refactor(metadata): move cover resolution to extensions

lib/screens/settings/metadata_settings_page.dart

@@ -52,15 +52,6 @@ class MetadataSettingsPage extends ConsumerWidget {
                         settings.artistTagMode,
                       ),
                     ),
-                    SettingsSwitchItem(
-                      icon: Icons.image,
-                      title: context.l10n.optionsMaxQualityCover,
-                      subtitle: context.l10n.optionsMaxQualityCoverSubtitle,
-                      value: settings.maxQualityCover,
-                      onChanged: (v) => ref
-                          .read(settingsProvider.notifier)
-                          .setMaxQualityCover(v),
-                    ),
                     SettingsSwitchItem(
                       icon: Icons.graphic_eq,
                       title: context.l10n.optionsReplayGain,

lib/screens/settings/settings_search_catalog.dart

@@ -233,12 +233,6 @@ class SettingsSearchCatalog {
           title: l10n.optionsArtistTagMode,
           keywords: const ['artist separator', 'multiple artists'],
         ),
-        SettingsSearchEntry(
-          icon: Icons.image,
-          title: l10n.optionsMaxQualityCover,
-          subtitle: l10n.optionsMaxQualityCoverSubtitle,
-          keywords: const ['artwork', 'album art', 'cover size'],
-        ),
         SettingsSearchEntry(
           icon: Icons.graphic_eq,
           title: l10n.optionsReplayGain,

lib/screens/track_metadata_edit_sheet.dart

@@ -37,11 +37,11 @@ class _MetadataCandidateArtworkState extends State<_MetadataCandidateArtwork> {
   void initState() {
     super.initState();
     if (widget.coverUrl?.isNotEmpty == true) {
-      unawaited(_loadMaxQualityCover());
+      unawaited(_loadCover());
     }
   }
 
-  Future<void> _loadMaxQualityCover() async {
+  Future<void> _loadCover() async {
     final tempDir = await Directory.systemTemp.createTemp(
       'metadata_candidate_cover_',
     );
@@ -50,7 +50,6 @@ class _MetadataCandidateArtworkState extends State<_MetadataCandidateArtwork> {
       final result = await PlatformBridge.downloadCoverToFile(
         widget.coverUrl!,
         path,
-        maxQuality: true,
       );
       if (result['error'] != null || !await File(path).exists()) {
         await tempDir.delete(recursive: true);
@@ -588,11 +587,7 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
     );
     final coverPath = '${tempDir.path}${Platform.pathSeparator}cover.jpg';
     try {
-      await PlatformBridge.downloadCoverToFile(
-        coverUrl,
-        coverPath,
-        maxQuality: true,
-      );
+      await PlatformBridge.downloadCoverToFile(coverUrl, coverPath);
       final file = File(coverPath);
       if (!await file.exists() || await file.length() <= 0) {
         await tempDir.delete(recursive: true);

lib/screens/track_metadata_lyrics.dart

@@ -685,14 +685,12 @@ extension _TrackMetadataLyricsAndSaving on _TrackMetadataScreenState {
             result = await PlatformBridge.downloadCoverToFile(
               _coverUrl!,
               tempOutput,
-              maxQuality: true,
             );
           }
         } else if (_coverUrl != null && _coverUrl!.isNotEmpty) {
           result = await PlatformBridge.downloadCoverToFile(
             _coverUrl!,
             tempOutput,
-            maxQuality: true,
           );
         } else {
           if (mounted) {
@@ -781,14 +779,12 @@ extension _TrackMetadataLyricsAndSaving on _TrackMetadataScreenState {
           result = await PlatformBridge.downloadCoverToFile(
             _coverUrl!,
             outputPath,
-            maxQuality: true,
           );
         }
       } else if (_coverUrl != null && _coverUrl!.isNotEmpty) {
         result = await PlatformBridge.downloadCoverToFile(
           _coverUrl!,
           outputPath,
-          maxQuality: true,
         );
       } else {
         if (mounted) {
@@ -996,7 +992,6 @@ extension _TrackMetadataLyricsAndSaving on _TrackMetadataScreenState {
       final request = <String, dynamic>{
         'file_path': cleanFilePath,
         'cover_url': _coverUrl ?? '',
-        'max_quality': true,
         'embed_lyrics': settings.embedLyrics,
         'lyrics_mode': settings.lyricsMode,
         'artist_tag_mode': artistTagMode,