chore: fix linter warnings and remove unused functions

go_backend/amazon.go

@@ -36,46 +36,6 @@ type AfkarXYZResponse struct {
 	} `json:"data"`
 }
 
-func amazonArtistsMatch(expectedArtist, foundArtist string) bool {
-	normExpected := strings.ToLower(strings.TrimSpace(expectedArtist))
-	normFound := strings.ToLower(strings.TrimSpace(foundArtist))
-
-	if normExpected == normFound {
-		return true
-	}
-
-	if strings.Contains(normExpected, normFound) || strings.Contains(normFound, normExpected) {
-		return true
-	}
-
-	expectedFirst := strings.Split(normExpected, ",")[0]
-	expectedFirst = strings.Split(expectedFirst, " feat")[0]
-	expectedFirst = strings.Split(expectedFirst, " ft.")[0]
-	expectedFirst = strings.TrimSpace(expectedFirst)
-
-	foundFirst := strings.Split(normFound, ",")[0]
-	foundFirst = strings.Split(foundFirst, " feat")[0]
-	foundFirst = strings.Split(foundFirst, " ft.")[0]
-	foundFirst = strings.TrimSpace(foundFirst)
-
-	if expectedFirst == foundFirst {
-		return true
-	}
-
-	if strings.Contains(expectedFirst, foundFirst) || strings.Contains(foundFirst, expectedFirst) {
-		return true
-	}
-
-	expectedASCII := amazonIsASCIIString(expectedArtist)
-	foundASCII := amazonIsASCIIString(foundArtist)
-	if expectedASCII != foundASCII {
-		GoLog("[Amazon] Artist names in different scripts, assuming match: '%s' vs '%s'\n", expectedArtist, foundArtist)
-		return true
-	}
-
-	return false
-}
-
 func amazonIsASCIIString(s string) bool {
 	for _, r := range s {
 		if r > 127 {

go_backend/deezer.go

@@ -1010,10 +1010,7 @@ func (c *DeezerClient) GetExtendedMetadataByISRC(ctx context.Context, isrc strin
 	}
 
 	// SpotifyID contains "deezer:123" format, extract the ID
-	deezerID := track.SpotifyID
-	if strings.HasPrefix(deezerID, "deezer:") {
-		deezerID = strings.TrimPrefix(deezerID, "deezer:")
-	}
+	deezerID := strings.TrimPrefix(track.SpotifyID, "deezer:")
 
 	if deezerID == "" {
 		return nil, fmt.Errorf("track found but no Deezer ID")

go_backend/metadata.go

@@ -682,21 +682,6 @@ func EmbedM4AMetadata(filePath string, metadata Metadata, coverData []byte) erro
 	return nil
 }
 
-func findAtom(data []byte, name string, offset int) int {
-	for i := offset; i < len(data)-8; {
-		size := int(uint32(data[i])<<24 | uint32(data[i+1])<<16 | uint32(data[i+2])<<8 | uint32(data[i+3]))
-		if size < 8 {
-			break
-		}
-		atomName := string(data[i+4 : i+8])
-		if atomName == name {
-			return i
-		}
-		i += size
-	}
-	return -1
-}
-
 // buildMetaAtom builds a complete meta atom with ilst containing metadata
 func buildMetaAtom(metadata Metadata, coverData []byte) []byte {
 	var ilst []byte

lib/providers/recent_access_provider.dart

@@ -122,7 +122,8 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
         items = decoded
             .map((e) => RecentAccessItem.fromJson(e as Map<String, dynamic>))
             .toList();
-      } catch (e) {
+      } catch (_) {
+        // Ignore JSON parse errors, use empty list
       }
     }