feat(13-01): add library-filtered sqlc queries for all browse views

- GetAllTracksWithFullMetadataByLibrary for tracks filtered by library
- GetAudioFilesByReleaseGroupByLibrary for album tracks in a library
- GetAllAlbumsWithDetailsByLibrary for albums with tracks in a library
- GetAlbumsByArtistByLibrary for artist albums in a library
- GetAlbumArtistsByLibrary for artists with albums in a library
- GetAllGenresWithCountsByLibrary for genre counts within a library
- GetTracksByGenreByLibrary for genre tracks within a library

backend/database/sql/sqlcgen/artists.sql.go

@@ -72,6 +72,48 @@ func (q *Queries) GetAlbumArtists(ctx context.Context) ([]Artist, error) {
 	return items, nil
 }
 
+const getAlbumArtistsByLibrary = `-- name: GetAlbumArtistsByLibrary :many
+SELECT DISTINCT a.id, a.name
+FROM artists a
+JOIN artist_credit_artist aca ON aca.artist_id = a.id
+JOIN artist_credit ac ON ac.id = aca.credit_id
+JOIN release_groups rg ON rg.album_artist_credit_id = ac.id
+WHERE a.id IN (
+    SELECT DISTINCT aca2.artist_id
+    FROM artist_credit_artist aca2
+    JOIN artist_credit ac2 ON ac2.id = aca2.credit_id
+    JOIN release_groups rg2 ON rg2.album_artist_credit_id = ac2.id
+    JOIN release_group_recordings rgr2 ON rgr2.release_group_id = rg2.id
+    JOIN recordings r2 ON r2.id = rgr2.recording_id
+    JOIN audio_files af2 ON af2.recording_id = r2.id
+    WHERE af2.library_id = ?
+)
+ORDER BY a.name
+`
+
+func (q *Queries) GetAlbumArtistsByLibrary(ctx context.Context, libraryID int64) ([]Artist, error) {
+	rows, err := q.db.QueryContext(ctx, getAlbumArtistsByLibrary, libraryID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Artist
+	for rows.Next() {
+		var i Artist
+		if err := rows.Scan(&i.ID, &i.Name); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const getAllArtists = `-- name: GetAllArtists :many
 SELECT id, name FROM artists
 ORDER BY name