feat: AniList reading status integration

- Add full AniList integration: OAuth connect, series linking, push/pull sync
- Push: PLANNING/CURRENT/COMPLETED based on books read vs total_volumes (never auto-complete from owned books alone)
- Pull: update local reading progress from AniList list (per-user)
- Detailed sync/pull reports with per-series status and progress
- Local user selector in settings to scope sync to a specific user
- Rename "AniList" tab/buttons to generic "État de lecture" / "Reading status"
- Make Bédéthèque and AniList badges clickable links on series detail page
- Fix ON CONFLICT error on series link (provider column in PK)
- Migration 0054: fix series_metadata missing columns (authors, publishers, locked_fields, total_volumes, status)
- Align button heights on series detail page; move MarkSeriesReadButton to action row

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

apps/backoffice/app/(app)/settings/page.tsx

@@ -3,7 +3,8 @@ import SettingsPage from "./SettingsPage";
 
 export const dynamic = "force-dynamic";
 
-export default async function SettingsPageWrapper() {
+export default async function SettingsPageWrapper({ searchParams }: { searchParams: Promise<{ tab?: string }> }) {
+  const { tab } = await searchParams;
   const settings = await getSettings().catch(() => ({
     image_processing: { format: "webp", quality: 85, filter: "lanczos3", max_width: 2160 },
     cache: { enabled: true, directory: "/tmp/stripstream-image-cache", max_size_mb: 10000 },
@@ -25,5 +26,5 @@ export default async function SettingsPageWrapper() {
 
   const users = await fetchUsers().catch(() => []);
 
-  return <SettingsPage initialSettings={settings} initialCacheStats={cacheStats} initialThumbnailStats={thumbnailStats} users={users} />;
+  return <SettingsPage initialSettings={settings} initialCacheStats={cacheStats} initialThumbnailStats={thumbnailStats} users={users} initialTab={tab} />;
 }