate max-w-[200px]">{formatValue(f.new_value)}</span>
+                                  </div>
+                                ))}
+                              </div>
+                            )}
+                            {syncReport.series.fields_skipped.length > 0 && (
+                              <div className="space-y-1 mt-1">
+                                {syncReport.series.fields_skipped.map((f, i) => (
+                                  <div key={i} className="flex items-center gap-2 text-xs text-amber-500">
+                                    <svg className="w-3 h-3 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+                                    </svg>
+                                    <span className="font-medium">{fieldLabel(f.field)}</span>
+                                    <span className="text-muted-foreground">{t("metadata.locked")}</span>
+                                  </div>
+                                ))}
+                              </div>
+                            )}
+                          </div>
+                        )}
+
+                        {/* Books message (e.g. provider has no volume data) */}
+                        {syncReport.books_message && (
+                          <div className="p-3 rounded-lg bg-amber-500/10 border border-amber-500/30">
+                            <p className="text-xs text-amber-600">{syncReport.books_message}</p>
+                          </div>
+                        )}
+
+                        {/* Books report */}
+                        {!syncReport.books_message && (syncReport.books.length > 0 || syncReport.books_unmatched > 0) && (
+                          <div className="p-3 rounded-lg bg-muted/30 border border-border/50">
+                            <p className="text-xs font-semibold text-muted-foreground uppercase tracking-wide mb-2">
+                              {t("metadata.booksLabel")} — {t("metadata.booksMatched", { matched: syncReport.books_matched, plural: syncReport.books_matched !== 1 ? "s" : "" })}{syncReport.books_unmatched > 0 && `, ${t("metadata.booksUnmatched", { count: syncReport.books_unmatched, plural: syncReport.books_unmatched !== 1 ? "s" : "" })}`}
+                            </p>
+                            {syncReport.books.length > 0 && (
+                              <div className="space-y-2 max-h-48 overflow-y-auto">
+                                {syncReport.books.map((b, i) => (
+                                  <div key={i} className="text-xs">
+                                    <p className="font-medium text-foreground">
+                                      {b.volume != null && <span className="font-mono text-muted-foreground mr-1.5">#{b.volume}</span>}
+                                      {b.title}
+                                    </p>
+                                    <div className="ml-4 space-y-0.5 mt-0.5">
+                                      {b.fields_updated.map((f, j) => (
+                                        <p key={j} className="flex items-center gap-1.5 text-green-600">
+                                          <svg className="w-2.5 h-2.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 13l4 4L19 7" /></svg>
+                                          <span className="font-medium">{fieldLabel(f.field)}</span>
+                                        </p>
+                                      ))}
+                                      {b.fields_skipped.map((f, j) => (
+                                        <p key={`s${j}`} className="flex items-center gap-1.5 text-amber-500">
+                                          <svg className="w-2.5 h-2.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
+                                          </svg>
+                                          <span className="font-medium">{fieldLabel(f.field)}</span>
+                                          <span className="text-muted-foreground">{t("metadata.locked")}</span>
+                                        </p>
+                                      ))}
+                                    </div>
+                                  </div>
+                                ))}
+                              </div>
+                            )}
+                          </div>
+                        )}
+                      </div>
+                    )}
+
+                    {/* Missing books */}
+                    {missing && (
+                      <div className="space-y-3">
+                        <div className="grid grid-cols-3 gap-4 p-4 bg-muted/30 rounded-lg">
+                          <div>
+                            <p className="text-sm text-muted-foreground">{t("metadata.external")}</p>
+                            <p className="text-2xl font-semibold">{missing.total_external}</p>
+                          </div>
+                          <div>
+                            <p className="text-sm text-muted-foreground">{t("metadata.local")}</p>
+                            <p className="text-2xl font-semibold">{missing.total_local}</p>
+                          </div>
+                          <div>
+                            <p className="text-sm text-muted-foreground">{t("metadata.missingLabel")}</p>
+                            <p className="text-2xl font-semibold text-warning">{missing.missing_count}</p>
+                          </div>
+                        </div>
+
+                        {missing.missing_books.length > 0 && (
+                          <div>
+                            <button
+                              type="button"
+                              onClick={() => setShowMissingList(!showMissingList)}
+                              className="text-sm text-muted-foreground hover:text-foreground flex items-center gap-1"
+                            >
+                              <Icon name={showMissingList ? "chevronDown" : "chevronRight"} size="sm" />
+                              {t("metadata.missingBooks", { count: missing.missing_count, plural: missing.missing_count !== 1 ? "s" : "" })}
+                            </button>
+                            {showMissingList && (
+                              <div className="mt-2 max-h-40 overflow-y-auto p-3 bg-muted/20 rounded-lg text-sm space-y-1">
+                                {missing.missing_books.map((b, i) => (
+                                  <p key={i} className="text-muted-foreground truncate">
+                                    {b.volume_number != null && <span className="font-mono mr-2">#{b.volume_number}</span>}
+                                    {b.title || t("metadata.unknown")}
+                                  </p>
+                                ))}
+                              </div>
+                            )}
+                          </div>
+                        )}
+                      </div>
+                    )}
+
+                    <button
+                      type="button"
+                      onClick={() => { handleClose(); router.refresh(); }}
+                      className="w-full p-2.5 rounded-lg bg-primary text-primary-foreground font-medium text-sm hover:bg-primary/90 transition-colors"
+                    >
+                      {t("common.close")}
+                    </button>
+                  </div>
+                )}
+
+                {/* LINKED (already approved) */}
+                {step === "linked" && existingLink && (
+                  <div className="space-y-4">
+                    <div className="p-4 rounded-lg bg-primary/5 border border-primary/30">
+                      <div className="flex items-center justify-between">
+                        <div>
+                          <p className="font-medium text-foreground inline-flex items-center gap-1.5">
+                            {t("metadata.linkedTo")} <ProviderIcon provider={existingLink.provider} size={16} /> {providerLabel(existingLink.provider)}
+                          </p>
+                          {existingLink.external_url && (
+                            <a
+                              href={existingLink.external_url}
+                              target="_blank"
+                              rel="noopener noreferrer"
+                              className="block mt-1 text-xs text-primary hover:underline"
+                            >
+                              {t("metadata.viewExternal")}
+                            </a>
+                          )}
+                        </div>
+                        {existingLink.confidence != null && confidenceBadge(existingLink.confidence)}
+                      </div>
+                    </div>
+
+                    {initialMissing && (
+                      <div className="grid grid-cols-3 gap-4 p-4 bg-muted/30 rounded-lg">
+                        <div>
+                          <p className="text-sm text-muted-foreground">{t("metadata.external")}</p>
+                          <p className="text-2xl font-semibold">{initialMissing.total_external}</p>
+                        </div>
+                        <div>
+                          <p className="text-sm text-muted-foreground">{t("metadata.local")}</p>
+                          <p className="text-2xl font-semibold">{initialMissing.total_local}</p>
+                        </div>
+                        <div>
+                          <p className="text-sm text-muted-foreground">{t("metadata.missingLabel")}</p>
+                          <p className="text-2xl font-semibold text-warning">{initialMissing.missing_count}</p>
+                        </div>
+                      </div>
+                    )}
+
+                    {initialMissing && initialMissing.missing_books.length > 0 && (
+                      <div>
+                        <button
+                          type="button"
+                          onClick={() => setShowMissingList(!showMissingList)}
+                          className="text-sm text-muted-foreground hover:text-foreground flex items-center gap-1"
+                        >
+                          <Icon name={showMissingList ? "chevronDown" : "chevronRight"} size="sm" />
+                          {t("metadata.missingBooks", { count: initialMissing.missing_count, plural: initialMissing.missing_count !== 1 ? "s" : "" })}
+                        </button>
+                        {showMissingList && (
+                          <div className="mt-2 max-h-40 overflow-y-auto p-3 bg-muted/20 rounded-lg text-sm space-y-1">
+                            {initialMissing.missing_books.map((b, i) => (
+                              <p key={i} className="text-muted-foreground truncate">
+                                {b.volume_number != null && <span className="font-mono mr-2">#{b.volume_number}</span>}
+                                {b.title || t("metadata.unknown")}
+                              </p>
+                            ))}
+                          </div>
+                        )}
+                      </div>
+                    )}
+
+                    <div className="flex gap-2">
+                      <button
+                        type="button"
+                        onClick={() => { doSearch(""); }}
+                        className="flex-1 p-2.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
+                      >
+                        {t("metadata.searchAgain")}
+                      </button>
+                      <button
+                        type="button"
+                        onClick={handleUnlink}
+                        className="p-2.5 rounded-lg border border-destructive/30 bg-destructive/5 text-sm font-medium text-destructive hover:bg-destructive/10 transition-colors"
+                      >
+                        {t("metadata.unlink")}
+                      </button>
+                    </div>
+                  </div>
+                )}
+              </div>
+            </div>
+          </div>
+        </>,
+        document.body,
+      )
+    : null;
+
+  return (
+    <>
+      <button
+        onClick={handleOpen}
+        className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
+      >
+        <Icon name="search" size="sm" />
+        {existingLink && existingLink.status === "approved" ? t("metadata.metadataButton") : t("metadata.searchButton")}
+      </button>
+
+      {existingLink && existingLink.status === "approved" && (
+        <span className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full bg-primary/10 text-primary text-xs border border-primary/30">
+          <ProviderIcon provider={existingLink.provider} size={12} />
+          <span>{providerLabel(existingLink.provider)}</span>
+        </span>
+      )}
+
+      {modal}
+    </>
+  );
+}
--- a/apps/backoffice/app/components/MobileNav.tsx
+++ b/apps/backoffice/app/components/MobileNav.tsx
@@ -4,11 +4,12 @@ import { useState, useEffect } from "react";
 import { createPortal } from "react-dom";
 import Link from "next/link";
 import { NavIcon } from "./ui";
+import { useTranslation } from "../../lib/i18n/context";

 type NavItem = {
-  href: "/" | "/books" | "/series" | "/libraries" | "/jobs" | "/tokens" | "/settings";
+  href: "/" | "/books" | "/series" | "/authors" | "/libraries" | "/jobs" | "/tokens" | "/settings";
  label: string;
-  icon: "dashboard" | "books" | "series" | "libraries" | "jobs" | "tokens" | "settings";
+  icon: "dashboard" | "books" | "series" | "authors" | "libraries" | "jobs" | "tokens" | "settings";
 };

 const HamburgerIcon = () => (
@@ -24,6 +25,7 @@ const XIcon = () => (
 );

 export function MobileNav({ navItems }: { navItems: NavItem[] }) {
+  const { t } = useTranslation();
  const [isOpen, setIsOpen] = useState(false);
  const [mounted, setMounted] = useState(false);

@@ -53,7 +55,7 @@ export function MobileNav({ navItems }: { navItems: NavItem[] }) {
        `}
      >
        <div className="h-16 border-b border-border/40 flex items-center px-4">
-          <span className="text-sm font-semibold text-muted-foreground tracking-wide uppercase">Navigation</span>
+          <span className="text-sm font-semibold text-muted-foreground tracking-wide uppercase">{t("nav.navigation")}</span>
        </div>

        <nav className="flex flex-col gap-1 p-3 flex-1">
@@ -76,7 +78,7 @@ export function MobileNav({ navItems }: { navItems: NavItem[] }) {
              onClick={() => setIsOpen(false)}
            >
              <NavIcon name="settings" />
-              <span className="font-medium">Settings</span>
+              <span className="font-medium">{t("nav.settings")}</span>
            </Link>
          </div>
        </nav>
@@ -90,7 +92,7 @@ export function MobileNav({ navItems }: { navItems: NavItem[] }) {
      <button
        className="md:hidden p-2 rounded-lg text-muted-foreground hover:text-foreground hover:bg-accent transition-colors"
        onClick={() => setIsOpen(!isOpen)}
-        aria-label={isOpen ? "Close menu" : "Open menu"}
+        aria-label={isOpen ? t("nav.closeMenu") : t("nav.openMenu")}
        aria-expanded={isOpen}
      >
        {isOpen ? <XIcon /> : <HamburgerIcon />}
--- a/apps/backoffice/app/components/MonitoringForm.tsx
+++ b/apps/backoffice/app/components/MonitoringForm.tsx
@@ -1,6 +1,7 @@
 "use client";

 import { useTransition } from "react";
+import { useTranslation } from "../../lib/i18n/context";

 interface MonitoringFormProps {
  libraryId: string;
@@ -10,6 +11,7 @@ interface MonitoringFormProps {
 }

 export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEnabled }: MonitoringFormProps) {
+  const { t } = useTranslation();
  const [isPending, startTransition] = useTransition();

  const handleSubmit = (formData: FormData) => {
@@ -51,7 +53,7 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
            disabled={isPending}
            className="w-3.5 h-3.5 rounded border-border text-primary focus:ring-primary"
          />
-          <span>Auto</span>
+          <span>{t("monitoring.auto")}</span>
        </label>
        
        <label className={`flex items-center gap-1.5 px-2.5 py-1.5 rounded-lg border text-sm font-medium transition-all cursor-pointer select-none ${
@@ -67,7 +69,7 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
            disabled={isPending}
            className="w-3.5 h-3.5 rounded border-border text-warning focus:ring-warning"
          />
-          <span title="Real-time file watcher">⚡</span>
+          <span title={t("monitoring.fileWatch")}>⚡</span>
        </label>
        
        <select
@@ -76,10 +78,10 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
          disabled={isPending}
          className="px-3 py-1.5 text-sm rounded-lg border border-border bg-card text-foreground focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50"
        >
-          <option value="manual">Manual</option>
-          <option value="hourly">Hourly</option>
-          <option value="daily">Daily</option>
-          <option value="weekly">Weekly</option>
+          <option value="manual">{t("monitoring.manual")}</option>
+          <option value="hourly">{t("monitoring.hourly")}</option>
+          <option value="daily">{t("monitoring.daily")}</option>
+          <option value="weekly">{t("monitoring.weekly")}</option>
        </select>
        
        <button 
--- a/apps/backoffice/app/components/PeriodToggle.tsx
+++ b/apps/backoffice/app/components/PeriodToggle.tsx
@@ -0,0 +1,47 @@
+"use client";
+
+import { useRouter, useSearchParams } from "next/navigation";
+
+type Period = "day" | "week" | "month";
+
+export function PeriodToggle({
+  labels,
+}: {
+  labels: { day: string; week: string; month: string };
+}) {
+  const router = useRouter();
+  const searchParams = useSearchParams();
+  const raw = searchParams.get("period");
+  const current: Period = raw === "day" ? "day" : raw === "week" ? "week" : "month";
+
+  function setPeriod(period: Period) {
+    const params = new URLSearchParams(searchParams.toString());
+    if (period === "month") {
+      params.delete("period");
+    } else {
+      params.set("period", period);
+    }
+    const qs = params.toString();
+    router.push(qs ? `?${qs}` : "/", { scroll: false });
+  }
+
+  const options: Period[] = ["day", "week", "month"];
+
+  return (
+    <div className="flex gap-1 bg-muted rounded-lg p-0.5">
+      {options.map((p) => (
+        <button
+          key={p}
+          onClick={() => setPeriod(p)}
+          className={`px-2.5 py-1 text-xs font-medium rounded-md transition-colors ${
+            current === p
+              ? "bg-card text-foreground shadow-sm"
+              : "text-muted-foreground hover:text-foreground"
+          }`}
+        >
+          {labels[p]}
+        </button>
+      ))}
+    </div>
+  );
+}
--- a/apps/backoffice/app/components/ProviderIcon.tsx
+++ b/apps/backoffice/app/components/ProviderIcon.tsx
@@ -0,0 +1,120 @@
+/** Inline SVG icons for metadata providers */
+
+interface ProviderIconProps {
+  provider: string;
+  size?: number;
+  className?: string;
+}
+
+export function ProviderIcon({ provider, size = 16, className = "" }: ProviderIconProps) {
+  const style = { width: size, height: size, flexShrink: 0 };
+
+  switch (provider) {
+    case "google_books":
+      // Stylized book (Google Books)
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className}>
+          <path
+            d="M21 4H3a1 1 0 0 0-1 1v14a1 1 0 0 0 1 1h18a1 1 0 0 0 1-1V5a1 1 0 0 0-1-1z"
+            fill="#4285F4"
+            opacity="0.15"
+          />
+          <path
+            d="M12 4v16M6 4h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2z"
+            fill="none"
+            stroke="#4285F4"
+            strokeWidth="1.5"
+            strokeLinecap="round"
+            strokeLinejoin="round"
+          />
+          <path d="M7 8h3M7 11h3M14 8h3M14 11h3" stroke="#4285F4" strokeWidth="1.5" strokeLinecap="round" />
+        </svg>
+      );
+
+    case "open_library":
+      // Open book (Open Library)
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className}>
+          <path
+            d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253"
+            fill="none"
+            stroke="#E8590C"
+            strokeWidth="1.5"
+            strokeLinecap="round"
+            strokeLinejoin="round"
+          />
+        </svg>
+      );
+
+    case "comicvine":
+      // Explosion / star burst (ComicVine)
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className}>
+          <path
+            d="M12 2l2.09 6.26L20.18 9l-4.91 4.09L16.54 20 12 16.27 7.46 20l1.27-6.91L3.82 9l6.09-.74z"
+            fill="#E7272D"
+            opacity="0.15"
+          />
+          <path
+            d="M12 2l2.09 6.26L20.18 9l-4.91 4.09L16.54 20 12 16.27 7.46 20l1.27-6.91L3.82 9l6.09-.74z"
+            fill="none"
+            stroke="#E7272D"
+            strokeWidth="1.5"
+            strokeLinejoin="round"
+          />
+        </svg>
+      );
+
+    case "anilist":
+      // Stylized play / triangle (AniList)
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className}>
+          <rect x="3" y="3" width="18" height="18" rx="3" fill="#02A9FF" opacity="0.15" />
+          <path
+            d="M8 6h2.5l4 12H12l-.75-2.5H7.75L7 18H4.5L8 6zm-.25 7.5h3.5L9.5 8.25 7.75 13.5z"
+            fill="#02A9FF"
+          />
+          <path d="M16 10h2.5v8H16z" fill="#02A9FF" />
+        </svg>
+      );
+
+    case "bedetheque":
+      // French flag-inspired book (Bédéthèque)
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className}>
+          <rect x="3" y="4" width="6" height="16" rx="1" fill="#002395" opacity="0.2" />
+          <rect x="9" y="4" width="6" height="16" fill="#FFFFFF" opacity="0.1" />
+          <rect x="15" y="4" width="6" height="16" rx="1" fill="#ED2939" opacity="0.2" />
+          <path
+            d="M6 4h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2z"
+            fill="none"
+            stroke="#002395"
+            strokeWidth="1.5"
+            strokeLinejoin="round"
+          />
+          <path d="M8 9h8M8 12h6M8 15h4" stroke="#002395" strokeWidth="1.5" strokeLinecap="round" />
+        </svg>
+      );
+
+    default:
+      // Generic globe
+      return (
+        <svg viewBox="0 0 24 24" style={style} className={className} fill="none" stroke="currentColor" strokeWidth="1.5">
+          <circle cx="12" cy="12" r="9" />
+          <path d="M3.6 9h16.8M3.6 15h16.8M12 3a15 15 0 0 1 0 18M12 3a15 15 0 0 0 0 18" strokeLinecap="round" />
+        </svg>
+      );
+  }
+}
+
+export const PROVIDERS = [
+  { value: "google_books", label: "Google Books" },
+  { value: "open_library", label: "Open Library" },
+  { value: "comicvine", label: "ComicVine" },
+  { value: "anilist", label: "AniList" },
+  { value: "bedetheque", label: "Bédéthèque" },
+] as const;
+
+export function providerLabel(value: string) {
+  return PROVIDERS.find((p) => p.value === value)?.label ?? value.replace("_", " ");
+}
--- a/apps/backoffice/app/components/ProwlarrSearchModal.tsx
+++ b/apps/backoffice/app/components/ProwlarrSearchModal.tsx
@@ -0,0 +1,383 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+import { createPortal } from "react-dom";
+import { Icon } from "./ui";
+import type { ProwlarrRelease, ProwlarrSearchResponse } from "../../lib/api";
+import { useTranslation } from "../../lib/i18n/context";
+
+interface MissingBookItem {
+  title: string | null;
+  volume_number: number | null;
+  external_book_id: string | null;
+}
+
+interface ProwlarrSearchModalProps {
+  seriesName: string;
+  missingBooks: MissingBookItem[] | null;
+}
+
+function formatSize(bytes: number): string {
+  if (bytes >= 1073741824) return (bytes / 1073741824).toFixed(1) + " GB";
+  if (bytes >= 1048576) return (bytes / 1048576).toFixed(1) + " MB";
+  if (bytes >= 1024) return (bytes / 1024).toFixed(0) + " KB";
+  return bytes + " B";
+}
+
+export function ProwlarrSearchModal({ seriesName, missingBooks }: ProwlarrSearchModalProps) {
+  const { t } = useTranslation();
+  const [isOpen, setIsOpen] = useState(false);
+  const [isConfigured, setIsConfigured] = useState<boolean | null>(null);
+  const [isSearching, setIsSearching] = useState(false);
+  const [results, setResults] = useState<ProwlarrRelease[]>([]);
+  const [query, setQuery] = useState("");
+  const [error, setError] = useState<string | null>(null);
+
+  // qBittorrent state
+  const [isQbConfigured, setIsQbConfigured] = useState(false);
+  const [sendingGuid, setSendingGuid] = useState<string | null>(null);
+  const [sentGuids, setSentGuids] = useState<Set<string>>(new Set());
+  const [sendError, setSendError] = useState<string | null>(null);
+
+  // Check if Prowlarr and qBittorrent are configured on mount
+  useEffect(() => {
+    fetch("/api/settings/prowlarr")
+      .then((r) => (r.ok ? r.json() : null))
+      .then((data) => {
+        setIsConfigured(!!(data && data.api_key && data.api_key.trim()));
+      })
+      .catch(() => setIsConfigured(false));
+    fetch("/api/settings/qbittorrent")
+      .then((r) => (r.ok ? r.json() : null))
+      .then((data) => {
+        setIsQbConfigured(!!(data && data.url && data.url.trim() && data.username && data.username.trim()));
+      })
+      .catch(() => setIsQbConfigured(false));
+  }, []);
+
+  const [searchInput, setSearchInput] = useState(`"${seriesName}"`);
+
+  const doSearch = useCallback(async (queryOverride?: string) => {
+    const searchQuery = queryOverride ?? searchInput;
+    if (!searchQuery.trim()) return;
+    setIsSearching(true);
+    setError(null);
+    setResults([]);
+    try {
+      const missing_volumes = missingBooks?.map((b) => ({
+        volume_number: b.volume_number,
+        title: b.title,
+      })) ?? undefined;
+      const body = { series_name: seriesName, custom_query: searchQuery.trim(), missing_volumes };
+      const resp = await fetch("/api/prowlarr/search", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(body),
+      });
+      const data = await resp.json();
+      if (data.error) {
+        setError(data.error);
+      } else {
+        const searchResp = data as ProwlarrSearchResponse;
+        setResults(searchResp.results);
+        setQuery(searchResp.query);
+      }
+    } catch {
+      setError(t("prowlarr.searchError"));
+    } finally {
+      setIsSearching(false);
+    }
+  }, [t, seriesName, searchInput]);
+
+  const defaultQuery = `"${seriesName}"`;
+
+  function handleOpen() {
+    setIsOpen(true);
+    setResults([]);
+    setError(null);
+    setQuery("");
+    setSearchInput(defaultQuery);
+    // Auto-search the series on open
+    doSearch(defaultQuery);
+  }
+
+  function handleClose() {
+    setIsOpen(false);
+  }
+
+  async function handleSendToQbittorrent(downloadUrl: string, guid: string) {
+    setSendingGuid(guid);
+    setSendError(null);
+    try {
+      const resp = await fetch("/api/qbittorrent/add", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ url: downloadUrl }),
+      });
+      const data = await resp.json();
+      if (data.error) {
+        setSendError(data.error);
+      } else if (data.success) {
+        setSentGuids((prev) => new Set(prev).add(guid));
+      } else {
+        setSendError(data.message || t("prowlarr.sentError"));
+      }
+    } catch {
+      setSendError(t("prowlarr.sentError"));
+    } finally {
+      setSendingGuid(null);
+    }
+  }
+
+  // Don't render button if not configured
+  if (isConfigured === false) return null;
+  if (isConfigured === null) return null;
+
+  const modal = isOpen
+    ? createPortal(
+        <>
+          <div
+            className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
+            onClick={handleClose}
+          />
+          <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
+            <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-5xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
+              {/* Header */}
+              <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
+                <h3 className="font-semibold text-foreground">{t("prowlarr.modalTitle")}</h3>
+                <button type="button" onClick={handleClose}>
+                  <svg width="16" height="16" viewBox="0 0 16 16" fill="none" className="text-muted-foreground hover:text-foreground">
+                    <path d="M4 4L12 12M12 4L4 12" stroke="currentColor" strokeWidth="2" strokeLinecap="round" />
+                  </svg>
+                </button>
+              </div>
+
+              <div className="p-5 space-y-4">
+              {/* Search input */}
+              <form
+                onSubmit={(e) => {
+                  e.preventDefault();
+                  if (searchInput.trim()) doSearch(searchInput.trim());
+                }}
+                className="flex items-center gap-2"
+              >
+                <input
+                  type="text"
+                  value={searchInput}
+                  onChange={(e) => setSearchInput(e.target.value)}
+                  className="flex-1 px-3 py-2 rounded-lg border border-border bg-background text-sm text-foreground placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-primary/50 focus:border-primary"
+                  placeholder={t("prowlarr.searchPlaceholder")}
+                />
+                <button
+                  type="submit"
+                  disabled={isSearching || !searchInput.trim()}
+                  className="inline-flex items-center gap-1.5 px-4 py-2 rounded-lg text-sm font-medium bg-primary text-primary-foreground hover:bg-primary/90 disabled:opacity-50 transition-colors"
+                >
+                  <Icon name="search" size="sm" />
+                  {t("prowlarr.searchAction")}
+                </button>
+              </form>
+
+              {/* Quick search badges */}
+              <div className="flex flex-wrap items-center gap-2 max-h-24 overflow-y-auto">
+                <button
+                  type="button"
+                  onClick={() => { setSearchInput(defaultQuery); doSearch(defaultQuery); }}
+                  disabled={isSearching}
+                  className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium border border-primary/50 bg-primary/10 text-primary hover:bg-primary/20 disabled:opacity-50 transition-colors"
+                >
+                  {seriesName}
+                </button>
+              {missingBooks && missingBooks.length > 0 && missingBooks.map((book, i) => {
+                const label = book.title || `Vol. ${book.volume_number}`;
+                const q = book.volume_number != null ? `"${seriesName}" ${book.volume_number}` : `"${seriesName}" ${label}`;
+                return (
+                  <button
+                    key={i}
+                    type="button"
+                    onClick={() => { setSearchInput(q); doSearch(q); }}
+                    disabled={isSearching}
+                    className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium border border-border bg-muted/30 hover:bg-muted/50 disabled:opacity-50 transition-colors"
+                  >
+                    {label}
+                  </button>
+                );
+              })}
+              </div>
+
+              {/* Error */}
+              {error && (
+                <div className="p-3 rounded-lg bg-destructive/10 text-destructive text-sm">
+                  {error}
+                </div>
+              )}
+
+              {/* Searching indicator */}
+              {isSearching && (
+                <div className="flex items-center gap-2 text-muted-foreground text-sm">
+                  <Icon name="spinner" size="sm" className="animate-spin" />
+                  {t("prowlarr.searching")}
+                </div>
+              )}
+
+              {/* Results */}
+              {!isSearching && results.length > 0 && (
+                <div>
+                  <p className="text-sm text-muted-foreground mb-3">
+                    {t("prowlarr.resultCount", { count: results.length, plural: results.length !== 1 ? "s" : "" })}
+                    {query && <span className="ml-1 text-xs opacity-70">({query})</span>}
+                  </p>
+                  <div className="overflow-x-auto rounded-lg border border-border">
+                    <table className="w-full text-sm">
+                      <thead>
+                        <tr className="bg-muted/50 text-left">
+                          <th className="px-3 py-2 font-medium text-muted-foreground">{t("prowlarr.columnTitle")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground">{t("prowlarr.columnIndexer")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground text-right">{t("prowlarr.columnSize")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground text-center">{t("prowlarr.columnSeeders")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground text-center">{t("prowlarr.columnLeechers")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground">{t("prowlarr.columnProtocol")}</th>
+                          <th className="px-3 py-2 font-medium text-muted-foreground text-right"></th>
+                        </tr>
+                      </thead>
+                      <tbody className="divide-y divide-border">
+                        {results.map((release, i) => {
+                          const hasMissing = release.matchedMissingVolumes && release.matchedMissingVolumes.length > 0;
+                          return (
+                          <tr key={release.guid || i} className={`transition-colors ${hasMissing ? "bg-green-500/10 hover:bg-green-500/20 border-l-2 border-l-green-500" : "hover:bg-muted/20"}`}>
+                            <td className="px-3 py-2 max-w-[400px]">
+                              <span className="truncate block" title={release.title}>
+                                {release.title}
+                              </span>
+                              {hasMissing && (
+                                <div className="flex items-center gap-1 mt-1">
+                                  {release.matchedMissingVolumes!.map((vol) => (
+                                    <span key={vol} className="inline-flex items-center px-1.5 py-0.5 rounded text-[10px] font-medium bg-green-500/20 text-green-600">
+                                      {t("prowlarr.missingVol", { vol })}
+                                    </span>
+                                  ))}
+                                </div>
+                              )}
+                            </td>
+                            <td className="px-3 py-2 text-muted-foreground whitespace-nowrap">
+                              {release.indexer || "—"}
+                            </td>
+                            <td className="px-3 py-2 text-right text-muted-foreground whitespace-nowrap">
+                              {release.size > 0 ? formatSize(release.size) : "—"}
+                            </td>
+                            <td className="px-3 py-2 text-center">
+                              {release.seeders != null ? (
+                                <span className={release.seeders > 0 ? "text-green-500 font-medium" : "text-muted-foreground"}>
+                                  {release.seeders}
+                                </span>
+                              ) : "—"}
+                            </td>
+                            <td className="px-3 py-2 text-center text-muted-foreground">
+                              {release.leechers != null ? release.leechers : "—"}
+                            </td>
+                            <td className="px-3 py-2">
+                              {release.protocol && (
+                                <span className={`inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium ${
+                                  release.protocol === "torrent"
+                                    ? "bg-blue-500/15 text-blue-600"
+                                    : "bg-amber-500/15 text-amber-600"
+                                }`}>
+                                  {release.protocol}
+                                </span>
+                              )}
+                            </td>
+                            <td className="px-3 py-2">
+                              <div className="flex items-center justify-end gap-1.5">
+                                {isQbConfigured && release.downloadUrl && (
+                                  <button
+                                    type="button"
+                                    onClick={() => handleSendToQbittorrent(release.downloadUrl!, release.guid)}
+                                    disabled={sendingGuid === release.guid || sentGuids.has(release.guid)}
+                                    className={`inline-flex items-center justify-center w-7 h-7 rounded-md transition-colors disabled:opacity-50 ${
+                                      sentGuids.has(release.guid)
+                                        ? "text-green-500"
+                                        : "text-primary hover:bg-primary/10"
+                                    }`}
+                                    title={sentGuids.has(release.guid) ? t("prowlarr.sentSuccess") : t("prowlarr.sendToQbittorrent")}
+                                  >
+                                    {sendingGuid === release.guid ? (
+                                      <Icon name="spinner" size="sm" className="animate-spin" />
+                                    ) : sentGuids.has(release.guid) ? (
+                                      <svg width="14" height="14" viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                                        <path d="M3 8l4 4 6-7" />
+                                      </svg>
+                                    ) : (
+                                      <svg width="14" height="14" viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                                        <path d="M14 8V14H2V2H8M10 2H14V6M14 2L7 9" />
+                                      </svg>
+                                    )}
+                                  </button>
+                                )}
+                                {release.downloadUrl && (
+                                  <a
+                                    href={release.downloadUrl}
+                                    target="_blank"
+                                    rel="noopener noreferrer"
+                                    className="inline-flex items-center justify-center w-7 h-7 rounded-md text-primary hover:bg-primary/10 transition-colors"
+                                    title={t("prowlarr.download")}
+                                  >
+                                    <svg width="14" height="14" viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                                      <path d="M8 2v8M4 7l4 4 4-4M2 13h12" />
+                                    </svg>
+                                  </a>
+                                )}
+                                {release.infoUrl && (
+                                  <a
+                                    href={release.infoUrl}
+                                    target="_blank"
+                                    rel="noopener noreferrer"
+                                    className="inline-flex items-center justify-center w-7 h-7 rounded-md text-muted-foreground hover:bg-muted/50 transition-colors"
+                                    title={t("prowlarr.info")}
+                                  >
+                                    <Icon name="externalLink" size="sm" />
+                                  </a>
+                                )}
+                              </div>
+                            </td>
+                          </tr>
+                          );
+                        })}
+                      </tbody>
+                    </table>
+                  </div>
+                </div>
+              )}
+
+              {/* qBittorrent send error */}
+              {sendError && (
+                <div className="p-3 rounded-lg bg-destructive/10 text-destructive text-sm">
+                  {sendError}
+                </div>
+              )}
+
+              {/* No results */}
+              {!isSearching && !error && query && results.length === 0 && (
+                <p className="text-sm text-muted-foreground">{t("prowlarr.noResults")}</p>
+              )}
+              </div>
+            </div>
+          </div>
+        </>,
+        document.body,
+      )
+    : null;
+
+  return (
+    <>
+      <button
+        type="button"
+        onClick={handleOpen}
+        className="inline-flex items-center gap-2 px-3 py-2 rounded-lg text-sm font-medium border border-border bg-card text-muted-foreground hover:text-foreground hover:border-primary/50 transition-colors"
+      >
+        <Icon name="search" size="sm" />
+        {t("prowlarr.searchButton")}
+      </button>
+      {modal}
+    </>
+  );
+}
--- a/apps/backoffice/app/components/SafeHtml.tsx
+++ b/apps/backoffice/app/components/SafeHtml.tsx
@@ -0,0 +1,29 @@
+import sanitizeHtml from "sanitize-html";
+import React from "react";
+
+interface SafeHtmlProps {
+  html: string;
+  className?: string;
+  as?: "div" | "p" | "span";
+}
+
+const sanitizeOptions: sanitizeHtml.IOptions = {
+  allowedTags: [
+    "b", "i", "em", "strong", "a", "p", "br", "ul", "ol", "li",
+    "h1", "h2", "h3", "h4", "h5", "h6", "blockquote", "span",
+  ],
+  allowedAttributes: {
+    a: ["href", "target", "rel"],
+    span: ["class"],
+  },
+  transformTags: {
+    a: sanitizeHtml.simpleTransform("a", { target: "_blank", rel: "noopener noreferrer" }),
+  },
+};
+
+export function SafeHtml({ html, className, as: tag = "div" }: SafeHtmlProps) {
+  return React.createElement(tag, {
+    className,
+    dangerouslySetInnerHTML: { __html: sanitizeHtml(html, sanitizeOptions) },
+  });
+}
--- a/apps/backoffice/app/components/SeriesFilters.tsx
+++ b/apps/backoffice/app/components/SeriesFilters.tsx
@@ -0,0 +1,53 @@
+"use client";
+
+import { useRouter, useSearchParams } from "next/navigation";
+import { useCallback } from "react";
+import { useTranslation } from "../../lib/i18n/context";
+
+interface SeriesFiltersProps {
+  basePath: string;
+  currentSeriesStatus?: string;
+  currentHasMissing: boolean;
+  seriesStatusOptions: { value: string; label: string }[];
+}
+
+export function SeriesFilters({ basePath, currentSeriesStatus, currentHasMissing, seriesStatusOptions }: SeriesFiltersProps) {
+  const router = useRouter();
+  const searchParams = useSearchParams();
+  const { t } = useTranslation();
+
+  const updateFilter = useCallback((key: string, value: string) => {
+    const params = new URLSearchParams(searchParams.toString());
+    if (value) {
+      params.set(key, value);
+    } else {
+      params.delete(key);
+    }
+    params.delete("page");
+    const qs = params.toString();
+    router.push(`${basePath}${qs ? `?${qs}` : ""}` as any);
+  }, [router, searchParams, basePath]);
+
+  return (
+    <div className="flex flex-wrap gap-3">
+      <select
+        value={currentSeriesStatus || ""}
+        onChange={(e) => updateFilter("series_status", e.target.value)}
+        className="px-3 py-2 rounded-lg border border-border bg-card text-foreground text-sm"
+      >
+        {seriesStatusOptions.map((opt) => (
+          <option key={opt.value} value={opt.value}>{opt.label}</option>
+        ))}
+      </select>
+
+      <select
+        value={currentHasMissing ? "true" : ""}
+        onChange={(e) => updateFilter("has_missing", e.target.value)}
+        className="px-3 py-2 rounded-lg border border-border bg-card text-foreground text-sm"
+      >
+        <option value="">{t("seriesFilters.all")}</option>
+        <option value="true">{t("seriesFilters.missingBooks")}</option>
+      </select>
+    </div>
+  );
+}
--- a/apps/backoffice/app/components/ui/Badge.tsx
+++ b/apps/backoffice/app/components/ui/Badge.tsx
@@ -1,4 +1,7 @@
+"use client";
+
 import { ReactNode } from "react";
+import { useTranslation } from "../../../lib/i18n/context";

 type BadgeVariant = 
  | "default" 
@@ -70,19 +73,19 @@ const statusVariants: Record<string, BadgeVariant> = {
  unread: "unread",
 };

-const statusLabels: Record<string, string> = {
-  extracting_pages: "Extracting pages",
-  generating_thumbnails: "Thumbnails",
-};
-
 interface StatusBadgeProps {
  status: string;
  className?: string;
 }

 export function StatusBadge({ status, className = "" }: StatusBadgeProps) {
+  const { t } = useTranslation();
  const key = status.toLowerCase();
  const variant = statusVariants[key] || "default";
+  const statusLabels: Record<string, string> = {
+    extracting_pages: t("statusBadge.extracting_pages"),
+    generating_thumbnails: t("statusBadge.generating_thumbnails"),
+  };
  const label = statusLabels[key] ?? status;
  return <Badge variant={variant} className={className}>{label}</Badge>;
 }
@@ -90,27 +93,31 @@ export function StatusBadge({ status, className = "" }: StatusBadgeProps) {
 // Job type badge
 const jobTypeVariants: Record<string, BadgeVariant> = {
  rebuild: "primary",
+  rescan: "primary",
  full_rebuild: "warning",
  thumbnail_rebuild: "secondary",
  thumbnail_regenerate: "warning",
 };

-const jobTypeLabels: Record<string, string> = {
-  rebuild: "Index",
-  full_rebuild: "Full Index",
-  thumbnail_rebuild: "Thumbnails",
-  thumbnail_regenerate: "Regen. Thumbnails",
-  cbr_to_cbz: "CBR → CBZ",
-};
-
 interface JobTypeBadgeProps {
  type: string;
  className?: string;
 }

 export function JobTypeBadge({ type, className = "" }: JobTypeBadgeProps) {
+  const { t } = useTranslation();
  const key = type.toLowerCase();
  const variant = jobTypeVariants[key] || "default";
+  const jobTypeLabels: Record<string, string> = {
+    rebuild: t("jobType.rebuild"),
+    rescan: t("jobType.rescan"),
+    full_rebuild: t("jobType.full_rebuild"),
+    thumbnail_rebuild: t("jobType.thumbnail_rebuild"),
+    thumbnail_regenerate: t("jobType.thumbnail_regenerate"),
+    cbr_to_cbz: t("jobType.cbr_to_cbz"),
+    metadata_batch: t("jobType.metadata_batch"),
+    metadata_refresh: t("jobType.metadata_refresh"),
+  };
  const label = jobTypeLabels[key] ?? type;
  return <Badge variant={variant} className={className}>{label}</Badge>;
 }
--- a/apps/backoffice/app/components/ui/Icon.tsx
+++ b/apps/backoffice/app/components/ui/Icon.tsx
@@ -31,7 +31,11 @@ type IconName =
  | "play"
  | "stop"
  | "spinner"
-  | "warning";
+  | "warning"
+  | "tag"
+  | "document"
+  | "authors"
+  | "bell";

 type IconSize = "sm" | "md" | "lg" | "xl";

@@ -82,6 +86,10 @@ const icons: Record<IconName, string> = {
  stop: "M21 12a9 9 0 11-18 0 9 9 0 0118 0z M9 10a1 1 0 011-1h4a1 1 0 011 1v4a1 1 0 01-1 1h-4a1 1 0 01-1-1v-4z",
  spinner: "M4 4v5h.582m15.582 0A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15",
  warning: "M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z",
+  tag: "M7 7h.01M7 3h5a1.99 1.99 0 011.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z",
+  document: "M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z",
+  authors: "M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z",
+  bell: "M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9",
 };

 const colorClasses: Partial<Record<IconName, string>> = {
@@ -95,6 +103,7 @@ const colorClasses: Partial<Record<IconName, string>> = {
  image: "text-primary",
  cache: "text-warning",
  performance: "text-success",
+  authors: "text-violet-500",
 };

 export function Icon({ name, size = "md", className = "" }: IconProps) {
--- a/apps/backoffice/app/components/ui/Pagination.tsx
+++ b/apps/backoffice/app/components/ui/Pagination.tsx
@@ -3,6 +3,7 @@
 import { useRouter, useSearchParams } from "next/navigation";
 import { Button } from "./Button";
 import { IconButton } from "./Button";
+import { useTranslation } from "../../../lib/i18n/context";

 interface CursorPaginationProps {
  hasNextPage: boolean;
@@ -23,6 +24,7 @@ export function CursorPagination({
 }: CursorPaginationProps) {
  const router = useRouter();
  const searchParams = useSearchParams();
+  const { t } = useTranslation();

  const goToNext = () => {
    if (!nextCursor) return;
@@ -48,7 +50,7 @@ export function CursorPagination({
    <div className="flex flex-col sm:flex-row items-center justify-between gap-6 mt-8 pt-8 border-t border-border/60">
      {/* Page size selector */}
      <div className="flex items-center gap-3">
-        <span className="text-sm text-muted-foreground">Show</span>
+        <span className="text-sm text-muted-foreground">{t("pagination.show")}</span>
        <select
          value={pageSize.toString()}
          onChange={(e) => changePageSize(Number(e.target.value))}
@@ -60,12 +62,12 @@ export function CursorPagination({
            </option>
          ))}
        </select>
-        <span className="text-sm text-muted-foreground">per page</span>
+        <span className="text-sm text-muted-foreground">{t("common.perPage")}</span>
      </div>

      {/* Count info */}
      <div className="text-sm text-muted-foreground">
-        Showing {currentCount} items
+        {t("pagination.displaying", { count: currentCount.toString() })}
      </div>

      {/* Navigation */}
@@ -79,7 +81,7 @@ export function CursorPagination({
          <svg className="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 19l-7-7 7-7m8 14l-7-7 7-7" />
          </svg>
-          First
+          {t("common.first")}
        </Button>

        <Button
@@ -88,7 +90,7 @@ export function CursorPagination({
          onClick={goToNext}
          disabled={!hasNextPage}
        >
-          Next
+          {t("common.next")}
          <svg className="w-4 h-4 ml-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
          </svg>
@@ -115,6 +117,7 @@ export function OffsetPagination({
 }: OffsetPaginationProps) {
  const router = useRouter();
  const searchParams = useSearchParams();
+  const { t } = useTranslation();

  const goToPage = (page: number) => {
    const params = new URLSearchParams(searchParams);
@@ -170,7 +173,7 @@ export function OffsetPagination({
    <div className="flex flex-col sm:flex-row items-center justify-between gap-6 mt-8 pt-8 border-t border-border/60">
      {/* Page size selector */}
      <div className="flex items-center gap-3">
-        <span className="text-sm text-muted-foreground">Show</span>
+        <span className="text-sm text-muted-foreground">{t("pagination.show")}</span>
        <select
          value={pageSize.toString()}
          onChange={(e) => changePageSize(Number(e.target.value))}
@@ -182,12 +185,12 @@ export function OffsetPagination({
            </option>
          ))}
        </select>
-        <span className="text-sm text-muted-foreground">per page</span>
+        <span className="text-sm text-muted-foreground">{t("common.perPage")}</span>
      </div>

      {/* Page info */}
      <div className="text-sm text-muted-foreground">
-        {startItem}-{endItem} of {totalItems}
+        {t("pagination.range", { start: startItem.toString(), end: endItem.toString(), total: totalItems.toString() })}
      </div>

      {/* Page navigation */}
@@ -196,7 +199,7 @@ export function OffsetPagination({
          size="sm"
          onClick={() => goToPage(currentPage - 1)}
          disabled={currentPage <= 1}
-          title="Previous page"
+          title={t("common.previousPage")}
        >
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
@@ -224,7 +227,7 @@ export function OffsetPagination({
          size="sm"
          onClick={() => goToPage(currentPage + 1)}
          disabled={currentPage >= totalPages}
-          title="Next page"
+          title={t("common.nextPage")}
        >
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
--- a/apps/backoffice/app/jobs/[id]/page.tsx
+++ b/apps/backoffice/app/jobs/[id]/page.tsx
@@ -1,10 +1,14 @@
+export const dynamic = "force-dynamic";
+
 import { notFound } from "next/navigation";
 import Link from "next/link";
-import { apiFetch } from "../../../lib/api";
+import { apiFetch, getMetadataBatchReport, getMetadataBatchResults, getMetadataRefreshReport, MetadataBatchReportDto, MetadataBatchResultDto, MetadataRefreshReportDto } from "../../../lib/api";
 import {
  Card, CardHeader, CardTitle, CardDescription, CardContent,
  StatusBadge, JobTypeBadge, StatBox, ProgressBar
 } from "../../components/ui";
+import { JobDetailLive } from "../../components/JobDetailLive";
+import { getServerTranslations } from "../../../lib/i18n/server";

 interface JobDetailPageProps {
  params: Promise<{ id: string }>;
@@ -42,33 +46,6 @@ interface JobError {
  created_at: string;
 }

-const JOB_TYPE_INFO: Record<string, { label: string; description: string; isThumbnailOnly: boolean }> = {
-  rebuild: {
-    label: "Incremental index",
-    description: "Scans for new/modified files, analyzes them and generates missing thumbnails.",
-    isThumbnailOnly: false,
-  },
-  full_rebuild: {
-    label: "Full re-index",
-    description: "Clears all existing data then performs a complete re-scan, re-analysis and thumbnail generation.",
-    isThumbnailOnly: false,
-  },
-  thumbnail_rebuild: {
-    label: "Thumbnail rebuild",
-    description: "Generates thumbnails only for books that are missing one. Existing thumbnails are preserved.",
-    isThumbnailOnly: true,
-  },
-  thumbnail_regenerate: {
-    label: "Thumbnail regeneration",
-    description: "Regenerates all thumbnails from scratch, replacing existing ones.",
-    isThumbnailOnly: true,
-  },
-  cbr_to_cbz: {
-    label: "CBR → CBZ conversion",
-    description: "Converts a CBR archive to the open CBZ format.",
-    isThumbnailOnly: false,
-  },
-};

 async function getJobDetails(jobId: string): Promise<JobDetails | null> {
  try {
@@ -112,6 +89,70 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
    notFound();
  }

+  const { t, locale } = await getServerTranslations();
+
+  const JOB_TYPE_INFO: Record<string, { label: string; description: string; isThumbnailOnly: boolean }> = {
+    rebuild: {
+      label: t("jobType.rebuildLabel"),
+      description: t("jobType.rebuildDesc"),
+      isThumbnailOnly: false,
+    },
+    full_rebuild: {
+      label: t("jobType.full_rebuildLabel"),
+      description: t("jobType.full_rebuildDesc"),
+      isThumbnailOnly: false,
+    },
+    rescan: {
+      label: t("jobType.rescanLabel"),
+      description: t("jobType.rescanDesc"),
+      isThumbnailOnly: false,
+    },
+    thumbnail_rebuild: {
+      label: t("jobType.thumbnail_rebuildLabel"),
+      description: t("jobType.thumbnail_rebuildDesc"),
+      isThumbnailOnly: true,
+    },
+    thumbnail_regenerate: {
+      label: t("jobType.thumbnail_regenerateLabel"),
+      description: t("jobType.thumbnail_regenerateDesc"),
+      isThumbnailOnly: true,
+    },
+    cbr_to_cbz: {
+      label: t("jobType.cbr_to_cbzLabel"),
+      description: t("jobType.cbr_to_cbzDesc"),
+      isThumbnailOnly: false,
+    },
+    metadata_batch: {
+      label: t("jobType.metadata_batchLabel"),
+      description: t("jobType.metadata_batchDesc"),
+      isThumbnailOnly: false,
+    },
+    metadata_refresh: {
+      label: t("jobType.metadata_refreshLabel"),
+      description: t("jobType.metadata_refreshDesc"),
+      isThumbnailOnly: false,
+    },
+  };
+
+  const isMetadataBatch = job.type === "metadata_batch";
+  const isMetadataRefresh = job.type === "metadata_refresh";
+
+  // Fetch batch report & results for metadata_batch jobs
+  let batchReport: MetadataBatchReportDto | null = null;
+  let batchResults: MetadataBatchResultDto[] = [];
+  if (isMetadataBatch) {
+    [batchReport, batchResults] = await Promise.all([
+      getMetadataBatchReport(id).catch(() => null),
+      getMetadataBatchResults(id).catch(() => []),
+    ]);
+  }
+
+  // Fetch refresh report for metadata_refresh jobs
+  let refreshReport: MetadataRefreshReportDto | null = null;
+  if (isMetadataRefresh) {
+    refreshReport = await getMetadataRefreshReport(id).catch(() => null);
+  }
+
  const typeInfo = JOB_TYPE_INFO[job.type] ?? {
    label: job.type,
    description: null,
@@ -125,27 +166,36 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
  const isCompleted = job.status === "success";
  const isFailed = job.status === "failed";
  const isCancelled = job.status === "cancelled";
+  const isTerminal = isCompleted || isFailed || isCancelled;
  const isExtractingPages = job.status === "extracting_pages";
  const isThumbnailPhase = job.status === "generating_thumbnails";
  const isPhase2 = isExtractingPages || isThumbnailPhase;
  const { isThumbnailOnly } = typeInfo;

  // Which label to use for the progress card
-  const progressTitle = isThumbnailOnly
-    ? "Thumbnails"
-    : isExtractingPages
-      ? "Phase 2 — Extracting pages"
-      : isThumbnailPhase
-        ? "Phase 2 — Thumbnails"
-        : "Phase 1 — Discovery";
+  const progressTitle = isMetadataBatch
+    ? t("jobDetail.metadataSearch")
+    : isMetadataRefresh
+    ? t("jobDetail.metadataRefresh")
+    : isThumbnailOnly
+      ? t("jobType.thumbnail_rebuild")
+      : isExtractingPages
+        ? t("jobDetail.phase2a")
+        : isThumbnailPhase
+          ? t("jobDetail.phase2b")
+          : t("jobDetail.phase1");

-  const progressDescription = isThumbnailOnly
-    ? undefined
-    : isExtractingPages
-      ? "Extracting first page from each archive (page count + raw image)"
-      : isThumbnailPhase
-        ? "Generating thumbnails for the analyzed books"
-        : "Scanning and indexing files in the library";
+  const progressDescription = isMetadataBatch
+    ? t("jobDetail.metadataSearchDesc")
+    : isMetadataRefresh
+    ? t("jobDetail.metadataRefreshDesc")
+    : isThumbnailOnly
+      ? undefined
+      : isExtractingPages
+        ? t("jobDetail.phase2aDesc")
+        : isThumbnailPhase
+          ? t("jobDetail.phase2bDesc")
+          : t("jobDetail.phase1Desc");

  // Speed metric: thumbnail count for thumbnail jobs, scanned files for index jobs
  const speedCount = isThumbnailOnly
@@ -158,6 +208,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {

  return (
    <>
+      <JobDetailLive jobId={id} isTerminal={isTerminal} />
      <div className="mb-6">
        <Link
          href="/jobs"
@@ -166,9 +217,9 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
          <svg className="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
          </svg>
-          Back to jobs
+          {t("jobDetail.backToJobs")}
        </Link>
-        <h1 className="text-3xl font-bold text-foreground mt-2">Job Details</h1>
+        <h1 className="text-3xl font-bold text-foreground mt-2">{t("jobDetail.title")}</h1>
      </div>

      {/* Summary banner — completed */}
@@ -178,19 +229,29 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
          </svg>
          <div className="text-sm text-success">
-            <span className="font-semibold">Completed in {formatDuration(job.started_at, job.finished_at)}</span>
-            {job.stats_json && (
+            <span className="font-semibold">{t("jobDetail.completedIn", { duration: formatDuration(job.started_at, job.finished_at) })}</span>
+            {isMetadataBatch && batchReport && (
              <span className="ml-2 text-success/80">
-                — {job.stats_json.scanned_files} scanned, {job.stats_json.indexed_files} indexed
-                {job.stats_json.removed_files > 0 && `, ${job.stats_json.removed_files} removed`}
-                {(job.stats_json.warnings ?? 0) > 0 && `, ${job.stats_json.warnings} warnings`}
-                {job.stats_json.errors > 0 && `, ${job.stats_json.errors} errors`}
-                {job.total_files != null && job.total_files > 0 && `, ${job.total_files} thumbnails`}
+                — {batchReport.auto_matched} {t("jobDetail.autoMatched").toLowerCase()}, {batchReport.already_linked} {t("jobDetail.alreadyLinked").toLowerCase()}, {batchReport.no_results} {t("jobDetail.noResults").toLowerCase()}, {batchReport.errors} {t("jobDetail.errors").toLowerCase()}
              </span>
            )}
-            {!job.stats_json && isThumbnailOnly && job.total_files != null && (
+            {isMetadataRefresh && refreshReport && (
              <span className="ml-2 text-success/80">
-                — {job.processed_files ?? job.total_files} thumbnails generated
+                — {refreshReport.refreshed} {t("jobDetail.refreshed").toLowerCase()}, {refreshReport.unchanged} {t("jobDetail.unchanged").toLowerCase()}, {refreshReport.errors} {t("jobDetail.errors").toLowerCase()}
+              </span>
+            )}
+            {!isMetadataBatch && !isMetadataRefresh && job.stats_json && (
+              <span className="ml-2 text-success/80">
+                — {job.stats_json.scanned_files} {t("jobDetail.scanned").toLowerCase()}, {job.stats_json.indexed_files} {t("jobDetail.indexed").toLowerCase()}
+                {job.stats_json.removed_files > 0 && `, ${job.stats_json.removed_files} ${t("jobDetail.removed").toLowerCase()}`}
+                {(job.stats_json.warnings ?? 0) > 0 && `, ${job.stats_json.warnings} ${t("jobDetail.warnings").toLowerCase()}`}
+                {job.stats_json.errors > 0 && `, ${job.stats_json.errors} ${t("jobDetail.errors").toLowerCase()}`}
+                {job.total_files != null && job.total_files > 0 && `, ${job.total_files} ${t("jobType.thumbnail_rebuild").toLowerCase()}`}
+              </span>
+            )}
+            {!isMetadataBatch && !isMetadataRefresh && !job.stats_json && isThumbnailOnly && job.total_files != null && (
+              <span className="ml-2 text-success/80">
+                — {job.processed_files ?? job.total_files} {t("jobDetail.generated").toLowerCase()}
              </span>
            )}
          </div>
@@ -204,9 +265,9 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
          </svg>
          <div className="text-sm text-destructive">
-            <span className="font-semibold">Job failed</span>
+            <span className="font-semibold">{t("jobDetail.jobFailed")}</span>
            {job.started_at && (
-              <span className="ml-2 text-destructive/80">after {formatDuration(job.started_at, job.finished_at)}</span>
+              <span className="ml-2 text-destructive/80">{t("jobDetail.failedAfter", { duration: formatDuration(job.started_at, job.finished_at) })}</span>
            )}
            {job.error_opt && (
              <p className="mt-1 text-destructive/70 font-mono text-xs break-all">{job.error_opt}</p>
@@ -222,9 +283,9 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M18.364 18.364A9 9 0 005.636 5.636m12.728 12.728A9 9 0 015.636 5.636m12.728 12.728L5.636 5.636" />
          </svg>
          <span className="text-sm text-muted-foreground">
-            <span className="font-semibold">Cancelled</span>
+            <span className="font-semibold">{t("jobDetail.cancelled")}</span>
            {job.started_at && (
-              <span className="ml-2">after {formatDuration(job.started_at, job.finished_at)}</span>
+              <span className="ml-2">{t("jobDetail.failedAfter", { duration: formatDuration(job.started_at, job.finished_at) })}</span>
            )}
          </span>
        </div>
@@ -234,7 +295,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
        {/* Overview Card */}
        <Card>
          <CardHeader>
-            <CardTitle>Overview</CardTitle>
+            <CardTitle>{t("jobDetail.overview")}</CardTitle>
            {typeInfo.description && (
              <CardDescription>{typeInfo.description}</CardDescription>
            )}
@@ -245,23 +306,23 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
              <code className="px-2 py-1 bg-muted rounded font-mono text-sm text-foreground">{job.id}</code>
            </div>
            <div className="flex items-center justify-between py-2 border-b border-border/60">
-              <span className="text-sm text-muted-foreground">Type</span>
+              <span className="text-sm text-muted-foreground">{t("jobsList.type")}</span>
              <div className="flex items-center gap-2">
                <JobTypeBadge type={job.type} />
                <span className="text-sm text-muted-foreground">{typeInfo.label}</span>
              </div>
            </div>
            <div className="flex items-center justify-between py-2 border-b border-border/60">
-              <span className="text-sm text-muted-foreground">Status</span>
+              <span className="text-sm text-muted-foreground">{t("jobsList.status")}</span>
              <StatusBadge status={job.status} />
            </div>
            <div className={`flex items-center justify-between py-2 ${(job.book_id || job.started_at) ? "border-b border-border/60" : ""}`}>
-              <span className="text-sm text-muted-foreground">Library</span>
-              <span className="text-sm text-foreground">{job.library_id || "All libraries"}</span>
+              <span className="text-sm text-muted-foreground">{t("jobDetail.library")}</span>
+              <span className="text-sm text-foreground">{job.library_id || t("jobDetail.allLibraries")}</span>
            </div>
            {job.book_id && (
              <div className={`flex items-center justify-between py-2 ${job.started_at ? "border-b border-border/60" : ""}`}>
-                <span className="text-sm text-muted-foreground">Book</span>
+                <span className="text-sm text-muted-foreground">{t("jobDetail.book")}</span>
                <Link
                  href={`/books/${job.book_id}`}
                  className="text-sm text-primary hover:text-primary/80 font-mono hover:underline"
@@ -272,7 +333,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            )}
            {job.started_at && (
              <div className="flex items-center justify-between py-2">
-                <span className="text-sm text-muted-foreground">Duration</span>
+                <span className="text-sm text-muted-foreground">{t("jobsList.duration")}</span>
                <span className="text-sm font-semibold text-foreground">
                  {formatDuration(job.started_at, job.finished_at)}
                </span>
@@ -284,7 +345,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
        {/* Timeline Card */}
        <Card>
          <CardHeader>
-            <CardTitle>Timeline</CardTitle>
+            <CardTitle>{t("jobDetail.timeline")}</CardTitle>
          </CardHeader>
          <CardContent>
            <div className="relative">
@@ -296,8 +357,8 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                <div className="flex items-start gap-4">
                  <div className="w-3.5 h-3.5 rounded-full mt-0.5 bg-muted border-2 border-border shrink-0 z-10" />
                  <div className="flex-1 min-w-0">
-                    <span className="text-sm font-medium text-foreground">Created</span>
-                    <p className="text-xs text-muted-foreground">{new Date(job.created_at).toLocaleString()}</p>
+                    <span className="text-sm font-medium text-foreground">{t("jobDetail.created")}</span>
+                    <p className="text-xs text-muted-foreground">{new Date(job.created_at).toLocaleString(locale)}</p>
                  </div>
                </div>

@@ -306,15 +367,15 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                  <div className="flex items-start gap-4">
                    <div className="w-3.5 h-3.5 rounded-full mt-0.5 bg-primary shrink-0 z-10" />
                    <div className="flex-1 min-w-0">
-                      <span className="text-sm font-medium text-foreground">Phase 1 — Discovery</span>
-                      <p className="text-xs text-muted-foreground">{new Date(job.started_at).toLocaleString()}</p>
+                      <span className="text-sm font-medium text-foreground">{t("jobDetail.phase1")}</span>
+                      <p className="text-xs text-muted-foreground">{new Date(job.started_at).toLocaleString(locale)}</p>
                      <p className="text-xs text-primary/80 font-medium mt-0.5">
-                        Duration: {formatDuration(job.started_at, job.phase2_started_at)}
+                        {t("jobDetail.duration", { duration: formatDuration(job.started_at, job.phase2_started_at) })}
                        {job.stats_json && (
                          <span className="text-muted-foreground font-normal ml-1">
-                            · {job.stats_json.scanned_files} scanned, {job.stats_json.indexed_files} indexed
-                            {job.stats_json.removed_files > 0 && `, ${job.stats_json.removed_files} removed`}
-                            {(job.stats_json.warnings ?? 0) > 0 && `, ${job.stats_json.warnings} warn`}
+                            · {job.stats_json.scanned_files} {t("jobDetail.scanned").toLowerCase()}, {job.stats_json.indexed_files} {t("jobDetail.indexed").toLowerCase()}
+                            {job.stats_json.removed_files > 0 && `, ${job.stats_json.removed_files} ${t("jobDetail.removed").toLowerCase()}`}
+                            {(job.stats_json.warnings ?? 0) > 0 && `, ${job.stats_json.warnings} ${t("jobDetail.warnings").toLowerCase()}`}
                          </span>
                        )}
                      </p>
@@ -329,12 +390,12 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                      job.generating_thumbnails_started_at || job.finished_at ? "bg-primary" : "bg-primary animate-pulse"
                    }`} />
                    <div className="flex-1 min-w-0">
-                      <span className="text-sm font-medium text-foreground">Phase 2a — Extracting pages</span>
-                      <p className="text-xs text-muted-foreground">{new Date(job.phase2_started_at).toLocaleString()}</p>
+                      <span className="text-sm font-medium text-foreground">{t("jobDetail.phase2a")}</span>
+                      <p className="text-xs text-muted-foreground">{new Date(job.phase2_started_at).toLocaleString(locale)}</p>
                      <p className="text-xs text-primary/80 font-medium mt-0.5">
-                        Duration: {formatDuration(job.phase2_started_at, job.generating_thumbnails_started_at ?? job.finished_at ?? null)}
+                        {t("jobDetail.duration", { duration: formatDuration(job.phase2_started_at, job.generating_thumbnails_started_at ?? job.finished_at ?? null) })}
                        {!job.generating_thumbnails_started_at && !job.finished_at && isExtractingPages && (
-                          <span className="text-muted-foreground font-normal ml-1">· in progress</span>
+                          <span className="text-muted-foreground font-normal ml-1">· {t("jobDetail.inProgress")}</span>
                        )}
                      </p>
                    </div>
@@ -349,26 +410,26 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                    }`} />
                    <div className="flex-1 min-w-0">
                      <span className="text-sm font-medium text-foreground">
-                        {isThumbnailOnly ? "Thumbnails" : "Phase 2b — Generating thumbnails"}
+                        {isThumbnailOnly ? t("jobType.thumbnail_rebuild") : t("jobDetail.phase2b")}
                      </span>
                      <p className="text-xs text-muted-foreground">
-                        {(job.generating_thumbnails_started_at ? new Date(job.generating_thumbnails_started_at) : job.phase2_started_at ? new Date(job.phase2_started_at) : null)?.toLocaleString()}
+                        {(job.generating_thumbnails_started_at ? new Date(job.generating_thumbnails_started_at) : job.phase2_started_at ? new Date(job.phase2_started_at) : null)?.toLocaleString(locale)}
                      </p>
                      {(job.generating_thumbnails_started_at || job.finished_at) && (
                        <p className="text-xs text-primary/80 font-medium mt-0.5">
-                          Duration: {formatDuration(
+                          {t("jobDetail.duration", { duration: formatDuration(
                            job.generating_thumbnails_started_at ?? job.phase2_started_at!,
                            job.finished_at ?? null
-                          )}
+                          ) })}
                          {job.total_files != null && job.total_files > 0 && (
                            <span className="text-muted-foreground font-normal ml-1">
-                              · {job.processed_files ?? job.total_files} thumbnails
+                              · {job.processed_files ?? job.total_files} {t("jobType.thumbnail_rebuild").toLowerCase()}
                            </span>
                          )}
                        </p>
                      )}
                      {!job.finished_at && isThumbnailPhase && (
-                        <span className="text-xs text-muted-foreground">in progress</span>
+                        <span className="text-xs text-muted-foreground">{t("jobDetail.inProgress")}</span>
                      )}
                    </div>
                  </div>
@@ -381,8 +442,8 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                      job.finished_at ? "bg-primary" : "bg-primary animate-pulse"
                    }`} />
                    <div className="flex-1 min-w-0">
-                      <span className="text-sm font-medium text-foreground">Started</span>
-                      <p className="text-xs text-muted-foreground">{new Date(job.started_at).toLocaleString()}</p>
+                      <span className="text-sm font-medium text-foreground">{t("jobDetail.started")}</span>
+                      <p className="text-xs text-muted-foreground">{new Date(job.started_at).toLocaleString(locale)}</p>
                    </div>
                  </div>
                )}
@@ -392,7 +453,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                  <div className="flex items-start gap-4">
                    <div className="w-3.5 h-3.5 rounded-full mt-0.5 bg-warning shrink-0 z-10" />
                    <div className="flex-1 min-w-0">
-                      <span className="text-sm font-medium text-foreground">Waiting to start…</span>
+                      <span className="text-sm font-medium text-foreground">{t("jobDetail.pendingStart")}</span>
                    </div>
                  </div>
                )}
@@ -405,9 +466,9 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                    }`} />
                    <div className="flex-1 min-w-0">
                      <span className="text-sm font-medium text-foreground">
-                        {isCompleted ? "Completed" : isFailed ? "Failed" : "Cancelled"}
+                        {isCompleted ? t("jobDetail.finished") : isFailed ? t("jobDetail.failed") : t("jobDetail.cancelled")}
                      </span>
-                      <p className="text-xs text-muted-foreground">{new Date(job.finished_at).toLocaleString()}</p>
+                      <p className="text-xs text-muted-foreground">{new Date(job.finished_at).toLocaleString(locale)}</p>
                    </div>
                  </div>
                )}
@@ -430,13 +491,13 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
                  <div className="grid grid-cols-3 gap-4">
                    <StatBox
                      value={job.processed_files ?? 0}
-                      label={isThumbnailOnly || isPhase2 ? "Generated" : "Processed"}
+                      label={isThumbnailOnly || isPhase2 ? t("jobDetail.generated") : t("jobDetail.processed")}
                      variant="primary"
                    />
-                    <StatBox value={job.total_files} label="Total" />
+                    <StatBox value={job.total_files} label={t("jobDetail.total")} />
                    <StatBox
                      value={Math.max(0, job.total_files - (job.processed_files ?? 0))}
-                      label="Remaining"
+                      label={t("jobDetail.remaining")}
                      variant={isCompleted ? "default" : "warning"}
                    />
                  </div>
@@ -444,7 +505,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
              )}
              {job.current_file && (
                <div className="mt-4 p-3 bg-muted/50 rounded-lg">
-                  <span className="text-xs text-muted-foreground uppercase tracking-wide">Current file</span>
+                  <span className="text-xs text-muted-foreground uppercase tracking-wide">{t("jobDetail.currentFile")}</span>
                  <code className="block mt-1 text-xs font-mono text-foreground break-all">{job.current_file}</code>
                </div>
              )}
@@ -453,10 +514,10 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
        )}

        {/* Index Statistics — index jobs only */}
-        {job.stats_json && !isThumbnailOnly && (
+        {job.stats_json && !isThumbnailOnly && !isMetadataBatch && !isMetadataRefresh && (
          <Card>
            <CardHeader>
-              <CardTitle>Index statistics</CardTitle>
+              <CardTitle>{t("jobDetail.indexStats")}</CardTitle>
              {job.started_at && (
                <CardDescription>
                  {formatDuration(job.started_at, job.finished_at)}
@@ -466,11 +527,11 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            </CardHeader>
            <CardContent>
              <div className="grid grid-cols-2 sm:grid-cols-5 gap-4">
-                <StatBox value={job.stats_json.scanned_files} label="Scanned" variant="success" />
-                <StatBox value={job.stats_json.indexed_files} label="Indexed" variant="primary" />
-                <StatBox value={job.stats_json.removed_files} label="Removed" variant="warning" />
-                <StatBox value={job.stats_json.warnings ?? 0} label="Warnings" variant={(job.stats_json.warnings ?? 0) > 0 ? "warning" : "default"} />
-                <StatBox value={job.stats_json.errors} label="Errors" variant={job.stats_json.errors > 0 ? "error" : "default"} />
+                <StatBox value={job.stats_json.scanned_files} label={t("jobDetail.scanned")} variant="success" />
+                <StatBox value={job.stats_json.indexed_files} label={t("jobDetail.indexed")} variant="primary" />
+                <StatBox value={job.stats_json.removed_files} label={t("jobDetail.removed")} variant="warning" />
+                <StatBox value={job.stats_json.warnings ?? 0} label={t("jobDetail.warnings")} variant={(job.stats_json.warnings ?? 0) > 0 ? "warning" : "default"} />
+                <StatBox value={job.stats_json.errors} label={t("jobDetail.errors")} variant={job.stats_json.errors > 0 ? "error" : "default"} />
              </div>
            </CardContent>
          </Card>
@@ -480,7 +541,7 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
        {isThumbnailOnly && isCompleted && job.total_files != null && (
          <Card>
            <CardHeader>
-              <CardTitle>Thumbnail statistics</CardTitle>
+              <CardTitle>{t("jobDetail.thumbnailStats")}</CardTitle>
              {job.started_at && (
                <CardDescription>
                  {formatDuration(job.started_at, job.finished_at)}
@@ -490,26 +551,244 @@ export default async function JobDetailPage({ params }: JobDetailPageProps) {
            </CardHeader>
            <CardContent>
              <div className="grid grid-cols-2 gap-4">
-                <StatBox value={job.processed_files ?? job.total_files} label="Generated" variant="success" />
-                <StatBox value={job.total_files} label="Total" />
+                <StatBox value={job.processed_files ?? job.total_files} label={t("jobDetail.generated")} variant="success" />
+                <StatBox value={job.total_files} label={t("jobDetail.total")} />
              </div>
            </CardContent>
          </Card>
        )}

+        {/* Metadata batch report */}
+        {isMetadataBatch && batchReport && (
+          <Card>
+            <CardHeader>
+              <CardTitle>{t("jobDetail.batchReport")}</CardTitle>
+              <CardDescription>{t("jobDetail.seriesAnalyzed", { count: String(batchReport.total_series) })}</CardDescription>
+            </CardHeader>
+            <CardContent>
+              <div className="grid grid-cols-2 sm:grid-cols-3 gap-4">
+                <StatBox value={batchReport.auto_matched} label={t("jobDetail.autoMatched")} variant="success" />
+                <StatBox value={batchReport.already_linked} label={t("jobDetail.alreadyLinked")} variant="primary" />
+                <StatBox value={batchReport.no_results} label={t("jobDetail.noResults")} />
+                <StatBox value={batchReport.too_many_results} label={t("jobDetail.tooManyResults")} variant="warning" />
+                <StatBox value={batchReport.low_confidence} label={t("jobDetail.lowConfidence")} variant="warning" />
+                <StatBox value={batchReport.errors} label={t("jobDetail.errors")} variant={batchReport.errors > 0 ? "error" : "default"} />
+              </div>
+            </CardContent>
+          </Card>
+        )}
+
+        {/* Metadata refresh report */}
+        {isMetadataRefresh && refreshReport && (
+          <Card>
+            <CardHeader>
+              <CardTitle>{t("jobDetail.refreshReport")}</CardTitle>
+              <CardDescription>{t("jobDetail.refreshReportDesc", { count: String(refreshReport.total_links) })}</CardDescription>
+            </CardHeader>
+            <CardContent>
+              <div className="grid grid-cols-2 sm:grid-cols-4 gap-4">
+                <StatBox value={refreshReport.refreshed} label={t("jobDetail.refreshed")} variant="success" />
+                <StatBox value={refreshReport.unchanged} label={t("jobDetail.unchanged")} />
+                <StatBox value={refreshReport.errors} label={t("jobDetail.errors")} variant={refreshReport.errors > 0 ? "error" : "default"} />
+                <StatBox value={refreshReport.total_links} label={t("jobDetail.total")} />
+              </div>
+            </CardContent>
+          </Card>
+        )}
+
+        {/* Metadata refresh changes detail */}
+        {isMetadataRefresh && refreshReport && refreshReport.changes.length > 0 && (
+          <Card className="lg:col-span-2">
+            <CardHeader>
+              <CardTitle>{t("jobDetail.refreshChanges")}</CardTitle>
+              <CardDescription>{t("jobDetail.refreshChangesDesc", { count: String(refreshReport.changes.length) })}</CardDescription>
+            </CardHeader>
+            <CardContent className="space-y-3 max-h-[600px] overflow-y-auto">
+              {refreshReport.changes.map((r, idx) => (
+                <div
+                  key={idx}
+                  className={`p-3 rounded-lg border ${
+                    r.status === "updated" ? "bg-success/10 border-success/20" :
+                    r.status === "error" ? "bg-destructive/10 border-destructive/20" :
+                    "bg-muted/50 border-border/60"
+                  }`}
+                >
+                  <div className="flex items-center justify-between gap-2">
+                    {job.library_id ? (
+                      <Link
+                        href={`/libraries/${job.library_id}/series/${encodeURIComponent(r.series_name)}`}
+                        className="font-medium text-sm text-primary hover:underline truncate"
+                      >
+                        {r.series_name}
+                      </Link>
+                    ) : (
+                      <span className="font-medium text-sm text-foreground truncate">{r.series_name}</span>
+                    )}
+                    <div className="flex items-center gap-2">
+                      <span className="text-[10px] text-muted-foreground">{r.provider}</span>
+                      <span className={`text-[10px] px-1.5 py-0.5 rounded-full font-medium whitespace-nowrap ${
+                        r.status === "updated" ? "bg-success/20 text-success" :
+                        r.status === "error" ? "bg-destructive/20 text-destructive" :
+                        "bg-muted text-muted-foreground"
+                      }`}>
+                        {r.status === "updated" ? t("jobDetail.refreshed") :
+                         r.status === "error" ? t("common.error") :
+                         t("jobDetail.unchanged")}
+                      </span>
+                    </div>
+                  </div>
+
+                  {r.error && (
+                    <p className="text-xs text-destructive/80 mt-1">{r.error}</p>
+                  )}
+
+                  {/* Series field changes */}
+                  {r.series_changes.length > 0 && (
+                    <div className="mt-2">
+                      <span className="text-[10px] uppercase tracking-wide text-muted-foreground font-semibold">{t("metadata.seriesLabel")}</span>
+                      <div className="mt-1 space-y-1">
+                        {r.series_changes.map((c, ci) => (
+                          <div key={ci} className="flex items-start gap-2 text-xs">
+                            <span className="font-medium text-foreground shrink-0 w-24">{t(`field.${c.field}` as never) || c.field}</span>
+                            <span className="text-muted-foreground line-through truncate max-w-[200px]" title={String(c.old ?? "—")}>
+                              {c.old != null ? (Array.isArray(c.old) ? (c.old as string[]).join(", ") : String(c.old)) : "—"}
+                            </span>
+                            <span className="text-success shrink-0">→</span>
+                            <span className="text-success truncate max-w-[200px]" title={String(c.new ?? "—")}>
+                              {c.new != null ? (Array.isArray(c.new) ? (c.new as string[]).join(", ") : String(c.new)) : "—"}
+                            </span>
+                          </div>
+                        ))}
+                      </div>
+                    </div>
+                  )}
+
+                  {/* Book field changes */}
+                  {r.book_changes.length > 0 && (
+                    <div className="mt-2">
+                      <span className="text-[10px] uppercase tracking-wide text-muted-foreground font-semibold">
+                        {t("metadata.booksLabel")} ({r.book_changes.length})
+                      </span>
+                      <div className="mt-1 space-y-2">
+                        {r.book_changes.map((b, bi) => (
+                          <div key={bi} className="pl-2 border-l-2 border-border/60">
+                            <Link
+                              href={`/books/${b.book_id}`}
+                              className="text-xs text-primary hover:underline font-medium"
+                            >
+                              {b.volume != null && <span className="text-muted-foreground mr-1">T.{b.volume}</span>}
+                              {b.title}
+                            </Link>
+                            <div className="mt-0.5 space-y-0.5">
+                              {b.changes.map((c, ci) => (
+                                <div key={ci} className="flex items-start gap-2 text-xs">
+                                  <span className="font-medium text-foreground shrink-0 w-24">{t(`field.${c.field}` as never) || c.field}</span>
+                                  <span className="text-muted-foreground line-through truncate max-w-[150px]" title={String(c.old ?? "—")}>
+                                    {c.old != null ? (Array.isArray(c.old) ? (c.old as string[]).join(", ") : String(c.old).substring(0, 60)) : "—"}
+                                  </span>
+                                  <span className="text-success shrink-0">→</span>
+                                  <span className="text-success truncate max-w-[150px]" title={String(c.new ?? "—")}>
+                                    {c.new != null ? (Array.isArray(c.new) ? (c.new as string[]).join(", ") : String(c.new).substring(0, 60)) : "—"}
+                                  </span>
+                                </div>
+                              ))}
+                            </div>
+                          </div>
+                        ))}
+                      </div>
+                    </div>
+                  )}
+                </div>
+              ))}
+            </CardContent>
+          </Card>
+        )}
+
+        {/* Metadata batch results */}
+        {isMetadataBatch && batchResults.length > 0 && (
+          <Card className="lg:col-span-2">
+            <CardHeader>
+              <CardTitle>{t("jobDetail.resultsBySeries")}</CardTitle>
+              <CardDescription>{t("jobDetail.seriesProcessed", { count: String(batchResults.length) })}</CardDescription>
+            </CardHeader>
+            <CardContent className="space-y-2 max-h-[600px] overflow-y-auto">
+              {batchResults.map((r) => (
+                <div
+                  key={r.id}
+                  className={`p-3 rounded-lg border ${
+                    r.status === "auto_matched" ? "bg-success/10 border-success/20" :
+                    r.status === "already_linked" ? "bg-primary/10 border-primary/20" :
+                    r.status === "error" ? "bg-destructive/10 border-destructive/20" :
+                    "bg-muted/50 border-border/60"
+                  }`}
+                >
+                  <div className="flex items-center justify-between gap-2">
+                    {job.library_id ? (
+                      <Link
+                        href={`/libraries/${job.library_id}/series/${encodeURIComponent(r.series_name)}`}
+                        className="font-medium text-sm text-primary hover:underline truncate"
+                      >
+                        {r.series_name}
+                      </Link>
+                    ) : (
+                      <span className="font-medium text-sm text-foreground truncate">{r.series_name}</span>
+                    )}
+                    <span className={`text-[10px] px-1.5 py-0.5 rounded-full font-medium whitespace-nowrap ${
+                      r.status === "auto_matched" ? "bg-success/20 text-success" :
+                      r.status === "already_linked" ? "bg-primary/20 text-primary" :
+                      r.status === "no_results" ? "bg-muted text-muted-foreground" :
+                      r.status === "too_many_results" ? "bg-amber-500/15 text-amber-600" :
+                      r.status === "low_confidence" ? "bg-amber-500/15 text-amber-600" :
+                      r.status === "error" ? "bg-destructive/20 text-destructive" :
+                      "bg-muted text-muted-foreground"
+                    }`}>
+                      {r.status === "auto_matched" ? t("jobDetail.autoMatched") :
+                       r.status === "already_linked" ? t("jobDetail.alreadyLinked") :
+                       r.status === "no_results" ? t("jobDetail.noResults") :
+                       r.status === "too_many_results" ? t("jobDetail.tooManyResults") :
+                       r.status === "low_confidence" ? t("jobDetail.lowConfidence") :
+                       r.status === "error" ? t("common.error") :
+                       r.status}
+                    </span>
+                  </div>
+                  <div className="flex items-center gap-3 mt-1 text-xs text-muted-foreground">
+                    {r.provider_used && (
+                      <span>{r.provider_used}{r.fallback_used ? ` ${t("metadata.fallbackUsed")}` : ""}</span>
+                    )}
+                    {r.candidates_count > 0 && (
+                      <span>{r.candidates_count} {t("jobDetail.candidates", { plural: r.candidates_count > 1 ? "s" : "" })}</span>
+                    )}
+                    {r.best_confidence != null && (
+                      <span>{Math.round(r.best_confidence * 100)}% {t("jobDetail.confidence")}</span>
+                    )}
+                  </div>
+                  {r.best_candidate_json && (
+                    <p className="text-xs text-muted-foreground mt-1">
+                      {t("jobDetail.match", { title: (r.best_candidate_json as { title?: string }).title || r.best_candidate_json.toString() })}
+                    </p>
+                  )}
+                  {r.error_message && (
+                    <p className="text-xs text-destructive/80 mt-1">{r.error_message}</p>
+                  )}
+                </div>
+              ))}
+            </CardContent>
+          </Card>
+        )}
+
        {/* File errors */}
        {errors.length > 0 && (
          <Card className="lg:col-span-2">
            <CardHeader>
-              <CardTitle>File errors ({errors.length})</CardTitle>
-              <CardDescription>Errors encountered while processing individual files</CardDescription>
+              <CardTitle>{t("jobDetail.fileErrors", { count: String(errors.length) })}</CardTitle>
+              <CardDescription>{t("jobDetail.fileErrorsDesc")}</CardDescription>
            </CardHeader>
            <CardContent className="space-y-2 max-h-80 overflow-y-auto">
              {errors.map((error) => (
                <div key={error.id} className="p-3 bg-destructive/10 rounded-lg border border-destructive/20">
                  <code className="block text-sm font-mono text-destructive mb-1">{error.file_path}</code>
                  <p className="text-sm text-destructive/80">{error.error_message}</p>
-                  <span className="text-xs text-muted-foreground">{new Date(error.created_at).toLocaleString()}</span>
+                  <span className="text-xs text-muted-foreground">{new Date(error.created_at).toLocaleString(locale)}</span>
                </div>
              ))}
            </CardContent>
--- a/apps/backoffice/app/jobs/page.tsx
+++ b/apps/backoffice/app/jobs/page.tsx
@@ -1,13 +1,15 @@
 import { revalidatePath } from "next/cache";
 import { redirect } from "next/navigation";
-import { listJobs, fetchLibraries, rebuildIndex, rebuildThumbnails, regenerateThumbnails, IndexJobDto, LibraryDto } from "../../lib/api";
+import { listJobs, fetchLibraries, rebuildIndex, rebuildThumbnails, regenerateThumbnails, startMetadataBatch, startMetadataRefresh, IndexJobDto, LibraryDto } from "../../lib/api";
 import { JobsList } from "../components/JobsList";
-import { Card, CardHeader, CardTitle, CardContent, Button, FormField, FormSelect, FormRow } from "../components/ui";
+import { Card, CardHeader, CardTitle, CardDescription, CardContent, FormField, FormSelect } from "../components/ui";
+import { getServerTranslations } from "../../lib/i18n/server";

 export const dynamic = "force-dynamic";

 export default async function JobsPage({ searchParams }: { searchParams: Promise<{ highlight?: string }> }) {
  const { highlight } = await searchParams;
+  const { t } = await getServerTranslations();
  const [jobs, libraries] = await Promise.all([
    listJobs().catch(() => [] as IndexJobDto[]),
    fetchLibraries().catch(() => [] as LibraryDto[])
@@ -31,6 +33,14 @@ export default async function JobsPage({ searchParams }: { searchParams: Promise
    redirect(`/jobs?highlight=${result.id}`);
  }

+  async function triggerRescan(formData: FormData) {
+    "use server";
+    const libraryId = formData.get("library_id") as string;
+    const result = await rebuildIndex(libraryId || undefined, false, true);
+    revalidatePath("/jobs");
+    redirect(`/jobs?highlight=${result.id}`);
+  }
+
  async function triggerThumbnailsRebuild(formData: FormData) {
    "use server";
    const libraryId = formData.get("library_id") as string;
@@ -47,6 +57,67 @@ export default async function JobsPage({ searchParams }: { searchParams: Promise
    redirect(`/jobs?highlight=${result.id}`);
  }

+  async function triggerMetadataBatch(formData: FormData) {
+    "use server";
+    const libraryId = formData.get("library_id") as string;
+    if (libraryId) {
+      let result;
+      try {
+        result = await startMetadataBatch(libraryId);
+      } catch {
+        // Library may have metadata disabled — ignore silently
+        return;
+      }
+      revalidatePath("/jobs");
+      redirect(`/jobs?highlight=${result.id}`);
+    } else {
+      // All libraries — skip those with metadata disabled
+      const allLibraries = await fetchLibraries().catch(() => [] as LibraryDto[]);
+      let lastId: string | undefined;
+      for (const lib of allLibraries) {
+        if (lib.metadata_provider === "none") continue;
+        try {
+          const result = await startMetadataBatch(lib.id);
+          if (result.status !== "already_running") lastId = result.id;
+        } catch {
+          // Library may have metadata disabled or other issue — skip
+        }
+      }
+      revalidatePath("/jobs");
+      redirect(lastId ? `/jobs?highlight=${lastId}` : "/jobs");
+    }
+  }
+
+  async function triggerMetadataRefresh(formData: FormData) {
+    "use server";
+    const libraryId = formData.get("library_id") as string;
+    if (libraryId) {
+      let result;
+      try {
+        result = await startMetadataRefresh(libraryId);
+      } catch {
+        return;
+      }
+      revalidatePath("/jobs");
+      redirect(`/jobs?highlight=${result.id}`);
+    } else {
+      // All libraries — skip those with metadata disabled
+      const allLibraries = await fetchLibraries().catch(() => [] as LibraryDto[]);
+      let lastId: string | undefined;
+      for (const lib of allLibraries) {
+        if (lib.metadata_provider === "none") continue;
+        try {
+          const result = await startMetadataRefresh(lib.id);
+          if (result.status !== "already_running") lastId = result.id;
+        } catch {
+          // Library may have metadata disabled or no approved links — skip
+        }
+      }
+      revalidatePath("/jobs");
+      redirect(lastId ? `/jobs?highlight=${lastId}` : "/jobs");
+    }
+  }
+
  return (
    <>
      <div className="mb-6">
@@ -54,52 +125,136 @@ export default async function JobsPage({ searchParams }: { searchParams: Promise
          <svg className="w-8 h-8 text-warning" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 10V3L4 14h7v7l9-11h-7z" />
          </svg>
-          Index Jobs
+          {t("jobs.title")}
        </h1>
      </div>

      <Card className="mb-6">
        <CardHeader>
-          <CardTitle>Queue New Job</CardTitle>
+          <CardTitle>{t("jobs.startJob")}</CardTitle>
+          <CardDescription>{t("jobs.startJobDescription")}</CardDescription>
        </CardHeader>
        <CardContent>
          <form>
-            <FormRow>
-              <FormField className="flex-1 max-w-xs">
+            <div className="mb-6">
+              <FormField className="max-w-xs">
                <FormSelect name="library_id" defaultValue="">
-                  <option value="">All libraries</option>
+                  <option value="">{t("jobs.allLibraries")}</option>
                  {libraries.map((lib) => (
                    <option key={lib.id} value={lib.id}>{lib.name}</option>
                  ))}
                </FormSelect>
              </FormField>
-              <div className="flex flex-wrap gap-2">
-                <Button type="submit" formAction={triggerRebuild}>
-                  <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+            </div>
+            <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+
+              {/* Indexation group */}
+              <div className="space-y-3">
+                <div className="flex items-center gap-2 text-sm font-semibold text-foreground">
+                  <svg className="w-4 h-4 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
                  </svg>
-                  Rebuild
-                </Button>
-                <Button type="submit" formAction={triggerFullRebuild} variant="warning">
-                  <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
-                  </svg>
-                  Full Rebuild
-                </Button>
-                <Button type="submit" formAction={triggerThumbnailsRebuild} variant="secondary">
-                  <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  {t("jobs.groupIndexation")}
+                </div>
+                <div className="space-y-2">
+                  <button type="submit" formAction={triggerRebuild}
+                    className="w-full text-left rounded-lg border border-input bg-background p-3 hover:bg-accent/50 transition-colors group cursor-pointer">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-primary shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+                      </svg>
+                      <span className="font-medium text-sm text-foreground">{t("jobs.rebuild")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.rebuildShort")}</p>
+                  </button>
+                  <button type="submit" formAction={triggerRescan}
+                    className="w-full text-left rounded-lg border border-input bg-background p-3 hover:bg-accent/50 transition-colors group cursor-pointer">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-primary shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
+                      </svg>
+                      <span className="font-medium text-sm text-foreground">{t("jobs.rescan")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.rescanShort")}</p>
+                  </button>
+                  <button type="submit" formAction={triggerFullRebuild}
+                    className="w-full text-left rounded-lg border border-destructive/30 bg-destructive/5 p-3 hover:bg-destructive/10 transition-colors group cursor-pointer">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-destructive shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
+                      </svg>
+                      <span className="font-medium text-sm text-destructive">{t("jobs.fullRebuild")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.fullRebuildShort")}</p>
+                  </button>
+                </div>
+              </div>
+
+              {/* Thumbnails group */}
+              <div className="space-y-3">
+                <div className="flex items-center gap-2 text-sm font-semibold text-foreground">
+                  <svg className="w-4 h-4 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
                  </svg>
-                  Generate thumbnails
-                </Button>
-                <Button type="submit" formAction={triggerThumbnailsRegenerate} variant="warning">
-                  <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
-                  </svg>
-                  Regenerate thumbnails
-                </Button>
+                  {t("jobs.groupThumbnails")}
+                </div>
+                <div className="space-y-2">
+                  <button type="submit" formAction={triggerThumbnailsRebuild}
+                    className="w-full text-left rounded-lg border border-input bg-background p-3 hover:bg-accent/50 transition-colors group cursor-pointer">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-primary shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6v6m0 0v6m0-6h6m-6 0H6" />
+                      </svg>
+                      <span className="font-medium text-sm text-foreground">{t("jobs.generateThumbnails")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.generateThumbnailsShort")}</p>
+                  </button>
+                  <button type="submit" formAction={triggerThumbnailsRegenerate}
+                    className="w-full text-left rounded-lg border border-warning/30 bg-warning/5 p-3 hover:bg-warning/10 transition-colors group cursor-pointer">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-warning shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
+                      </svg>
+                      <span className="font-medium text-sm text-warning">{t("jobs.regenerateThumbnails")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.regenerateThumbnailsShort")}</p>
+                  </button>
+                </div>
              </div>
-            </FormRow>
+
+              {/* Metadata group */}
+              <div className="space-y-3">
+                <div className="flex items-center gap-2 text-sm font-semibold text-foreground">
+                  <svg className="w-4 h-4 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z" />
+                  </svg>
+                  {t("jobs.groupMetadata")}
+                </div>
+                <div className="space-y-2">
+                  <button type="submit" formAction={triggerMetadataBatch}
+                    className="w-full text-left rounded-lg border border-input bg-background p-3 hover:bg-accent/50 transition-colors group cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed disabled:hover:bg-background">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-primary shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
+                      </svg>
+                      <span className="font-medium text-sm text-foreground">{t("jobs.batchMetadata")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.batchMetadataShort")}</p>
+                  </button>
+                  <button type="submit" formAction={triggerMetadataRefresh}
+                    className="w-full text-left rounded-lg border border-input bg-background p-3 hover:bg-accent/50 transition-colors group cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed disabled:hover:bg-background">
+                    <div className="flex items-center gap-2">
+                      <svg className="w-4 h-4 text-primary shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+                      </svg>
+                      <span className="font-medium text-sm text-foreground">{t("jobs.refreshMetadata")}</span>
+                    </div>
+                    <p className="text-xs text-muted-foreground mt-1 ml-6">{t("jobs.refreshMetadataShort")}</p>
+                  </button>
+                </div>
+              </div>
+
+            </div>
          </form>
        </CardContent>
      </Card>
--- a/apps/backoffice/app/layout.tsx
+++ b/apps/backoffice/app/layout.tsx
@@ -8,45 +8,53 @@ import { ThemeToggle } from "./theme-toggle";
 import { JobsIndicator } from "./components/JobsIndicator";
 import { NavIcon, Icon } from "./components/ui";
 import { MobileNav } from "./components/MobileNav";
+import { LocaleProvider } from "../lib/i18n/context";
+import { getServerLocale, getServerTranslations } from "../lib/i18n/server";
+import type { TranslationKey } from "../lib/i18n/fr";

 export const metadata: Metadata = {
  title: "StripStream Backoffice",
-  description: "Backoffice administration for StripStream Librarian"
+  description: "Administration backoffice pour StripStream Librarian"
 };

 type NavItem = {
-  href: "/" | "/books" | "/series" | "/libraries" | "/jobs" | "/tokens" | "/settings";
-  label: string;
-  icon: "dashboard" | "books" | "series" | "libraries" | "jobs" | "tokens" | "settings";
+  href: "/" | "/books" | "/series" | "/authors" | "/libraries" | "/jobs" | "/tokens" | "/settings";
+  labelKey: TranslationKey;
+  icon: "dashboard" | "books" | "series" | "authors" | "libraries" | "jobs" | "tokens" | "settings";
 };

 const navItems: NavItem[] = [
-  { href: "/", label: "Dashboard", icon: "dashboard" },
-  { href: "/books", label: "Books", icon: "books" },
-  { href: "/series", label: "Series", icon: "series" },
-  { href: "/libraries", label: "Libraries", icon: "libraries" },
-  { href: "/jobs", label: "Jobs", icon: "jobs" },
-  { href: "/tokens", label: "Tokens", icon: "tokens" },
+  { href: "/", labelKey: "nav.dashboard", icon: "dashboard" },
+  { href: "/books", labelKey: "nav.books", icon: "books" },
+  { href: "/series", labelKey: "nav.series", icon: "series" },
+  { href: "/authors", labelKey: "nav.authors", icon: "authors" },
+  { href: "/libraries", labelKey: "nav.libraries", icon: "libraries" },
+  { href: "/jobs", labelKey: "nav.jobs", icon: "jobs" },
+  { href: "/tokens", labelKey: "nav.tokens", icon: "tokens" },
 ];

-export default function RootLayout({ children }: { children: ReactNode }) {
+export default async function RootLayout({ children }: { children: ReactNode }) {
+  const locale = await getServerLocale();
+  const { t } = await getServerTranslations();
+
  return (
-    <html lang="en" suppressHydrationWarning>
+    <html lang={locale} suppressHydrationWarning>
      <body className="min-h-screen bg-background text-foreground font-sans antialiased bg-grain">
        <ThemeProvider>
+          <LocaleProvider initialLocale={locale}>
          {/* Header avec effet glassmorphism */}
          <header className="sticky top-0 z-50 w-full border-b border-border/40 bg-background/70 backdrop-blur-xl backdrop-saturate-150 supports-[backdrop-filter]:bg-background/60">
            <nav className="container mx-auto flex h-16 items-center justify-between px-4">
              {/* Brand */}
-              <Link 
-                href="/" 
+              <Link
+                href="/"
                className="flex items-center gap-3 hover:opacity-80 transition-opacity duration-200"
              >
-                <Image 
-                  src="/logo.png" 
-                  alt="StripStream" 
-                  width={36} 
-                  height={36} 
+                <Image
+                  src="/logo.png"
+                  alt="StripStream"
+                  width={36}
+                  height={36}
                  className="rounded-lg"
                />
                <div className="flex items-baseline gap-2">
@@ -54,7 +62,7 @@ export default function RootLayout({ children }: { children: ReactNode }) {
                    StripStream
                  </span>
                  <span className="text-sm text-muted-foreground font-medium hidden md:inline">
-                    backoffice
+                    {t("common.backoffice")}
                  </span>
                </div>
              </Link>
@@ -63,9 +71,9 @@ export default function RootLayout({ children }: { children: ReactNode }) {
              <div className="flex items-center gap-2">
                <div className="hidden md:flex items-center gap-1">
                  {navItems.map((item) => (
-                    <NavLink key={item.href} href={item.href} title={item.label}>
+                    <NavLink key={item.href} href={item.href} title={t(item.labelKey)}>
                      <NavIcon name={item.icon} />
-                      <span className="ml-2 hidden lg:inline">{item.label}</span>
+                      <span className="ml-2 hidden lg:inline">{t(item.labelKey)}</span>
                    </NavLink>
                  ))}
                </div>
@@ -76,12 +84,12 @@ export default function RootLayout({ children }: { children: ReactNode }) {
                  <Link
                    href="/settings"
                    className="hidden md:flex p-2 rounded-lg text-muted-foreground hover:text-foreground hover:bg-accent transition-colors"
-                    title="Settings"
+                    title={t("nav.settings")}
                  >
                    <Icon name="settings" size="md" />
                  </Link>
                  <ThemeToggle />
-                  <MobileNav navItems={navItems} />
+                  <MobileNav navItems={navItems.map(item => ({ ...item, label: t(item.labelKey) }))} />
                </div>
              </div>
            </nav>
@@ -91,6 +99,7 @@ export default function RootLayout({ children }: { children: ReactNode }) {
          <main className="container mx-auto px-4 sm:px-6 lg:px-8 py-8 pb-16">
            {children}
          </main>
+          </LocaleProvider>
        </ThemeProvider>
      </body>
    </html>
--- a/apps/backoffice/app/libraries/[id]/books/page.tsx
+++ b/apps/backoffice/app/libraries/[id]/books/page.tsx
@@ -3,6 +3,7 @@ import { BooksGrid, EmptyState } from "../../../components/BookCard";
 import { LibrarySubPageHeader } from "../../../components/LibrarySubPageHeader";
 import { OffsetPagination } from "../../../components/ui";
 import { notFound } from "next/navigation";
+import { getServerTranslations } from "../../../../lib/i18n/server";

 export const dynamic = "force-dynamic";

@@ -14,6 +15,7 @@ export default async function LibraryBooksPage({
  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
  const { id } = await params;
+  const { t } = await getServerTranslations();
  const searchParamsAwaited = await searchParams;
  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
  const series = typeof searchParamsAwaited.series === "string" ? searchParamsAwaited.series : undefined;
@@ -38,14 +40,14 @@ export default async function LibraryBooksPage({
    coverUrl: getBookCoverUrl(book.id)
  }));

-  const seriesDisplayName = series === "unclassified" ? "Unclassified" : series;
+  const seriesDisplayName = series === "unclassified" ? t("books.unclassified") : (series ?? "");
  const totalPages = Math.ceil(booksPage.total / limit);

  return (
    <div className="space-y-6">
      <LibrarySubPageHeader
        library={library}
-        title={series ? `Books in "${seriesDisplayName}"` : "All Books"}
+        title={series ? t("libraryBooks.booksOfSeries", { series: seriesDisplayName }) : t("libraryBooks.allBooks")}
        icon={
          <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" />
@@ -53,9 +55,9 @@ export default async function LibraryBooksPage({
        }
        iconColor="text-success"
        filterInfo={series ? {
-          label: `Showing books from series "${seriesDisplayName}"`,
+          label: t("libraryBooks.filterLabel", { series: seriesDisplayName }),
          clearHref: `/libraries/${id}/books`,
-          clearLabel: "View all books"
+          clearLabel: t("libraryBooks.viewAll")
        } : undefined}
      />

@@ -71,7 +73,7 @@ export default async function LibraryBooksPage({
          />
        </>
      ) : (
-        <EmptyState message={series ? `No books in series "${seriesDisplayName}"` : "No books in this library yet"} />
+        <EmptyState message={series ? t("libraryBooks.noBooksInSeries", { series: seriesDisplayName }) : t("libraryBooks.noBooks")} />
      )}
    </div>
  );
--- a/apps/backoffice/app/libraries/[id]/series/[name]/page.tsx
+++ b/apps/backoffice/app/libraries/[id]/series/[name]/page.tsx
@@ -1,12 +1,24 @@
-import { fetchLibraries, fetchBooks, fetchSeriesMetadata, getBookCoverUrl, BookDto, SeriesMetadataDto } from "../../../../../lib/api";
+import { fetchLibraries, fetchBooks, fetchSeriesMetadata, getBookCoverUrl, getMetadataLink, getMissingBooks, BookDto, SeriesMetadataDto, ExternalMetadataLinkDto, MissingBooksDto } from "../../../../../lib/api";
 import { BooksGrid, EmptyState } from "../../../../components/BookCard";
 import { MarkSeriesReadButton } from "../../../../components/MarkSeriesReadButton";
 import { MarkBookReadButton } from "../../../../components/MarkBookReadButton";
-import { EditSeriesForm } from "../../../../components/EditSeriesForm";
+import nextDynamic from "next/dynamic";
 import { OffsetPagination } from "../../../../components/ui";
+import { SafeHtml } from "../../../../components/SafeHtml";
 import Image from "next/image";
 import Link from "next/link";
+
+const EditSeriesForm = nextDynamic(
+  () => import("../../../../components/EditSeriesForm").then(m => m.EditSeriesForm)
+);
+const MetadataSearchModal = nextDynamic(
+  () => import("../../../../components/MetadataSearchModal").then(m => m.MetadataSearchModal)
+);
+const ProwlarrSearchModal = nextDynamic(
+  () => import("../../../../components/ProwlarrSearchModal").then(m => m.ProwlarrSearchModal)
+);
 import { notFound } from "next/navigation";
+import { getServerTranslations } from "../../../../../lib/i18n/server";

 export const dynamic = "force-dynamic";

@@ -18,13 +30,14 @@ export default async function SeriesDetailPage({
  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
  const { id, name } = await params;
+  const { t } = await getServerTranslations();
  const searchParamsAwaited = await searchParams;
  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 50;

  const seriesName = decodeURIComponent(name);

-  const [library, booksPage, seriesMeta] = await Promise.all([
+  const [library, booksPage, seriesMeta, metadataLinks] = await Promise.all([
    fetchLibraries().then((libs) => libs.find((l) => l.id === id)),
    fetchBooks(id, seriesName, page, limit).catch(() => ({
      items: [] as BookDto[],
@@ -33,8 +46,15 @@ export default async function SeriesDetailPage({
      limit,
    })),
    fetchSeriesMetadata(id, seriesName).catch(() => null as SeriesMetadataDto | null),
+    getMetadataLink(id, seriesName).catch(() => [] as ExternalMetadataLinkDto[]),
  ]);

+  const existingLink = metadataLinks.find((l) => l.status === "approved") ?? metadataLinks[0] ?? null;
+  let missingData: MissingBooksDto | null = null;
+  if (existingLink && existingLink.status === "approved") {
+    missingData = await getMissingBooks(existingLink.id).catch(() => null);
+  }
+
  if (!library) {
    notFound();
  }
@@ -46,7 +66,7 @@ export default async function SeriesDetailPage({

  const totalPages = Math.ceil(booksPage.total / limit);
  const booksReadCount = booksPage.items.filter((b) => b.reading_status === "read").length;
-  const displayName = seriesName === "unclassified" ? "Non classifié" : seriesName;
+  const displayName = seriesName === "unclassified" ? t("books.unclassified") : seriesName;

  // Use first book cover as series cover
  const coverBookId = booksPage.items[0]?.id;
@@ -59,7 +79,7 @@ export default async function SeriesDetailPage({
          href="/libraries"
          className="text-muted-foreground hover:text-primary transition-colors"
        >
-          Libraries
+          {t("nav.libraries")}
        </Link>
        <span className="text-muted-foreground">/</span>
        <Link
@@ -79,10 +99,10 @@ export default async function SeriesDetailPage({
            <div className="w-40 aspect-[2/3] relative rounded-xl overflow-hidden shadow-card border border-border">
              <Image
                src={getBookCoverUrl(coverBookId)}
-                alt={`Cover of ${displayName}`}
+                alt={t("books.coverOf", { name: displayName })}
                fill
                className="object-cover"
-                unoptimized
+                sizes="160px"
              />
            </div>
          </div>
@@ -91,12 +111,25 @@ export default async function SeriesDetailPage({
        <div className="flex-1 space-y-4">
          <h1 className="text-3xl font-bold text-foreground">{displayName}</h1>

-          {seriesMeta && seriesMeta.authors.length > 0 && (
-            <p className="text-base text-muted-foreground">{seriesMeta.authors.join(", ")}</p>
-          )}
+          <div className="flex flex-wrap items-center gap-3">
+            {seriesMeta && seriesMeta.authors.length > 0 && (
+              <p className="text-base text-muted-foreground">{seriesMeta.authors.join(", ")}</p>
+            )}
+            {seriesMeta?.status && (
+              <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium ${
+                seriesMeta.status === "ongoing" ? "bg-blue-500/15 text-blue-600" :
+                seriesMeta.status === "ended" ? "bg-green-500/15 text-green-600" :
+                seriesMeta.status === "hiatus" ? "bg-amber-500/15 text-amber-600" :
+                seriesMeta.status === "cancelled" ? "bg-red-500/15 text-red-600" :
+                "bg-muted text-muted-foreground"
+              }`}>
+                {t(`seriesStatus.${seriesMeta.status}` as any) || seriesMeta.status}
+              </span>
+            )}
+          </div>

          {seriesMeta?.description && (
-            <p className="text-sm text-muted-foreground leading-relaxed">{seriesMeta.description}</p>
+            <SafeHtml html={seriesMeta.description} className="text-sm text-muted-foreground leading-relaxed" />
          )}

          <div className="flex flex-wrap items-center gap-4 text-sm">
@@ -110,14 +143,14 @@ export default async function SeriesDetailPage({
            )}
            {((seriesMeta && seriesMeta.publishers.length > 0) || seriesMeta?.start_year) && <span className="w-px h-4 bg-border" />}
            <span className="text-muted-foreground">
-              <span className="font-semibold text-foreground">{booksPage.total}</span> livre{booksPage.total !== 1 ? "s" : ""}
+              <span className="font-semibold text-foreground">{booksPage.total}</span> {t("dashboard.books").toLowerCase()}
            </span>
            <span className="w-px h-4 bg-border" />
            <span className="text-muted-foreground">
-              <span className="font-semibold text-foreground">{booksReadCount}</span>/{booksPage.total} lu{booksPage.total !== 1 ? "s" : ""}
+              {t("series.readCount", { read: String(booksReadCount), total: String(booksPage.total), plural: booksPage.total !== 1 ? "s" : "" })}
            </span>

-            {/* Progress bar */}
+            {/* Reading progress bar */}
            <div className="flex items-center gap-2 flex-1 min-w-[120px] max-w-[200px]">
              <div className="flex-1 h-2 bg-muted rounded-full overflow-hidden">
                <div
@@ -126,6 +159,22 @@ export default async function SeriesDetailPage({
                />
              </div>
            </div>
+
+            {/* Collection progress bar (owned / expected) */}
+            {missingData && missingData.total_external > 0 && (
+              <>
+                <span className="w-px h-4 bg-border" />
+                <span className="text-muted-foreground">
+                  {booksPage.total}/{missingData.total_external} — {t("series.missingCount", { count: missingData.missing_count, plural: missingData.missing_count !== 1 ? "s" : "" })}
+                </span>
+                <div className="w-[150px] h-2 bg-muted rounded-full overflow-hidden">
+                  <div
+                    className="h-full bg-amber-500 rounded-full transition-all"
+                    style={{ width: `${Math.round((booksPage.total / missingData.total_external) * 100)}%` }}
+                  />
+                </div>
+              </>
+            )}
          </div>

          <div className="flex flex-wrap items-center gap-3">
@@ -143,6 +192,19 @@ export default async function SeriesDetailPage({
              currentBookLanguage={seriesMeta?.book_language ?? booksPage.items[0]?.language ?? null}
              currentDescription={seriesMeta?.description ?? null}
              currentStartYear={seriesMeta?.start_year ?? null}
+              currentTotalVolumes={seriesMeta?.total_volumes ?? null}
+              currentStatus={seriesMeta?.status ?? null}
+              currentLockedFields={seriesMeta?.locked_fields ?? {}}
+            />
+            <ProwlarrSearchModal
+              seriesName={seriesName}
+              missingBooks={missingData?.missing_books ?? null}
+            />
+            <MetadataSearchModal
+              libraryId={id}
+              seriesName={seriesName}
+              existingLink={existingLink}
+              initialMissing={missingData}
            />
          </div>
        </div>
@@ -160,7 +222,7 @@ export default async function SeriesDetailPage({
          />
        </>
      ) : (
-        <EmptyState message="Aucun livre dans cette série" />
+        <EmptyState message={t("librarySeries.noBooksInSeries")} />
      )}
    </div>
  );
--- a/apps/backoffice/app/libraries/[id]/series/page.tsx
+++ b/apps/backoffice/app/libraries/[id]/series/page.tsx
@@ -1,10 +1,12 @@
-import { fetchLibraries, fetchSeries, getBookCoverUrl, LibraryDto, SeriesDto, SeriesPageDto } from "../../../../lib/api";
+import { fetchLibraries, fetchSeries, fetchSeriesStatuses, getBookCoverUrl, LibraryDto, SeriesDto, SeriesPageDto } from "../../../../lib/api";
 import { OffsetPagination } from "../../../components/ui";
 import { MarkSeriesReadButton } from "../../../components/MarkSeriesReadButton";
+import { SeriesFilters } from "../../../components/SeriesFilters";
 import Image from "next/image";
 import Link from "next/link";
 import { notFound } from "next/navigation";
 import { LibrarySubPageHeader } from "../../../components/LibrarySubPageHeader";
+import { getServerTranslations } from "../../../../lib/i18n/server";

 export const dynamic = "force-dynamic";

@@ -16,13 +18,17 @@ export default async function LibrarySeriesPage({
  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
  const { id } = await params;
+  const { t } = await getServerTranslations();
  const searchParamsAwaited = await searchParams;
  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;
+  const seriesStatus = typeof searchParamsAwaited.series_status === "string" ? searchParamsAwaited.series_status : undefined;
+  const hasMissing = searchParamsAwaited.has_missing === "true";

-  const [library, seriesPage] = await Promise.all([
+  const [library, seriesPage, dbStatuses] = await Promise.all([
    fetchLibraries().then(libs => libs.find(l => l.id === id)),
-    fetchSeries(id, page, limit).catch(() => ({ items: [] as SeriesDto[], total: 0, page: 1, limit }) as SeriesPageDto)
+    fetchSeries(id, page, limit, seriesStatus, hasMissing).catch(() => ({ items: [] as SeriesDto[], total: 0, page: 1, limit }) as SeriesPageDto),
+    fetchSeriesStatuses().catch(() => [] as string[]),
  ]);

  if (!library) {
@@ -32,11 +38,23 @@ export default async function LibrarySeriesPage({
  const series = seriesPage.items;
  const totalPages = Math.ceil(seriesPage.total / limit);

+  const KNOWN_STATUSES: Record<string, string> = {
+    ongoing: t("seriesStatus.ongoing"),
+    ended: t("seriesStatus.ended"),
+    hiatus: t("seriesStatus.hiatus"),
+    cancelled: t("seriesStatus.cancelled"),
+    upcoming: t("seriesStatus.upcoming"),
+  };
+  const seriesStatusOptions = [
+    { value: "", label: t("seriesStatus.allStatuses") },
+    ...dbStatuses.map((s) => ({ value: s, label: KNOWN_STATUSES[s] || s })),
+  ];
+
  return (
    <div className="space-y-6">
      <LibrarySubPageHeader
        library={library}
-        title="Series"
+        title={t("series.title")}
        icon={
          <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
@@ -45,6 +63,13 @@ export default async function LibrarySeriesPage({
        iconColor="text-primary"
      />

+      <SeriesFilters
+        basePath={`/libraries/${id}/series`}
+        currentSeriesStatus={seriesStatus}
+        currentHasMissing={hasMissing}
+        seriesStatusOptions={seriesStatusOptions}
+      />
+
      {series.length > 0 ? (
        <>
          <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 gap-6">
@@ -58,19 +83,19 @@ export default async function LibrarySeriesPage({
                  <div className="aspect-[2/3] relative bg-muted/50">
                    <Image
                      src={getBookCoverUrl(s.first_book_id)}
-                      alt={`Cover of ${s.name}`}
+                      alt={t("books.coverOf", { name: s.name })}
                      fill
                      className="object-cover"
-                      unoptimized
+                      sizes="(max-width: 640px) 50vw, (max-width: 768px) 33vw, (max-width: 1024px) 25vw, 20vw"
                    />
                  </div>
                  <div className="p-3">
                    <h3 className="font-medium text-foreground truncate text-sm" title={s.name}>
-                      {s.name === "unclassified" ? "Unclassified" : s.name}
+                      {s.name === "unclassified" ? t("books.unclassified") : s.name}
                    </h3>
                    <div className="flex items-center justify-between mt-1">
                      <p className="text-xs text-muted-foreground">
-                        {s.books_read_count}/{s.book_count} lu{s.book_count !== 1 ? 's' : ''}
+                        {t("series.readCount", { read: String(s.books_read_count), total: String(s.book_count), plural: s.book_count !== 1 ? "s" : "" })}
                      </p>
                      <MarkSeriesReadButton
                        seriesName={s.name}
@@ -78,6 +103,24 @@ export default async function LibrarySeriesPage({
                        booksReadCount={s.books_read_count}
                      />
                    </div>
+                    <div className="flex items-center gap-1 mt-1.5 flex-wrap">
+                      {s.series_status && (
+                        <span className={`text-[10px] px-1.5 py-0.5 rounded-full font-medium ${
+                          s.series_status === "ongoing" ? "bg-blue-500/15 text-blue-600" :
+                          s.series_status === "ended" ? "bg-green-500/15 text-green-600" :
+                          s.series_status === "hiatus" ? "bg-amber-500/15 text-amber-600" :
+                          s.series_status === "cancelled" ? "bg-red-500/15 text-red-600" :
+                          "bg-muted text-muted-foreground"
+                        }`}>
+                          {KNOWN_STATUSES[s.series_status] || s.series_status}
+                        </span>
+                      )}
+                      {s.missing_count != null && s.missing_count > 0 && (
+                        <span className="text-[10px] px-1.5 py-0.5 rounded-full font-medium bg-yellow-500/15 text-yellow-600">
+                          {t("series.missingCount", { count: String(s.missing_count) })}
+                        </span>
+                      )}
+                    </div>
                  </div>
                </div>
              </Link>
@@ -93,7 +136,7 @@ export default async function LibrarySeriesPage({
        </>
      ) : (
        <div className="text-center py-12 text-muted-foreground">
-          <p>No series found in this library</p>
+          <p>{t("librarySeries.noSeries")}</p>
        </div>
      )}
    </div>
--- a/apps/backoffice/app/libraries/page.tsx
+++ b/apps/backoffice/app/libraries/page.tsx
@@ -1,22 +1,26 @@
 import { revalidatePath } from "next/cache";
+import Image from "next/image";
 import Link from "next/link";
-import { listFolders, createLibrary, deleteLibrary, fetchLibraries, fetchSeries, scanLibrary, LibraryDto, FolderItem } from "../../lib/api";
+import { listFolders, createLibrary, deleteLibrary, fetchLibraries, getBookCoverUrl, LibraryDto, FolderItem } from "../../lib/api";
+import type { TranslationKey } from "../../lib/i18n/fr";
+import { getServerTranslations } from "../../lib/i18n/server";
 import { LibraryActions } from "../components/LibraryActions";
 import { LibraryForm } from "../components/LibraryForm";
-import { 
+import { ProviderIcon } from "../components/ProviderIcon";
+import {
  Card, CardHeader, CardTitle, CardDescription, CardContent,
  Button, Badge
 } from "../components/ui";

 export const dynamic = "force-dynamic";

-function formatNextScan(nextScanAt: string | null): string {
+function formatNextScan(nextScanAt: string | null, imminentLabel: string): string {
  if (!nextScanAt) return "-";
  const date = new Date(nextScanAt);
  const now = new Date();
  const diff = date.getTime() - now.getTime();
-  
-  if (diff < 0) return "Due now";
+
+  if (diff < 0) return imminentLabel;
  if (diff < 60000) return "< 1 min";
  if (diff < 3600000) return `${Math.floor(diff / 60000)}m`;
  if (diff < 86400000) return `${Math.floor(diff / 3600000)}h`;
@@ -24,23 +28,18 @@ function formatNextScan(nextScanAt: string | null): string {
 }

 export default async function LibrariesPage() {
+  const { t } = await getServerTranslations();
  const [libraries, folders] = await Promise.all([
    fetchLibraries().catch(() => [] as LibraryDto[]),
    listFolders().catch(() => [] as FolderItem[])
  ]);

-  const seriesCounts = await Promise.all(
-    libraries.map(async (lib) => {
-      try {
-        const seriesPage = await fetchSeries(lib.id);
-        return { id: lib.id, count: seriesPage.items.length };
-      } catch {
-        return { id: lib.id, count: 0 };
-      }
-    })
+  const thumbnailMap = new Map(
+    libraries.map(lib => [
+      lib.id,
+      (lib.thumbnail_book_ids || []).map(bookId => getBookCoverUrl(bookId)),
+    ])
  );
-  
-  const seriesCountMap = new Map(seriesCounts.map(s => [s.id, s.count]));

  async function addLibrary(formData: FormData) {
    "use server";
@@ -59,22 +58,6 @@ export default async function LibrariesPage() {
    revalidatePath("/libraries");
  }

-  async function scanLibraryAction(formData: FormData) {
-    "use server";
-    const id = formData.get("id") as string;
-    await scanLibrary(id);
-    revalidatePath("/libraries");
-    revalidatePath("/jobs");
-  }
-
-  async function scanLibraryFullAction(formData: FormData) {
-    "use server";
-    const id = formData.get("id") as string;
-    await scanLibrary(id, true);
-    revalidatePath("/libraries");
-    revalidatePath("/jobs");
-  }
-
  return (
    <>
      <div className="mb-6">
@@ -82,15 +65,15 @@ export default async function LibrariesPage() {
          <svg className="w-8 h-8 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
          </svg>
-          Libraries
+          {t("libraries.title")}
        </h1>
      </div>
-      
+
      {/* Add Library Form */}
      <Card className="mb-6">
        <CardHeader>
-          <CardTitle>Add New Library</CardTitle>
-          <CardDescription>Create a new library from an existing folder</CardDescription>
+          <CardTitle>{t("libraries.addLibrary")}</CardTitle>
+          <CardDescription>{t("libraries.addLibraryDescription")}</CardDescription>
        </CardHeader>
        <CardContent>
          <LibraryForm initialFolders={folders} action={addLibrary} />
@@ -100,88 +83,139 @@ export default async function LibrariesPage() {
      {/* Libraries Grid */}
      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
        {libraries.map((lib) => {
-          const seriesCount = seriesCountMap.get(lib.id) || 0;
+          const thumbnails = thumbnailMap.get(lib.id) || [];
          return (
-            <Card key={lib.id} className="flex flex-col">
+            <Card key={lib.id} className="flex flex-col overflow-hidden">
+              {/* Thumbnail fan */}
+              {thumbnails.length > 0 ? (
+                <Link href={`/libraries/${lib.id}/series`} className="block relative h-48 overflow-hidden bg-muted/10">
+                  <Image
+                    src={thumbnails[0]}
+                    alt=""
+                    fill
+                    className="object-cover blur-xl scale-110 opacity-40"
+                    sizes="(max-width: 768px) 100vw, 33vw"
+                    loading="lazy"
+                  />
+                  <div className="absolute inset-0 flex items-end justify-center">
+                    {thumbnails.map((url, i) => {
+                      const count = thumbnails.length;
+                      const mid = (count - 1) / 2;
+                      const angle = (i - mid) * 12;
+                      const radius = 220;
+                      const rad = ((angle - 90) * Math.PI) / 180;
+                      const cx = Math.cos(rad) * radius;
+                      const cy = Math.sin(rad) * radius;
+                      return (
+                        <Image
+                          key={i}
+                          src={url}
+                          alt=""
+                          width={96}
+                          height={144}
+                          className="absolute object-cover shadow-lg"
+                          style={{
+                            transform: `translate(${cx}px, ${cy}px) rotate(${angle}deg)`,
+                            transformOrigin: 'bottom center',
+                            zIndex: count - Math.abs(Math.round(i - mid)),
+                            bottom: '-185px',
+                          }}
+                          sizes="96px"
+                          loading="lazy"
+                        />
+                      );
+                    })}
+                  </div>
+                </Link>
+              ) : (
+                <div className="h-8 bg-muted/10" />
+              )}
+
              <CardHeader className="pb-2">
                <div className="flex items-start justify-between">
                  <div>
                    <CardTitle className="text-lg">{lib.name}</CardTitle>
-                    {!lib.enabled && <Badge variant="muted" className="mt-1">Disabled</Badge>}
+                    {!lib.enabled && <Badge variant="muted" className="mt-1">{t("libraries.disabled")}</Badge>}
+                  </div>
+                  <div className="flex items-center gap-1">
+                    <LibraryActions
+                      libraryId={lib.id}
+                      monitorEnabled={lib.monitor_enabled}
+                      scanMode={lib.scan_mode}
+                      watcherEnabled={lib.watcher_enabled}
+                      metadataProvider={lib.metadata_provider}
+                      fallbackMetadataProvider={lib.fallback_metadata_provider}
+                      metadataRefreshMode={lib.metadata_refresh_mode}
+                    />
+                    <form>
+                      <input type="hidden" name="id" value={lib.id} />
+                      <Button type="submit" variant="ghost" size="sm" formAction={removeLibrary} className="text-muted-foreground hover:text-destructive">
+                        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
+                        </svg>
+                      </Button>
+                    </form>
                  </div>
-                  <LibraryActions
-                    libraryId={lib.id}
-                    monitorEnabled={lib.monitor_enabled}
-                    scanMode={lib.scan_mode}
-                    watcherEnabled={lib.watcher_enabled}
-                  />
                </div>
+                <code className="text-xs font-mono text-muted-foreground break-all">{lib.root_path}</code>
              </CardHeader>
              <CardContent className="flex-1 pt-0">
-                {/* Path */}
-                <code className="text-xs font-mono text-muted-foreground mb-4 break-all block">{lib.root_path}</code>
-
                {/* Stats */}
-                <div className="grid grid-cols-2 gap-3 mb-4">
-                  <Link 
-                    href={`/libraries/${lib.id}/books`} 
-                    className="text-center p-3 bg-muted/50 rounded-lg hover:bg-accent transition-colors duration-200"
+                <div className="grid grid-cols-2 gap-3 mb-3">
+                  <Link
+                    href={`/libraries/${lib.id}/books`}
+                    className="text-center p-2.5 bg-muted/50 rounded-lg hover:bg-accent transition-colors duration-200"
                  >
                    <span className="block text-2xl font-bold text-primary">{lib.book_count}</span>
-                    <span className="text-xs text-muted-foreground">Books</span>
+                    <span className="text-xs text-muted-foreground">{t("libraries.books")}</span>
                  </Link>
-                  <Link 
-                    href={`/libraries/${lib.id}/series`} 
-                    className="text-center p-3 bg-muted/50 rounded-lg hover:bg-accent transition-colors duration-200"
+                  <Link
+                    href={`/libraries/${lib.id}/series`}
+                    className="text-center p-2.5 bg-muted/50 rounded-lg hover:bg-accent transition-colors duration-200"
                  >
-                    <span className="block text-2xl font-bold text-foreground">{seriesCount}</span>
-                    <span className="text-xs text-muted-foreground">Series</span>
+                    <span className="block text-2xl font-bold text-foreground">{lib.series_count}</span>
+                    <span className="text-xs text-muted-foreground">{t("libraries.series")}</span>
                  </Link>
                </div>

-                {/* Status */}
-                <div className="flex items-center gap-3 mb-4 text-sm">
-                  <span className={`flex items-center gap-1 ${lib.monitor_enabled ? 'text-success' : 'text-muted-foreground'}`}>
-                    {lib.monitor_enabled ? '●' : '○'} {lib.monitor_enabled ? 'Auto' : 'Manual'}
+                {/* Configuration tags */}
+                <div className="flex flex-wrap gap-1.5">
+                  <span className={`inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium ${
+                    lib.monitor_enabled
+                      ? 'bg-success/10 text-success'
+                      : 'bg-muted/50 text-muted-foreground'
+                  }`}>
+                    <span className="text-[9px]">{lib.monitor_enabled ? '●' : '○'}</span>
+                    {t("libraries.scanLabel", { mode: t(`monitoring.${lib.scan_mode}` as TranslationKey) })}
                  </span>
-                  {lib.watcher_enabled && (
-                    <span className="text-warning" title="File watcher active">⚡</span>
-                  )}
-                  {lib.monitor_enabled && lib.next_scan_at && (
-                    <span className="text-xs text-muted-foreground ml-auto">
-                      Next: {formatNextScan(lib.next_scan_at)}
+
+                  <span className={`inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium ${
+                    lib.watcher_enabled
+                      ? 'bg-warning/10 text-warning'
+                      : 'bg-muted/50 text-muted-foreground'
+                  }`}>
+                    <span>{lib.watcher_enabled ? '⚡' : '○'}</span>
+                    <span>{t("libraries.watcherLabel")}</span>
+                  </span>
+
+                  {lib.metadata_provider && lib.metadata_provider !== "none" && (
+                    <span className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium bg-primary/10 text-primary">
+                      <ProviderIcon provider={lib.metadata_provider} size={11} />
+                      {lib.metadata_provider.replace('_', ' ')}
                    </span>
                  )}
-                </div>

-                {/* Actions */}
-                <div className="flex items-center gap-2">
-                  <form className="flex-1">
-                    <input type="hidden" name="id" value={lib.id} />
-                    <Button type="submit" variant="default" size="sm" className="w-full" formAction={scanLibraryAction}>
-                      <svg className="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
-                      </svg>
-                      Index
-                    </Button>
-                  </form>
-                  <form className="flex-1">
-                    <input type="hidden" name="id" value={lib.id} />
-                    <Button type="submit" variant="secondary" size="sm" className="w-full" formAction={scanLibraryFullAction}>
-                      <svg className="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
-                      </svg>
-                      Full
-                    </Button>
-                  </form>
-                  <form>
-                    <input type="hidden" name="id" value={lib.id} />
-                    <Button type="submit" variant="destructive" size="sm" formAction={removeLibrary}>
-                      <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
-                      </svg>
-                    </Button>
-                  </form>
+                  {lib.metadata_refresh_mode !== "manual" && (
+                    <span className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium bg-muted/50 text-muted-foreground">
+                      {t("libraries.metaRefreshLabel", { mode: t(`monitoring.${lib.metadata_refresh_mode}` as TranslationKey) })}
+                    </span>
+                  )}
+
+                  {lib.monitor_enabled && lib.next_scan_at && (
+                    <span className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium bg-muted/50 text-muted-foreground">
+                      {t("libraries.nextScan", { time: formatNextScan(lib.next_scan_at, t("libraries.imminent")) })}
+                    </span>
+                  )}
                </div>
              </CardContent>
            </Card>
--- a/apps/backoffice/app/page.tsx
+++ b/apps/backoffice/app/page.tsx
@@ -1,7 +1,12 @@
 import React from "react";
-import { fetchStats, StatsResponse } from "../lib/api";
+import { fetchStats, StatsResponse, getBookCoverUrl } from "../lib/api";
 import { Card, CardContent, CardHeader, CardTitle } from "./components/ui";
+import { RcDonutChart, RcBarChart, RcAreaChart, RcStackedBar, RcHorizontalBar, RcMultiLineChart } from "./components/DashboardCharts";
+import { PeriodToggle } from "./components/PeriodToggle";
+import Image from "next/image";
 import Link from "next/link";
+import { getServerTranslations } from "../lib/i18n/server";
+import type { TranslateFunction } from "../lib/i18n/dictionaries";

 export const dynamic = "force-dynamic";

@@ -13,95 +18,36 @@ function formatBytes(bytes: number): string {
  return `${(bytes / Math.pow(k, i)).toFixed(1)} ${sizes[i]}`;
 }

-function formatNumber(n: number): string {
-  return n.toLocaleString("fr-FR");
+function formatNumber(n: number, locale: string): string {
+  return n.toLocaleString(locale === "fr" ? "fr-FR" : "en-US");
 }

-// Donut chart via SVG
-function DonutChart({ data, colors }: { data: { label: string; value: number; color: string }[]; colors?: string[] }) {
-  const total = data.reduce((sum, d) => sum + d.value, 0);
-  if (total === 0) return <p className="text-muted-foreground text-sm text-center py-8">No data</p>;
-
-  const radius = 40;
-  const circumference = 2 * Math.PI * radius;
-  let offset = 0;
-
-  return (
-    <div className="flex items-center gap-6">
-      <svg viewBox="0 0 100 100" className="w-32 h-32 shrink-0">
-        {data.map((d, i) => {
-          const pct = d.value / total;
-          const dashLength = pct * circumference;
-          const currentOffset = offset;
-          offset += dashLength;
-          return (
-            <circle
-              key={i}
-              cx="50"
-              cy="50"
-              r={radius}
-              fill="none"
-              stroke={d.color}
-              strokeWidth="16"
-              strokeDasharray={`${dashLength} ${circumference - dashLength}`}
-              strokeDashoffset={-currentOffset}
-              transform="rotate(-90 50 50)"
-              className="transition-all duration-500"
-            />
-          );
-        })}
-        <text x="50" y="50" textAnchor="middle" dominantBaseline="central" className="fill-foreground text-[10px] font-bold">
-          {formatNumber(total)}
-        </text>
-      </svg>
-      <div className="flex flex-col gap-1.5 min-w-0">
-        {data.map((d, i) => (
-          <div key={i} className="flex items-center gap-2 text-sm">
-            <span className="w-3 h-3 rounded-full shrink-0" style={{ backgroundColor: d.color }} />
-            <span className="text-muted-foreground truncate">{d.label}</span>
-            <span className="font-medium text-foreground ml-auto">{d.value}</span>
-          </div>
-        ))}
-      </div>
-    </div>
-  );
+function formatChartLabel(raw: string, period: "day" | "week" | "month", locale: string): string {
+  const loc = locale === "fr" ? "fr-FR" : "en-US";
+  if (period === "month") {
+    // raw = "YYYY-MM"
+    const [y, m] = raw.split("-");
+    const d = new Date(Number(y), Number(m) - 1, 1);
+    return d.toLocaleDateString(loc, { month: "short" });
+  }
+  if (period === "week") {
+    // raw = "YYYY-MM-DD" (Monday of the week)
+    const d = new Date(raw + "T00:00:00");
+    return d.toLocaleDateString(loc, { day: "numeric", month: "short" });
+  }
+  // day: raw = "YYYY-MM-DD"
+  const d = new Date(raw + "T00:00:00");
+  return d.toLocaleDateString(loc, { weekday: "short", day: "numeric" });
 }

-// Bar chart via pure CSS
-function BarChart({ data, color = "var(--color-primary)" }: { data: { label: string; value: number }[]; color?: string }) {
-  const max = Math.max(...data.map((d) => d.value), 1);
-  if (data.length === 0) return <p className="text-muted-foreground text-sm text-center py-8">No data</p>;
-
-  return (
-    <div className="flex items-end gap-1.5 h-40">
-      {data.map((d, i) => (
-        <div key={i} className="flex-1 flex flex-col items-center gap-1 min-w-0">
-          <span className="text-[10px] text-muted-foreground font-medium">{d.value || ""}</span>
-          <div
-            className="w-full rounded-t-sm transition-all duration-500 min-h-[2px]"
-            style={{
-              height: `${(d.value / max) * 100}%`,
-              backgroundColor: color,
-              opacity: d.value === 0 ? 0.2 : 1,
-            }}
-          />
-          <span className="text-[10px] text-muted-foreground truncate w-full text-center">
-            {d.label}
-          </span>
-        </div>
-      ))}
-    </div>
-  );
-}
-
-// Horizontal progress bar for library breakdown
+// Horizontal progress bar for metadata quality (stays server-rendered, no recharts needed)
 function HorizontalBar({ label, value, max, subLabel, color = "var(--color-primary)" }: { label: string; value: number; max: number; subLabel?: string; color?: string }) {
  const pct = max > 0 ? (value / max) * 100 : 0;
  return (
    <div className="space-y-1">
      <div className="flex justify-between text-sm">
        <span className="font-medium text-foreground truncate">{label}</span>
-        <span className="text-muted-foreground shrink-0 ml-2">{subLabel || formatNumber(value)}</span>
+        <span className="text-muted-foreground shrink-0 ml-2">{subLabel || value}</span>
      </div>
      <div className="h-2 bg-muted rounded-full overflow-hidden">
        <div
@@ -113,10 +59,19 @@ function HorizontalBar({ label, value, max, subLabel, color = "var(--color-prima
  );
 }

-export default async function DashboardPage() {
+export default async function DashboardPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
+}) {
+  const searchParamsAwaited = await searchParams;
+  const rawPeriod = searchParamsAwaited.period;
+  const period = rawPeriod === "day" ? "day" as const : rawPeriod === "week" ? "week" as const : "month" as const;
+  const { t, locale } = await getServerTranslations();
+
  let stats: StatsResponse | null = null;
  try {
-    stats = await fetchStats();
+    stats = await fetchStats(period);
  } catch (e) {
    console.error("Failed to fetch stats:", e);
  }
@@ -126,14 +81,14 @@ export default async function DashboardPage() {
      <div className="max-w-5xl mx-auto">
        <div className="text-center mb-12">
          <h1 className="text-4xl font-bold tracking-tight mb-4 text-foreground">StripStream Backoffice</h1>
-          <p className="text-lg text-muted-foreground">Unable to load statistics. Make sure the API is running.</p>
+          <p className="text-lg text-muted-foreground">{t("dashboard.loadError")}</p>
        </div>
-        <QuickLinks />
+        <QuickLinks t={t} />
      </div>
    );
  }

-  const { overview, reading_status, by_format, by_language, by_library, top_series, additions_over_time } = stats;
+  const { overview, reading_status, currently_reading = [], recently_read = [], reading_over_time = [], by_format, by_library, top_series, additions_over_time, jobs_over_time = [], metadata } = stats;

  const readingColors = ["hsl(220 13% 70%)", "hsl(45 93% 47%)", "hsl(142 60% 45%)"];
  const formatColors = [
@@ -142,7 +97,7 @@ export default async function DashboardPage() {
    "hsl(170 60% 45%)", "hsl(220 60% 50%)",
  ];

-  const maxLibBooks = Math.max(...by_library.map((l) => l.book_count), 1);
+  const noDataLabel = t("common.noData");

  return (
    <div className="max-w-7xl mx-auto space-y-6">
@@ -152,36 +107,128 @@ export default async function DashboardPage() {
          <svg className="w-8 h-8 text-primary" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
          </svg>
-          Dashboard
+          {t("dashboard.title")}
        </h1>
        <p className="text-muted-foreground mt-2 max-w-2xl">
-          Overview of your comic collection. Manage your libraries, track your reading progress, and explore your books and series.
+          {t("dashboard.subtitle")}
        </p>
      </div>

      {/* Overview stat cards */}
      <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-6 gap-4">
-        <StatCard icon="book" label="Books" value={formatNumber(overview.total_books)} color="success" />
-        <StatCard icon="series" label="Series" value={formatNumber(overview.total_series)} color="primary" />
-        <StatCard icon="library" label="Libraries" value={formatNumber(overview.total_libraries)} color="warning" />
-        <StatCard icon="pages" label="Pages" value={formatNumber(overview.total_pages)} color="primary" />
-        <StatCard icon="author" label="Authors" value={formatNumber(overview.total_authors)} color="success" />
-        <StatCard icon="size" label="Total Size" value={formatBytes(overview.total_size_bytes)} color="warning" />
+        <StatCard icon="book" label={t("dashboard.books")} value={formatNumber(overview.total_books, locale)} color="success" />
+        <StatCard icon="series" label={t("dashboard.series")} value={formatNumber(overview.total_series, locale)} color="primary" />
+        <StatCard icon="library" label={t("dashboard.libraries")} value={formatNumber(overview.total_libraries, locale)} color="warning" />
+        <StatCard icon="pages" label={t("dashboard.pages")} value={formatNumber(overview.total_pages, locale)} color="primary" />
+        <StatCard icon="author" label={t("dashboard.authors")} value={formatNumber(overview.total_authors, locale)} color="success" />
+        <StatCard icon="size" label={t("dashboard.totalSize")} value={formatBytes(overview.total_size_bytes)} color="warning" />
      </div>

+      {/* Currently reading + Recently read */}
+      {(currently_reading.length > 0 || recently_read.length > 0) && (
+        <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+          {/* Currently reading */}
+          <Card hover={false}>
+            <CardHeader>
+              <CardTitle className="text-base">{t("dashboard.currentlyReading")}</CardTitle>
+            </CardHeader>
+            <CardContent>
+              {currently_reading.length === 0 ? (
+                <p className="text-muted-foreground text-sm text-center py-4">{t("dashboard.noCurrentlyReading")}</p>
+              ) : (
+                <div className="space-y-3 max-h-[216px] overflow-y-auto pr-1">
+                  {currently_reading.slice(0, 8).map((book) => {
+                    const pct = book.page_count > 0 ? Math.round((book.current_page / book.page_count) * 100) : 0;
+                    return (
+                      <Link key={book.book_id} href={`/books/${book.book_id}` as any} className="flex items-center gap-3 group">
+                        <Image
+                          src={getBookCoverUrl(book.book_id)}
+                          alt={book.title}
+                          width={40}
+                          height={56}
+                          className="w-10 h-14 object-cover rounded shadow-sm shrink-0 bg-muted"
+                        />
+                        <div className="min-w-0 flex-1">
+                          <p className="text-sm font-medium text-foreground truncate group-hover:text-primary transition-colors">{book.title}</p>
+                          {book.series && <p className="text-xs text-muted-foreground truncate">{book.series}</p>}
+                          <div className="mt-1.5 flex items-center gap-2">
+                            <div className="h-1.5 flex-1 bg-muted rounded-full overflow-hidden">
+                              <div className="h-full bg-warning rounded-full transition-all" style={{ width: `${pct}%` }} />
+                            </div>
+                            <span className="text-[10px] text-muted-foreground shrink-0">{pct}%</span>
+                          </div>
+                          <p className="text-[10px] text-muted-foreground mt-0.5">{t("dashboard.pageProgress", { current: book.current_page, total: book.page_count })}</p>
+                        </div>
+                      </Link>
+                    );
+                  })}
+                </div>
+              )}
+            </CardContent>
+          </Card>
+
+          {/* Recently read */}
+          <Card hover={false}>
+            <CardHeader>
+              <CardTitle className="text-base">{t("dashboard.recentlyRead")}</CardTitle>
+            </CardHeader>
+            <CardContent>
+              {recently_read.length === 0 ? (
+                <p className="text-muted-foreground text-sm text-center py-4">{t("dashboard.noRecentlyRead")}</p>
+              ) : (
+                <div className="space-y-3 max-h-[216px] overflow-y-auto pr-1">
+                  {recently_read.map((book) => (
+                    <Link key={book.book_id} href={`/books/${book.book_id}` as any} className="flex items-center gap-3 group">
+                      <Image
+                        src={getBookCoverUrl(book.book_id)}
+                        alt={book.title}
+                        width={40}
+                        height={56}
+                        className="w-10 h-14 object-cover rounded shadow-sm shrink-0 bg-muted"
+                      />
+                      <div className="min-w-0 flex-1">
+                        <p className="text-sm font-medium text-foreground truncate group-hover:text-primary transition-colors">{book.title}</p>
+                        {book.series && <p className="text-xs text-muted-foreground truncate">{book.series}</p>}
+                      </div>
+                      <span className="text-xs text-muted-foreground shrink-0">{book.last_read_at}</span>
+                    </Link>
+                  ))}
+                </div>
+              )}
+            </CardContent>
+          </Card>
+        </div>
+      )}
+
+      {/* Reading activity line chart */}
+      <Card hover={false}>
+        <CardHeader className="flex flex-row items-center justify-between space-y-0">
+          <CardTitle className="text-base">{t("dashboard.readingActivity")}</CardTitle>
+          <PeriodToggle labels={{ day: t("dashboard.periodDay"), week: t("dashboard.periodWeek"), month: t("dashboard.periodMonth") }} />
+        </CardHeader>
+        <CardContent>
+          <RcAreaChart
+            noDataLabel={noDataLabel}
+            data={reading_over_time.map((m) => ({ label: formatChartLabel(m.month, period, locale), value: m.books_read }))}
+            color="hsl(142 60% 45%)"
+          />
+        </CardContent>
+      </Card>
+
      {/* Charts row */}
      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
        {/* Reading status donut */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">Reading Status</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.readingStatus")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <DonutChart
+            <RcDonutChart
+              noDataLabel={noDataLabel}
              data={[
-                { label: "Unread", value: reading_status.unread, color: readingColors[0] },
-                { label: "In Progress", value: reading_status.reading, color: readingColors[1] },
-                { label: "Read", value: reading_status.read, color: readingColors[2] },
+                { name: t("status.unread"), value: reading_status.unread, color: readingColors[0] },
+                { name: t("status.reading"), value: reading_status.reading, color: readingColors[1] },
+                { name: t("status.read"), value: reading_status.read, color: readingColors[2] },
              ]}
            />
          </CardContent>
@@ -190,12 +237,13 @@ export default async function DashboardPage() {
        {/* By format donut */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">By Format</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.byFormat")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <DonutChart
+            <RcDonutChart
+              noDataLabel={noDataLabel}
              data={by_format.slice(0, 6).map((f, i) => ({
-                label: (f.format || "Unknown").toUpperCase(),
+                name: (f.format || t("dashboard.unknown")).toUpperCase(),
                value: f.count,
                color: formatColors[i % formatColors.length],
              }))}
@@ -206,12 +254,13 @@ export default async function DashboardPage() {
        {/* By library donut */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">By Library</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.byLibrary")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <DonutChart
+            <RcDonutChart
+              noDataLabel={noDataLabel}
              data={by_library.slice(0, 6).map((l, i) => ({
-                label: l.library_name,
+                name: l.library_name,
                value: l.book_count,
                color: formatColors[i % formatColors.length],
              }))}
@@ -220,94 +269,156 @@ export default async function DashboardPage() {
        </Card>
      </div>

-      {/* Second row */}
-      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
-        {/* Monthly additions bar chart */}
+      {/* Metadata row */}
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+        {/* Series metadata coverage donut */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">Books Added (Last 12 Months)</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.metadataCoverage")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <BarChart
-              data={additions_over_time.map((m) => ({
-                label: m.month.slice(5), // "MM" from "YYYY-MM"
-                value: m.books_added,
-              }))}
-              color="hsl(198 78% 37%)"
+            <RcDonutChart
+              noDataLabel={noDataLabel}
+              data={[
+                { name: t("dashboard.seriesLinked"), value: metadata.series_linked, color: "hsl(142 60% 45%)" },
+                { name: t("dashboard.seriesUnlinked"), value: metadata.series_unlinked, color: "hsl(220 13% 70%)" },
+              ]}
            />
          </CardContent>
        </Card>

-        {/* Top series */}
+        {/* By provider donut */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">Top Series</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.byProvider")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <div className="space-y-3">
-              {top_series.slice(0, 8).map((s, i) => (
-                <HorizontalBar
-                  key={i}
-                  label={s.series}
-                  value={s.book_count}
-                  max={top_series[0]?.book_count || 1}
-                  subLabel={`${s.read_count}/${s.book_count} read`}
-                  color="hsl(142 60% 45%)"
-                />
-              ))}
-              {top_series.length === 0 && (
-                <p className="text-muted-foreground text-sm text-center py-4">No series yet</p>
-              )}
+            <RcDonutChart
+              noDataLabel={noDataLabel}
+              data={metadata.by_provider.map((p, i) => ({
+                name: p.provider.replace(/_/g, " ").replace(/\b\w/g, (c) => c.toUpperCase()),
+                value: p.count,
+                color: formatColors[i % formatColors.length],
+              }))}
+            />
+          </CardContent>
+        </Card>
+
+        {/* Book metadata quality */}
+        <Card hover={false}>
+          <CardHeader>
+            <CardTitle className="text-base">{t("dashboard.bookMetadata")}</CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-4">
+              <HorizontalBar
+                label={t("dashboard.withSummary")}
+                value={metadata.books_with_summary}
+                max={overview.total_books}
+                subLabel={overview.total_books > 0 ? `${Math.round((metadata.books_with_summary / overview.total_books) * 100)}%` : "0%"}
+                color="hsl(198 78% 37%)"
+              />
+              <HorizontalBar
+                label={t("dashboard.withIsbn")}
+                value={metadata.books_with_isbn}
+                max={overview.total_books}
+                subLabel={overview.total_books > 0 ? `${Math.round((metadata.books_with_isbn / overview.total_books) * 100)}%` : "0%"}
+                color="hsl(280 60% 50%)"
+              />
            </div>
          </CardContent>
        </Card>
      </div>

-      {/* Libraries breakdown */}
-      {by_library.length > 0 && (
+      {/* Libraries breakdown + Top series */}
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+        {by_library.length > 0 && (
+          <Card hover={false}>
+            <CardHeader>
+              <CardTitle className="text-base">{t("dashboard.libraries")}</CardTitle>
+            </CardHeader>
+            <CardContent>
+              <RcStackedBar
+                data={by_library.map((lib) => ({
+                  name: lib.library_name,
+                  read: lib.read_count,
+                  reading: lib.reading_count,
+                  unread: lib.unread_count,
+                  sizeLabel: formatBytes(lib.size_bytes),
+                }))}
+                labels={{
+                  read: t("status.read"),
+                  reading: t("status.reading"),
+                  unread: t("status.unread"),
+                  books: t("dashboard.books"),
+                }}
+              />
+            </CardContent>
+          </Card>
+        )}
+
+        {/* Top series */}
        <Card hover={false}>
          <CardHeader>
-            <CardTitle className="text-base">Libraries</CardTitle>
+            <CardTitle className="text-base">{t("dashboard.popularSeries")}</CardTitle>
          </CardHeader>
          <CardContent>
-            <div className="grid grid-cols-1 md:grid-cols-2 gap-x-8 gap-y-4">
-              {by_library.map((lib, i) => (
-                <div key={i} className="space-y-2">
-                  <div className="flex justify-between items-baseline">
-                    <span className="font-medium text-foreground text-sm">{lib.library_name}</span>
-                    <span className="text-xs text-muted-foreground">{formatBytes(lib.size_bytes)}</span>
-                  </div>
-                  <div className="h-3 bg-muted rounded-full overflow-hidden flex">
-                    <div
-                      className="h-full transition-all duration-500"
-                      style={{ width: `${(lib.read_count / Math.max(lib.book_count, 1)) * 100}%`, backgroundColor: "hsl(142 60% 45%)" }}
-                      title={`Read: ${lib.read_count}`}
-                    />
-                    <div
-                      className="h-full transition-all duration-500"
-                      style={{ width: `${(lib.reading_count / Math.max(lib.book_count, 1)) * 100}%`, backgroundColor: "hsl(45 93% 47%)" }}
-                      title={`In progress: ${lib.reading_count}`}
-                    />
-                    <div
-                      className="h-full transition-all duration-500"
-                      style={{ width: `${(lib.unread_count / Math.max(lib.book_count, 1)) * 100}%`, backgroundColor: "hsl(220 13% 70%)" }}
-                      title={`Unread: ${lib.unread_count}`}
-                    />
-                  </div>
-                  <div className="flex gap-3 text-[11px] text-muted-foreground">
-                    <span>{lib.book_count} books</span>
-                    <span className="text-success">{lib.read_count} read</span>
-                    <span className="text-warning">{lib.reading_count} in progress</span>
-                  </div>
-                </div>
-              ))}
-            </div>
+            <RcHorizontalBar
+              noDataLabel={t("dashboard.noSeries")}
+              data={top_series.slice(0, 8).map((s) => ({
+                name: s.series,
+                value: s.book_count,
+                subLabel: t("dashboard.readCount", { read: s.read_count, total: s.book_count }),
+              }))}
+              color="hsl(142 60% 45%)"
+            />
          </CardContent>
        </Card>
-      )}
+      </div>
+
+      {/* Additions line chart – full width */}
+      <Card hover={false}>
+        <CardHeader className="flex flex-row items-center justify-between space-y-0">
+          <CardTitle className="text-base">{t("dashboard.booksAdded")}</CardTitle>
+          <PeriodToggle labels={{ day: t("dashboard.periodDay"), week: t("dashboard.periodWeek"), month: t("dashboard.periodMonth") }} />
+        </CardHeader>
+        <CardContent>
+          <RcAreaChart
+            noDataLabel={noDataLabel}
+            data={additions_over_time.map((m) => ({ label: formatChartLabel(m.month, period, locale), value: m.books_added }))}
+            color="hsl(198 78% 37%)"
+          />
+        </CardContent>
+      </Card>
+
+      {/* Jobs over time – multi-line chart */}
+      <Card hover={false}>
+        <CardHeader className="flex flex-row items-center justify-between space-y-0">
+          <CardTitle className="text-base">{t("dashboard.jobsOverTime")}</CardTitle>
+          <PeriodToggle labels={{ day: t("dashboard.periodDay"), week: t("dashboard.periodWeek"), month: t("dashboard.periodMonth") }} />
+        </CardHeader>
+        <CardContent>
+          <RcMultiLineChart
+            noDataLabel={noDataLabel}
+            data={jobs_over_time.map((j) => ({
+              label: formatChartLabel(j.label, period, locale),
+              scan: j.scan,
+              rebuild: j.rebuild,
+              thumbnail: j.thumbnail,
+              other: j.other,
+            }))}
+            lines={[
+              { key: "scan", label: t("dashboard.jobScan"), color: "hsl(198 78% 37%)" },
+              { key: "rebuild", label: t("dashboard.jobRebuild"), color: "hsl(142 60% 45%)" },
+              { key: "thumbnail", label: t("dashboard.jobThumbnail"), color: "hsl(45 93% 47%)" },
+              { key: "other", label: t("dashboard.jobOther"), color: "hsl(280 60% 50%)" },
+            ]}
+          />
+        </CardContent>
+      </Card>

      {/* Quick links */}
-      <QuickLinks />
+      <QuickLinks t={t} />
    </div>
  );
 }
@@ -345,12 +456,12 @@ function StatCard({ icon, label, value, color }: { icon: string; label: string;
  );
 }

-function QuickLinks() {
+function QuickLinks({ t }: { t: TranslateFunction }) {
  const links = [
-    { href: "/libraries", label: "Libraries", bg: "bg-primary/10", text: "text-primary", hoverBg: "group-hover:bg-primary", hoverText: "group-hover:text-primary-foreground", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" /> },
-    { href: "/books", label: "Books", bg: "bg-success/10", text: "text-success", hoverBg: "group-hover:bg-success", hoverText: "group-hover:text-white", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" /> },
-    { href: "/series", label: "Series", bg: "bg-warning/10", text: "text-warning", hoverBg: "group-hover:bg-warning", hoverText: "group-hover:text-white", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" /> },
-    { href: "/jobs", label: "Jobs", bg: "bg-destructive/10", text: "text-destructive", hoverBg: "group-hover:bg-destructive", hoverText: "group-hover:text-destructive-foreground", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 10V3L4 14h7v7l9-11h-7z" /> },
+    { href: "/libraries", label: t("nav.libraries"), bg: "bg-primary/10", text: "text-primary", hoverBg: "group-hover:bg-primary", hoverText: "group-hover:text-primary-foreground", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" /> },
+    { href: "/books", label: t("nav.books"), bg: "bg-success/10", text: "text-success", hoverBg: "group-hover:bg-success", hoverText: "group-hover:text-white", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" /> },
+    { href: "/series", label: t("nav.series"), bg: "bg-warning/10", text: "text-warning", hoverBg: "group-hover:bg-warning", hoverText: "group-hover:text-white", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" /> },
+    { href: "/jobs", label: t("nav.jobs"), bg: "bg-destructive/10", text: "text-destructive", hoverBg: "group-hover:bg-destructive", hoverText: "group-hover:text-destructive-foreground", icon: <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 10V3L4 14h7v7l9-11h-7z" /> },
  ];

  return (
--- a/apps/backoffice/app/series/page.tsx
+++ b/apps/backoffice/app/series/page.tsx
@@ -1,9 +1,11 @@
-import { fetchAllSeries, fetchLibraries, LibraryDto, SeriesDto, SeriesPageDto, getBookCoverUrl } from "../../lib/api";
+import { fetchAllSeries, fetchLibraries, fetchSeriesStatuses, LibraryDto, SeriesDto, SeriesPageDto, getBookCoverUrl } from "../../lib/api";
+import { getServerTranslations } from "../../lib/i18n/server";
 import { MarkSeriesReadButton } from "../components/MarkSeriesReadButton";
 import { LiveSearchForm } from "../components/LiveSearchForm";
 import { Card, CardContent, OffsetPagination } from "../components/ui";
 import Image from "next/image";
 import Link from "next/link";
+import { ProviderIcon } from "../components/ProviderIcon";

 export const dynamic = "force-dynamic";

@@ -12,40 +14,73 @@ export default async function SeriesPage({
 }: {
  searchParams: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
+  const { t } = await getServerTranslations();
  const searchParamsAwaited = await searchParams;
  const libraryId = typeof searchParamsAwaited.library === "string" ? searchParamsAwaited.library : undefined;
  const searchQuery = typeof searchParamsAwaited.q === "string" ? searchParamsAwaited.q : "";
  const readingStatus = typeof searchParamsAwaited.status === "string" ? searchParamsAwaited.status : undefined;
  const sort = typeof searchParamsAwaited.sort === "string" ? searchParamsAwaited.sort : undefined;
+  const seriesStatus = typeof searchParamsAwaited.series_status === "string" ? searchParamsAwaited.series_status : undefined;
+  const hasMissing = searchParamsAwaited.has_missing === "true";
+  const metadataProvider = typeof searchParamsAwaited.metadata_provider === "string" ? searchParamsAwaited.metadata_provider : undefined;
  const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
  const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;

-  const [libraries, seriesPage] = await Promise.all([
+  const [libraries, seriesPage, dbStatuses] = await Promise.all([
    fetchLibraries().catch(() => [] as LibraryDto[]),
-    fetchAllSeries(libraryId, searchQuery || undefined, readingStatus, page, limit, sort).catch(
+    fetchAllSeries(libraryId, searchQuery || undefined, readingStatus, page, limit, sort, seriesStatus, hasMissing, metadataProvider).catch(
      () => ({ items: [] as SeriesDto[], total: 0, page: 1, limit }) as SeriesPageDto
    ),
+    fetchSeriesStatuses().catch(() => [] as string[]),
  ]);

  const series = seriesPage.items;
  const totalPages = Math.ceil(seriesPage.total / limit);
  const sortOptions = [
-    { value: "", label: "Title" },
-    { value: "latest", label: "Latest added" },
+    { value: "", label: t("books.sortTitle") },
+    { value: "latest", label: t("books.sortLatest") },
  ];

-  const hasFilters = searchQuery || libraryId || readingStatus || sort;
+  const hasFilters = searchQuery || libraryId || readingStatus || sort || seriesStatus || hasMissing || metadataProvider;

  const libraryOptions = [
-    { value: "", label: "All libraries" },
+    { value: "", label: t("books.allLibraries") },
    ...libraries.map((lib) => ({ value: lib.id, label: lib.name })),
  ];

  const statusOptions = [
-    { value: "", label: "All" },
-    { value: "unread", label: "Unread" },
-    { value: "reading", label: "In progress" },
-    { value: "read", label: "Read" },
+    { value: "", label: t("common.all") },
+    { value: "unread", label: t("status.unread") },
+    { value: "reading", label: t("status.reading") },
+    { value: "read", label: t("status.read") },
+  ];
+
+  const KNOWN_STATUSES: Record<string, string> = {
+    ongoing: t("seriesStatus.ongoing"),
+    ended: t("seriesStatus.ended"),
+    hiatus: t("seriesStatus.hiatus"),
+    cancelled: t("seriesStatus.cancelled"),
+    upcoming: t("seriesStatus.upcoming"),
+  };
+  const seriesStatusOptions = [
+    { value: "", label: t("seriesStatus.allStatuses") },
+    ...dbStatuses.map((s) => ({ value: s, label: KNOWN_STATUSES[s] || s })),
+  ];
+
+  const missingOptions = [
+    { value: "", label: t("common.all") },
+    { value: "true", label: t("series.missingBooks") },
+  ];
+
+  const metadataOptions = [
+    { value: "", label: t("series.metadataAll") },
+    { value: "linked", label: t("series.metadataLinked") },
+    { value: "unlinked", label: t("series.metadataUnlinked") },
+    { value: "google_books", label: "Google Books" },
+    { value: "open_library", label: "Open Library" },
+    { value: "comicvine", label: "ComicVine" },
+    { value: "anilist", label: "AniList" },
+    { value: "bedetheque", label: "Bédéthèque" },
  ];

  return (
@@ -55,7 +90,7 @@ export default async function SeriesPage({
          <svg className="w-8 h-8 text-warning" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
          </svg>
-          Series
+          {t("series.title")}
        </h1>
      </div>

@@ -64,10 +99,13 @@ export default async function SeriesPage({
          <LiveSearchForm
            basePath="/series"
            fields={[
-              { name: "q", type: "text", label: "Search", placeholder: "Search by series name...", className: "flex-1 w-full" },
-              { name: "library", type: "select", label: "Library", options: libraryOptions, className: "w-full sm:w-48" },
-              { name: "status", type: "select", label: "Status", options: statusOptions, className: "w-full sm:w-40" },
-              { name: "sort", type: "select", label: "Sort", options: sortOptions, className: "w-full sm:w-40" },
+              { name: "q", type: "text", label: t("common.search"), placeholder: t("series.searchPlaceholder") },
+              { name: "library", type: "select", label: t("books.library"), options: libraryOptions },
+              { name: "status", type: "select", label: t("series.reading"), options: statusOptions },
+              { name: "series_status", type: "select", label: t("editSeries.status"), options: seriesStatusOptions },
+              { name: "has_missing", type: "select", label: t("series.missing"), options: missingOptions },
+              { name: "metadata_provider", type: "select", label: t("series.metadata"), options: metadataOptions },
+              { name: "sort", type: "select", label: t("books.sort"), options: sortOptions },
            ]}
          />
        </CardContent>
@@ -75,8 +113,8 @@ export default async function SeriesPage({

      {/* Results count */}
      <p className="text-sm text-muted-foreground mb-4">
-        {seriesPage.total} series
-        {searchQuery && <> matching &quot;{searchQuery}&quot;</>}
+        {seriesPage.total} {t("series.title").toLowerCase()}
+        {searchQuery && <> {t("series.matchingQuery")} &quot;{searchQuery}&quot;</>}
      </p>

      {/* Series Grid */}
@@ -97,19 +135,19 @@ export default async function SeriesPage({
                  <div className="aspect-[2/3] relative bg-muted/50">
                    <Image
                      src={getBookCoverUrl(s.first_book_id)}
-                      alt={`Cover of ${s.name}`}
+                      alt={t("books.coverOf", { name: s.name })}
                      fill
                      className="object-cover"
-                      unoptimized
+                      sizes="(max-width: 640px) 50vw, (max-width: 768px) 33vw, (max-width: 1024px) 25vw, 16vw"
                    />
                  </div>
                  <div className="p-3">
                    <h3 className="font-medium text-foreground truncate text-sm" title={s.name}>
-                      {s.name === "unclassified" ? "Unclassified" : s.name}
+                      {s.name === "unclassified" ? t("books.unclassified") : s.name}
                    </h3>
                    <div className="flex items-center justify-between mt-1">
                      <p className="text-xs text-muted-foreground">
-                        {s.books_read_count}/{s.book_count} lu{s.book_count !== 1 ? "s" : ""}
+                        {t("series.readCount", { read: String(s.books_read_count), total: String(s.book_count), plural: s.book_count !== 1 ? "s" : "" })}
                      </p>
                      <MarkSeriesReadButton
                        seriesName={s.name}
@@ -117,6 +155,29 @@ export default async function SeriesPage({
                        booksReadCount={s.books_read_count}
                      />
                    </div>
+                    <div className="flex items-center gap-1 mt-1.5 flex-wrap">
+                      {s.series_status && (
+                        <span className={`text-[10px] px-1.5 py-0.5 rounded-full font-medium ${
+                          s.series_status === "ongoing" ? "bg-blue-500/15 text-blue-600" :
+                          s.series_status === "ended" ? "bg-green-500/15 text-green-600" :
+                          s.series_status === "hiatus" ? "bg-amber-500/15 text-amber-600" :
+                          s.series_status === "cancelled" ? "bg-red-500/15 text-red-600" :
+                          "bg-muted text-muted-foreground"
+                        }`}>
+                          {KNOWN_STATUSES[s.series_status] || s.series_status}
+                        </span>
+                      )}
+                      {s.missing_count != null && s.missing_count > 0 && (
+                        <span className="text-[10px] px-1.5 py-0.5 rounded-full font-medium bg-yellow-500/15 text-yellow-600">
+                          {t("series.missingCount", { count: String(s.missing_count), plural: s.missing_count > 1 ? "s" : "" })}
+                        </span>
+                      )}
+                      {s.metadata_provider && (
+                        <span className="text-[10px] px-1.5 py-0.5 rounded-full font-medium bg-purple-500/15 text-purple-600 inline-flex items-center gap-0.5">
+                          <ProviderIcon provider={s.metadata_provider} size={10} />
+                        </span>
+                      )}
+                    </div>
                  </div>
                </div>
              </Link>
@@ -138,7 +199,7 @@ export default async function SeriesPage({
            </svg>
          </div>
          <p className="text-muted-foreground text-lg">
-            {hasFilters ? "No series found matching your filters" : "No series available"}
+            {hasFilters ? t("series.noResults") : t("series.noSeries")}
          </p>
        </div>
      )}
--- a/apps/backoffice/app/settings/SettingsPage.tsx
+++ b/apps/backoffice/app/settings/SettingsPage.tsx
--- a/Show More
+++ b/Show More