feat: live search with back navigation and animated transitions

lib/models/download_item.dart

@@ -22,6 +22,7 @@ class DownloadItem {
   final String? filePath;
   final String? error;
   final DateTime createdAt;
+  final String? qualityOverride; // Override quality for this specific download
 
   const DownloadItem({
     required this.id,
@@ -32,6 +33,7 @@ class DownloadItem {
     this.filePath,
     this.error,
     required this.createdAt,
+    this.qualityOverride,
   });
 
   DownloadItem copyWith({
@@ -43,6 +45,7 @@ class DownloadItem {
     String? filePath,
     String? error,
     DateTime? createdAt,
+    String? qualityOverride,
   }) {
     return DownloadItem(
       id: id ?? this.id,
@@ -53,6 +56,7 @@ class DownloadItem {
       filePath: filePath ?? this.filePath,
       error: error ?? this.error,
       createdAt: createdAt ?? this.createdAt,
+      qualityOverride: qualityOverride ?? this.qualityOverride,
     );
   }
 

lib/models/download_item.g.dart

@@ -17,6 +17,7 @@ DownloadItem _$DownloadItemFromJson(Map<String, dynamic> json) => DownloadItem(
   filePath: json['filePath'] as String?,
   error: json['error'] as String?,
   createdAt: DateTime.parse(json['createdAt'] as String),
+  qualityOverride: json['qualityOverride'] as String?,
 );
 
 Map<String, dynamic> _$DownloadItemToJson(DownloadItem instance) =>
@@ -29,6 +30,7 @@ Map<String, dynamic> _$DownloadItemToJson(DownloadItem instance) =>
       'filePath': instance.filePath,
       'error': instance.error,
       'createdAt': instance.createdAt.toIso8601String(),
+      'qualityOverride': instance.qualityOverride,
     };
 
 const _$DownloadStatusEnumMap = {

lib/models/settings.dart

@@ -18,6 +18,7 @@ class AppSettings {
   final String folderOrganization; // none, artist, album, artist_album
   final bool convertLyricsToRomaji; // Convert Japanese lyrics to romaji
   final String historyViewMode; // list, grid
+  final bool askQualityBeforeDownload; // Show quality picker before each download
 
   const AppSettings({
     this.defaultService = 'tidal',
@@ -34,6 +35,7 @@ class AppSettings {
     this.folderOrganization = 'none', // Default: no folder organization
     this.convertLyricsToRomaji = false, // Default: keep original Japanese
     this.historyViewMode = 'grid', // Default: grid view
+    this.askQualityBeforeDownload = false, // Default: use preset quality
   });
 
   AppSettings copyWith({
@@ -51,6 +53,7 @@ class AppSettings {
     String? folderOrganization,
     bool? convertLyricsToRomaji,
     String? historyViewMode,
+    bool? askQualityBeforeDownload,
   }) {
     return AppSettings(
       defaultService: defaultService ?? this.defaultService,
@@ -67,6 +70,7 @@ class AppSettings {
       folderOrganization: folderOrganization ?? this.folderOrganization,
       convertLyricsToRomaji: convertLyricsToRomaji ?? this.convertLyricsToRomaji,
       historyViewMode: historyViewMode ?? this.historyViewMode,
+      askQualityBeforeDownload: askQualityBeforeDownload ?? this.askQualityBeforeDownload,
     );
   }
 

lib/models/settings.g.dart

@@ -20,7 +20,8 @@ AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
   hasSearchedBefore: json['hasSearchedBefore'] as bool? ?? false,
   folderOrganization: json['folderOrganization'] as String? ?? 'none',
   convertLyricsToRomaji: json['convertLyricsToRomaji'] as bool? ?? false,
-  historyViewMode: json['historyViewMode'] as String? ?? 'list',
+  historyViewMode: json['historyViewMode'] as String? ?? 'grid',
+  askQualityBeforeDownload: json['askQualityBeforeDownload'] as bool? ?? false,
 );
 
 Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
@@ -39,4 +40,5 @@ Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
       'folderOrganization': instance.folderOrganization,
       'convertLyricsToRomaji': instance.convertLyricsToRomaji,
       'historyViewMode': instance.historyViewMode,
+      'askQualityBeforeDownload': instance.askQualityBeforeDownload,
     };