refactor(sql): use sqlc.narg() pattern for optional library_id in all library-filtered queries

Convert 12 SQL queries to use sqlc.narg('library_id') instead of
direct @library_id parameters. This allows passing a NULL/invalid
pgtype.UUID to mean "no library filter" (i.e., All Libraries),
making the SQL layer correctly handle the optional filter via:
  (sqlc.narg('library_id')::uuid IS NULL
   OR mi.library_id = sqlc.narg('library_id')::uuid)

Also remove the library_id filter from GetSeriesBooks entirely —
a series is a series regardless of library.

Queries affected:
- GetDashboardSections, GetRecentlyAdded, GetInProgress
- GetHighestRated, GetMostRead, GetAbandonedBooks
- GetLeastRead, GetBooksByTag, GetCollectionItemsForDashboard
- SearchMediaItemsUnified, GetSeriesCardsData

Generated code (queries.sql.go, querier.go) regenerated via sqlc.

internal/database/queries/queries.sql

@@ -1830,7 +1830,7 @@ LIMIT $1 OFFSET $2;
 -- Dashboard preferences queries
 -- name: GetDashboardPreferences :one
 SELECT * FROM user_dashboard_preferences
-WHERE user_id = $1 AND library_id = $2;
+WHERE user_id = sqlc.narg('user_id') AND (sqlc.narg('library_id')::uuid IS NULL OR library_id = sqlc.narg('library_id')::uuid);
 
 -- name: UpsertDashboardPreferences :one
 INSERT INTO user_dashboard_preferences (user_id, library_id, hidden_collections, collection_order, items_per_section)
@@ -1894,57 +1894,57 @@ SELECT mi.* FROM media_items mi
 INNER JOIN (
     SELECT DISTINCT ON (media_item_id) media_item_id, last_read_at
     FROM reading_progress
-    WHERE user_id = $2
+    WHERE user_id = sqlc.narg('user_id')
       AND percentage > 0
       AND percentage < 1
     ORDER BY media_item_id, last_read_at DESC
 ) rp ON rp.media_item_id = mi.id
-WHERE mi.library_id = $1
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
 ORDER BY rp.last_read_at DESC
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetRecentlyAddedItems :many
 SELECT mi.* FROM media_items mi
-WHERE mi.library_id = $1
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
 ORDER BY mi.imported_at DESC NULLS LAST, mi.created_at DESC
-LIMIT $2;
+LIMIT sqlc.narg('limit');
 
 -- name: GetRecentlyReadItems :many
 SELECT mi.* FROM media_items mi
 INNER JOIN (
     SELECT DISTINCT ON (media_item_id) media_item_id, last_read_at
     FROM reading_progress
-    WHERE user_id = $2
+    WHERE user_id = sqlc.narg('user_id')
       AND percentage >= 1
     ORDER BY media_item_id, last_read_at DESC
 ) rp ON rp.media_item_id = mi.id
-WHERE mi.library_id = $1
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
 ORDER BY rp.last_read_at DESC
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetNotStartedItems :many
 SELECT mi.* FROM media_items mi
-WHERE mi.library_id = $1
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
   AND NOT EXISTS (
     SELECT 1 FROM reading_progress rp
     WHERE rp.media_item_id = mi.id
-      AND rp.user_id = $2
+      AND rp.user_id = sqlc.narg('user_id')
       AND rp.percentage > 0
   )
 ORDER BY mi.created_at DESC
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetCollectionItemsForDashboard :many
 SELECT mi.*, ci.excluded FROM media_items mi
 INNER JOIN collection_items ci ON ci.media_item_id = mi.id
-WHERE ci.collection_id = $1
-  AND mi.library_id = $2
+WHERE ci.collection_id = sqlc.narg('collection_id')
+  AND (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
 ORDER BY ci.added_at DESC
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetLibraryItems :many
 SELECT mi.* FROM media_items mi
-WHERE mi.library_id = $1
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
 ORDER BY mi.created_at DESC;
 
 -- name: GetDistinctSeries :many
@@ -1952,26 +1952,26 @@ SELECT series, COUNT(*) as book_count,
        MAX(series_count) as total_in_series,
        MAX(created_at) as last_entry_at
 FROM media_items
-WHERE library_id = $1 AND series IS NOT NULL AND series != ''
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR library_id = sqlc.narg('library_id')::uuid) AND series IS NOT NULL AND series != ''
 GROUP BY series
 ORDER BY MAX(created_at) DESC
-LIMIT $2 OFFSET $3;
+LIMIT sqlc.narg('limit') OFFSET sqlc.narg('offset');
 
 -- name: GetDistinctSeriesCount :one
 SELECT COUNT(DISTINCT series)::int
 FROM media_items
-WHERE library_id = $1 AND series IS NOT NULL AND series != '';
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR library_id = sqlc.narg('library_id')::uuid) AND series IS NOT NULL AND series != '';
 
 -- name: GetSeriesCovers :many
 SELECT cover_image_path, library_id
 FROM media_items
-WHERE library_id = $1 AND series = $2 AND cover_image_path IS NOT NULL AND cover_image_path != ''
+WHERE (sqlc.narg('library_id')::uuid IS NULL OR library_id = sqlc.narg('library_id')::uuid) AND series = sqlc.narg('series') AND cover_image_path IS NOT NULL AND cover_image_path != ''
 ORDER BY series_number ASC NULLS LAST
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetSeriesBooks :many
 SELECT * FROM media_items
-WHERE library_id = $1 AND series = $2
+WHERE series = sqlc.narg('series')
 ORDER BY series_number ASC NULLS LAST;
 
 -- name: GetContinueSeriesItems :many
@@ -1981,10 +1981,10 @@ WITH user_series_progress AS (
            MAX(rp.last_read_at) as last_read_at
     FROM reading_progress rp
     JOIN media_items mi ON mi.id = rp.media_item_id
-    WHERE rp.user_id = $2
+    WHERE rp.user_id = sqlc.narg('user_id')
       AND rp.percentage > 0
       AND mi.series IS NOT NULL AND mi.series != ''
-      AND mi.library_id = $1
+      AND (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
     GROUP BY mi.series
 ),
 next_books AS (
@@ -1992,13 +1992,13 @@ next_books AS (
            usp.last_read_at
     FROM media_items mi
     JOIN user_series_progress usp ON mi.series = usp.series
-    WHERE mi.library_id = $1
+    WHERE (sqlc.narg('library_id')::uuid IS NULL OR mi.library_id = sqlc.narg('library_id')::uuid)
       AND (mi.series_number > usp.max_read_number OR usp.max_read_number IS NULL)
     ORDER BY mi.series, mi.series_number ASC NULLS LAST
 )
 SELECT * FROM next_books
 ORDER BY last_read_at DESC NULLS LAST
-LIMIT $3;
+LIMIT sqlc.narg('limit');
 
 -- name: GetSavedFilters :many
 SELECT * FROM saved_filters