feat: add recent access history, artist screen redesign, and extension improvements

Recent Access History:
- Quick access to recently visited artists, albums, playlists, and tracks
- Tap search bar to show recent access list
- Stays visible after keyboard dismiss, exit with back button
- Persists across app restarts (SharedPreferences)
- X button to remove items, Clear All button for all

Artist Screen Redesign:
- Full-width header image with gradient overlay
- Monthly listeners display with compact notation
- Popular section with top 5 tracks and download status
- Extension artists skip Spotify/Deezer fetch (no rate limit errors)

Go Backend:
- GetArtistWithExtensionJSON now returns top_tracks, header_image, listeners

Bug Fixes:
- Search bar unfocus when tapping outside
- Keyboard not appearing on Settings navigation return
- Recent access artist navigation uses correct screen for extensions
- Extension artist screen correctly parses and forwards top tracks

Localization:
- Added recentPlaylistInfo, errorGeneric strings
- Multi-language support via Crowdin

Extensions:
- YT Music: v1.5.0 (top_tracks in getArtist)
- Spotify Web: v1.6.0

lib/l10n/app_localizations.dart

@@ -995,6 +995,18 @@ abstract class AppLocalizations {
   /// **'{count, plural, =1{1 release} other{{count} releases}}'**
   String artistReleases(int count);
 
+  /// Section header for popular/top tracks
+  ///
+  /// In en, this message translates to:
+  /// **'Popular'**
+  String get artistPopular;
+
+  /// Monthly listener count display
+  ///
+  /// In en, this message translates to:
+  /// **'{count} monthly listeners'**
+  String artistMonthlyListeners(String count);
+
   /// Track metadata screen title
   ///
   /// In en, this message translates to:
@@ -3598,6 +3610,42 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Utility Functions'**
   String get utilityFunctions;
+
+  /// Recent access item type - artist
+  ///
+  /// In en, this message translates to:
+  /// **'Artist'**
+  String get recentTypeArtist;
+
+  /// Recent access item type - album
+  ///
+  /// In en, this message translates to:
+  /// **'Album'**
+  String get recentTypeAlbum;
+
+  /// Recent access item type - song/track
+  ///
+  /// In en, this message translates to:
+  /// **'Song'**
+  String get recentTypeSong;
+
+  /// Recent access item type - playlist
+  ///
+  /// In en, this message translates to:
+  /// **'Playlist'**
+  String get recentTypePlaylist;
+
+  /// Snackbar message when tapping playlist in recent access
+  ///
+  /// In en, this message translates to:
+  /// **'Playlist: {name}'**
+  String recentPlaylistInfo(String name);
+
+  /// Generic error message format
+  ///
+  /// In en, this message translates to:
+  /// **'Error: {message}'**
+  String errorGeneric(String message);
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_de.dart

@@ -513,6 +513,14 @@ class AppLocalizationsDe extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_en.dart

@@ -513,6 +513,14 @@ class AppLocalizationsEn extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_es.dart

@@ -513,6 +513,14 @@ class AppLocalizationsEs extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsEs extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_fr.dart

@@ -513,6 +513,14 @@ class AppLocalizationsFr extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_hi.dart

@@ -513,6 +513,14 @@ class AppLocalizationsHi extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsHi extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_id.dart

@@ -518,6 +518,14 @@ class AppLocalizationsId extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Populer';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count pendengar bulanan';
+  }
+
   @override
   String get trackMetadataTitle => 'Info Lagu';
 
@@ -1989,4 +1997,26 @@ class AppLocalizationsId extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Fungsi Utilitas';
+
+  @override
+  String get recentTypeArtist => 'Artis';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Lagu';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_ja.dart

@@ -513,6 +513,14 @@ class AppLocalizationsJa extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsJa extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_ko.dart

@@ -513,6 +513,14 @@ class AppLocalizationsKo extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsKo extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_nl.dart

@@ -513,6 +513,14 @@ class AppLocalizationsNl extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsNl extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_pt.dart

@@ -513,6 +513,14 @@ class AppLocalizationsPt extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsPt extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_ru.dart

@@ -513,6 +513,14 @@ class AppLocalizationsRu extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,4 +1984,26 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }

lib/l10n/app_localizations_zh.dart

@@ -513,6 +513,14 @@ class AppLocalizationsZh extends AppLocalizations {
     return '$_temp0';
   }
 
+  @override
+  String get artistPopular => 'Popular';
+
+  @override
+  String artistMonthlyListeners(String count) {
+    return '$count monthly listeners';
+  }
+
   @override
   String get trackMetadataTitle => 'Track Info';
 
@@ -1976,6 +1984,28 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get utilityFunctions => 'Utility Functions';
+
+  @override
+  String get recentTypeArtist => 'Artist';
+
+  @override
+  String get recentTypeAlbum => 'Album';
+
+  @override
+  String get recentTypeSong => 'Song';
+
+  @override
+  String get recentTypePlaylist => 'Playlist';
+
+  @override
+  String recentPlaylistInfo(String name) {
+    return 'Playlist: $name';
+  }
+
+  @override
+  String errorGeneric(String message) {
+    return 'Error: $message';
+  }
 }
 
 /// The translations for Chinese, as used in Taiwan (`zh_TW`).

lib/l10n/arb/app_en.arb

@@ -362,6 +362,15 @@
       "count": {"type": "int"}
     }
   },
+  "artistPopular": "Popular",
+  "@artistPopular": {"description": "Section header for popular/top tracks"},
+  "artistMonthlyListeners": "{count} monthly listeners",
+  "@artistMonthlyListeners": {
+    "description": "Monthly listener count display",
+    "placeholders": {
+      "count": {"type": "String", "description": "Formatted listener count"}
+    }
+  },
 
   "trackMetadataTitle": "Track Info",
   "@trackMetadataTitle": {"description": "Track metadata screen title"},
@@ -1459,5 +1468,29 @@
   "@downloadedAlbumSelectToDelete": {"description": "Placeholder when nothing selected"},
 
   "utilityFunctions": "Utility Functions",
-  "@utilityFunctions": {"description": "Extension capability - utility functions"}
+  "@utilityFunctions": {"description": "Extension capability - utility functions"},
+
+  "recentTypeArtist": "Artist",
+  "@recentTypeArtist": {"description": "Recent access item type - artist"},
+  "recentTypeAlbum": "Album",
+  "@recentTypeAlbum": {"description": "Recent access item type - album"},
+  "recentTypeSong": "Song",
+  "@recentTypeSong": {"description": "Recent access item type - song/track"},
+  "recentTypePlaylist": "Playlist",
+  "@recentTypePlaylist": {"description": "Recent access item type - playlist"},
+
+  "recentPlaylistInfo": "Playlist: {name}",
+  "@recentPlaylistInfo": {
+    "description": "Snackbar message when tapping playlist in recent access",
+    "placeholders": {
+      "name": {"type": "String", "description": "Playlist name"}
+    }
+  },
+  "errorGeneric": "Error: {message}",
+  "@errorGeneric": {
+    "description": "Generic error message format",
+    "placeholders": {
+      "message": {"type": "String", "description": "Error message"}
+    }
+  }
 }

lib/l10n/arb/app_id.arb

@@ -324,6 +324,8 @@
 
   "artistReleases": "{count, plural, =1{1 rilis} other{{count} rilis}}",
   "artistCompilations": "Kompilasi",
+  "artistPopular": "Populer",
+  "artistMonthlyListeners": "{count} pendengar bulanan",
 
   "tracksHeader": "Lagu",
   "downloadAllCount": "Unduh Semua ({count})",
@@ -667,5 +669,13 @@
   "folderOrganizationByAlbum": "Berdasarkan Album",
   "folderOrganizationByAlbumSubtitle": "Folder terpisah untuk setiap album",
   "folderOrganizationByArtistAlbum": "Berdasarkan Artis & Album",
-  "folderOrganizationByArtistAlbumSubtitle": "Folder bersarang untuk artis dan album"
+  "folderOrganizationByArtistAlbumSubtitle": "Folder bersarang untuk artis dan album",
+
+  "recentTypeArtist": "Artis",
+  "recentTypeAlbum": "Album",
+  "recentTypeSong": "Lagu",
+  "recentTypePlaylist": "Playlist",
+
+  "recentPlaylistInfo": "Playlist: {name}",
+  "errorGeneric": "Error: {message}"
 }

lib/l10n/supported_locales.dart

@@ -0,0 +1,24 @@
+// GENERATED FILE - DO NOT EDIT
+// Generated by: dart run tool/check_translations.dart 70
+// Only languages with >= 70% translation completion are included.
+// Translation is measured by comparing VALUES (not just key existence).
+//
+// To regenerate, run: dart run tool/check_translations.dart 70
+
+import 'package:flutter/widgets.dart';
+
+/// Minimum translation completion threshold used to filter languages.
+const int translationThreshold = 70;
+
+/// List of locales that meet the translation threshold.
+/// Only these languages will be available in the app.
+const List<Locale> filteredSupportedLocales = <Locale>[
+  Locale('en'),
+  Locale('id'),
+];
+
+/// Set of locale codes for quick lookup.
+const Set<String> filteredLocaleCodes = <String>{
+  'en',
+  'id',
+};