feat(db): add paged + count queries for library reads

internal/db/dbq/tracks.sql.go

@@ -22,6 +22,17 @@ func (q *Queries) CountTracksByAlbum(ctx context.Context, albumID pgtype.UUID) (
 	return count, err
 }
 
+const countTracksMatching = `-- name: CountTracksMatching :one
+SELECT COUNT(*) FROM tracks WHERE title ILIKE '%' || $1::text || '%'
+`
+
+func (q *Queries) CountTracksMatching(ctx context.Context, dollar_1 string) (int64, error) {
+	row := q.db.QueryRow(ctx, countTracksMatching, dollar_1)
+	var count int64
+	err := row.Scan(&count)
+	return count, err
+}
+
 const getTrackByID = `-- name: GetTrackByID :one
 SELECT id, title, album_id, artist_id, track_number, disc_number, duration_ms, file_path, file_size, file_format, bitrate, mbid, genre, added_at, updated_at FROM tracks WHERE id = $1
 `