v1.5.5: History tab, share intent, artist support, lyrics viewer, folder organization

lib/models/settings.dart

@@ -14,6 +14,10 @@ class AppSettings {
   final bool isFirstLaunch;
   final int concurrentDownloads; // 1 = sequential (default), max 3
   final bool checkForUpdates; // Check for updates on app start
+  final bool hasSearchedBefore; // Hide helper text after first search
+  final String folderOrganization; // none, artist, album, artist_album
+  final bool convertLyricsToRomaji; // Convert Japanese lyrics to romaji
+  final String historyViewMode; // list, grid
 
   const AppSettings({
     this.defaultService = 'tidal',
@@ -26,6 +30,10 @@ class AppSettings {
     this.isFirstLaunch = true,
     this.concurrentDownloads = 1, // Default: sequential (off)
     this.checkForUpdates = true, // Default: enabled
+    this.hasSearchedBefore = false, // Default: show helper text
+    this.folderOrganization = 'none', // Default: no folder organization
+    this.convertLyricsToRomaji = false, // Default: keep original Japanese
+    this.historyViewMode = 'grid', // Default: grid view
   });
 
   AppSettings copyWith({
@@ -39,6 +47,10 @@ class AppSettings {
     bool? isFirstLaunch,
     int? concurrentDownloads,
     bool? checkForUpdates,
+    bool? hasSearchedBefore,
+    String? folderOrganization,
+    bool? convertLyricsToRomaji,
+    String? historyViewMode,
   }) {
     return AppSettings(
       defaultService: defaultService ?? this.defaultService,
@@ -51,6 +63,10 @@ class AppSettings {
       isFirstLaunch: isFirstLaunch ?? this.isFirstLaunch,
       concurrentDownloads: concurrentDownloads ?? this.concurrentDownloads,
       checkForUpdates: checkForUpdates ?? this.checkForUpdates,
+      hasSearchedBefore: hasSearchedBefore ?? this.hasSearchedBefore,
+      folderOrganization: folderOrganization ?? this.folderOrganization,
+      convertLyricsToRomaji: convertLyricsToRomaji ?? this.convertLyricsToRomaji,
+      historyViewMode: historyViewMode ?? this.historyViewMode,
     );
   }