Refactor file type functions

scanner/tag_scanner.go

@@ -402,7 +402,7 @@ func loadAllAudioFiles(dirPath string) (map[string]fs.DirEntry, error) {
 			continue
 		}
 		filePath := filepath.Join(dirPath, f.Name())
-		if !utils.IsAudioFile(filePath) {
+		if !model.IsAudioFile(filePath) {
 			continue
 		}
 		fileInfos[filePath] = f

scanner/walk_dir_tree.go

@@ -95,11 +95,11 @@ func loadDir(ctx context.Context, dirPath string) ([]string, *dirStats, error) {
 				stats.ModTime = fileInfo.ModTime()
 			}
 			switch {
-			case utils.IsAudioFile(entry.Name()):
+			case model.IsAudioFile(entry.Name()):
 				stats.AudioFilesCount++
 			case model.IsValidPlaylist(entry.Name()):
 				stats.HasPlaylist = true
-			case utils.IsImageFile(entry.Name()):
+			case model.IsImageFile(entry.Name()):
 				stats.Images = append(stats.Images, entry.Name())
 				if fileInfo.ModTime().After(stats.ImagesUpdatedAt) {
 					stats.ImagesUpdatedAt = fileInfo.ModTime()