fix(stats): count authors from both author and authors fields

The total_authors stat now combines distinct values from the legacy
author column and the new authors array column.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Cargo.lock

@@ -51,7 +51,7 @@ checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
 [[package]]
 name = "api"
-version = "1.1.0"
+version = "1.2.0"
 dependencies = [
  "anyhow",
  "argon2",
@@ -1122,7 +1122,7 @@ dependencies = [
 
 [[package]]
 name = "indexer"
-version = "1.1.0"
+version = "1.2.0"
 dependencies = [
  "anyhow",
  "axum",
@@ -1624,7 +1624,7 @@ dependencies = [
 
 [[package]]
 name = "parsers"
-version = "1.1.0"
+version = "1.2.0"
 dependencies = [
  "anyhow",
  "flate2",
@@ -2626,7 +2626,7 @@ dependencies = [
 
 [[package]]
 name = "stripstream-core"
-version = "1.1.0"
+version = "1.2.0"
 dependencies = [
  "anyhow",
  "serde",

Cargo.toml

@@ -9,7 +9,7 @@ resolver = "2"
 
 [workspace.package]
 edition = "2021"
-version = "1.1.0"
+version = "1.2.0"
 license = "MIT"
 
 [workspace.dependencies]

apps/api/src/stats.rs

@@ -91,7 +91,11 @@ pub async fn get_stats(
             COUNT(DISTINCT NULLIF(series, '')) AS total_series,
             COUNT(DISTINCT library_id) AS total_libraries,
             COALESCE(SUM(page_count), 0)::BIGINT AS total_pages,
-            COUNT(DISTINCT author) FILTER (WHERE author IS NOT NULL AND author != '') AS total_authors,
+            (SELECT COUNT(DISTINCT a) FROM (
+                SELECT DISTINCT UNNEST(authors) AS a FROM books WHERE authors != '{}'
+                UNION
+                SELECT DISTINCT author FROM books WHERE author IS NOT NULL AND author != ''
+            ) sub) AS total_authors,
             COUNT(*) FILTER (WHERE COALESCE(brp.status, 'unread') = 'unread') AS unread,
             COUNT(*) FILTER (WHERE brp.status = 'reading') AS reading,
             COUNT(*) FILTER (WHERE brp.status = 'read') AS read

apps/backoffice/package.json

@@ -1,6 +1,6 @@
 {
   "name": "stripstream-backoffice",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "private": true,
   "scripts": {
     "dev": "next dev -p 7082",