Retry indexer search with stripped parenthetical suffixes when initial query returns no results

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/claude-agent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/service.go

@@ -588,23 +588,58 @@ func (service *MusicAgregatorService) searchIndexer(album *metadataPb.Album, tra
 		artistName = album.GetArtists()[0].GetArtist().GetName()
 	}
 
-	query := album.GetTitle()
-	if artistName != "" {
-		query = artistName + " " + query
-	}
-
 	if tracker == "" {
 		tracker = "all"
 	}
 
-	result, err := service.indexer.Search(query, -1, tracker)
-	if err != nil {
-		log.Error().Err(err).Str("query", query).Msg("indexer search failed")
-		return nil, err
+	title := album.GetTitle()
+	queries := buildSearchQueries(artistName, title)
+
+	for _, query := range queries {
+		result, err := service.indexer.Search(query, -1, tracker)
+		if err != nil {
+			log.Error().Err(err).Str("query", query).Msg("indexer search failed")
+			return nil, err
+		}
+
+		log.Debug().Int("results", len(result.Items)).Str("query", query).Msg("indexer search completed")
+
+		if len(result.Items) > 0 {
+			return result, nil
+		}
+
+		log.Debug().Str("query", query).Msg("no results, trying broader search")
 	}
 
-	log.Debug().Int("results", len(result.Items)).Str("query", query).Msg("indexer search completed")
-	return result, nil
+	return &indexer.SearchResponse{}, nil
+}
+
+func buildSearchQueries(artist, title string) []string {
+	base := title
+	if artist != "" {
+		base = artist + " " + title
+	}
+
+	queries := []string{base}
+
+	stripped := stripParenthetical(title)
+	if stripped != title {
+		q := stripped
+		if artist != "" {
+			q = artist + " " + stripped
+		}
+		queries = append(queries, q)
+	}
+
+	return queries
+}
+
+func stripParenthetical(s string) string {
+	idx := strings.Index(s, "(")
+	if idx > 0 {
+		return strings.TrimSpace(s[:idx])
+	}
+	return s
 }
 
 func (service *MusicAgregatorService) parseSearchResults(searchResult *indexer.SearchResponse, album *metadataPb.Album) []parsedItem {