chore: clean up codebase

lib/services/csv_import_service.dart

@@ -198,8 +198,8 @@ class CsvImportService {
             artistName: artistName ?? 'Unknown Artist',
             albumName: albumName ?? 'Unknown Album',
             isrc: isrc,
-            duration: 0, // Will be updated by enrichment later
-            coverUrl: null, // Will be fetched by enrichment
+            duration: 0,
+            coverUrl: null,
           ),
         );
       }

lib/services/ffmpeg_service.dart

@@ -1437,7 +1437,6 @@ class FFmpegService {
     final cmdBuffer = StringBuffer();
     cmdBuffer.write('-i "$inputPath" ');
 
-    // Cover art as second input for M4A attached picture
     final hasCover =
         coverPath != null &&
         coverPath.trim().isNotEmpty &&
@@ -1455,7 +1454,6 @@ class FFmpegService {
     cmdBuffer.write('-c:a alac ');
     cmdBuffer.write('-map_metadata -1 ');
 
-    // Embed M4A metadata tags
     final m4aTags = _convertToM4aTags(metadata);
     for (final entry in m4aTags.entries) {
       final sanitized = entry.value.replaceAll('"', '\\"');
@@ -1764,7 +1762,6 @@ class FFmpegService {
 
     final outputPaths = <String>[];
     final inputExt = audioPath.toLowerCase().split('.').last;
-    // For lossless formats, keep as FLAC; for others, keep original format
     final outputExt =
         (inputExt == 'flac' ||
             inputExt == 'wav' ||
@@ -1836,14 +1833,10 @@ class FFmpegService {
       final result = await _execute(command);
       if (!result.success) {
         _log.e('CUE split failed for track ${track.number}: ${result.output}');
-        // Continue with remaining tracks instead of failing completely
         continue;
       }
 
-      // Embed cover art if available (for FLAC output)
       if (coverPath != null && coverPath.isNotEmpty && outputExt == 'flac') {
-        // Use the Go backend for FLAC cover embedding via PlatformBridge
-        // (handled by the caller)
       }
 
       outputPaths.add(outputPath);

lib/services/platform_bridge.dart

@@ -1081,7 +1081,6 @@ class PlatformBridge {
     }
   }
 
-  /// Set the directory for caching extracted cover art
   static Future<void> setLibraryCoverCacheDir(String cacheDir) async {
     _log.i('setLibraryCoverCacheDir: $cacheDir');
     await _channel.invokeMethod('setLibraryCoverCacheDir', {
@@ -1089,8 +1088,6 @@ class PlatformBridge {
     });
   }
 
-  /// Scan a folder for audio files and read their metadata
-  /// Returns a list of track metadata
   static Future<List<Map<String, dynamic>>> scanLibraryFolder(
     String folderPath,
   ) async {
@@ -1102,10 +1099,6 @@ class PlatformBridge {
     return list.map((e) => e as Map<String, dynamic>).toList();
   }
 
-  /// Perform an incremental scan of the library folder
-  /// Only scans files that are new or have changed since last scan
-  /// [existingFiles] is a map of filePath -> modTime (unix millis)
-  /// Returns IncrementalScanResult with scanned items, deleted paths, and skip count
   static Future<Map<String, dynamic>> scanLibraryFolderIncremental(
     String folderPath,
     Map<String, int> existingFiles,
@@ -1140,8 +1133,6 @@ class PlatformBridge {
     return list.map((e) => e as Map<String, dynamic>).toList();
   }
 
-  /// Incremental SAF tree scan - only scans new or modified files
-  /// Returns a map with 'files' (new/changed) and 'removedUris' (deleted files)
   static Future<Map<String, dynamic>> scanSafTreeIncremental(
     String treeUri,
     Map<String, int> existingFiles,
@@ -1167,8 +1158,6 @@ class PlatformBridge {
     return jsonDecode(result as String) as Map<String, dynamic>;
   }
 
-  /// Get last-modified timestamps for a list of SAF file URIs.
-  /// Returns map uri -> modTime (unix millis), only for files that still exist.
   static Future<Map<String, int>> getSafFileModTimes(List<String> uris) async {
     final result = await _channel.invokeMethod('getSafFileModTimes', {
       'uris': jsonEncode(uris),
@@ -1177,7 +1166,6 @@ class PlatformBridge {
     return map.map((key, value) => MapEntry(key, (value as num).toInt()));
   }
 
-  /// Get current library scan progress
   static Future<Map<String, dynamic>> getLibraryScanProgress() async {
     final result = await _channel.invokeMethod('getLibraryScanProgress');
     return _decodeMapResult(result);
@@ -1189,7 +1177,6 @@ class PlatformBridge {
     );
   }
 
-  /// Cancel ongoing library scan
   static Future<void> cancelLibraryScan() async {
     await _channel.invokeMethod('cancelLibraryScan');
   }
@@ -1249,7 +1236,6 @@ class PlatformBridge {
     }
   }
 
-  /// Read metadata from a single audio file
   static Future<Map<String, dynamic>?> readAudioMetadata(
     String filePath,
   ) async {
@@ -1369,10 +1355,6 @@ class PlatformBridge {
     await _channel.invokeMethod('clearStoreCache');
   }
 
-  /// Parse a .cue file and return split information (track listing, timing, metadata).
-  /// Returns a map with: cue_path, audio_path, album, artist, genre, date, tracks[]
-  /// Each track has: number, title, artist, isrc, composer, start_sec, end_sec
-  /// [audioDir] optionally overrides the directory for audio file resolution (used for SAF).
   static Future<Map<String, dynamic>> parseCueSheet(
     String cuePath, {
     String audioDir = '',

lib/services/share_intent_service.dart

@@ -80,7 +80,6 @@ class ShareIntentService {
     bool isInitial = false,
   }) {
     for (final file in files) {
-      // Check both path and message - apps may share URL in either field
       final textsToCheck = [file.path, if (file.message != null) file.message!];
 
       for (final textToCheck in textsToCheck) {
@@ -100,13 +99,11 @@ class ShareIntentService {
   String? _extractMusicUrl(String text) {
     if (text.isEmpty) return null;
 
-    // Try Spotify URI first
     final uriMatch = _spotifyUriPattern.firstMatch(text);
     if (uriMatch != null) {
       return uriMatch.group(0);
     }
 
-    // Try all URL patterns
     final patterns = [
       _spotifyUrlPattern,
       _deezerUrlPattern,