feat: add XtreamServiceMobile for Xtream Codes API communication with caching and DNS resolution for mobile.

lib/core/database/hive_service.dart

@@ -20,8 +20,13 @@ class HiveService {
     await Hive.initFlutter();
 
     // Register adapters
-    Hive.registerAdapter(AppUserAdapter());
-    Hive.registerAdapter(PlaylistConfigAdapter());
+    // Register adapters
+    if (!Hive.isAdapterRegistered(0)) {
+      Hive.registerAdapter(AppUserAdapter());
+    }
+    if (!Hive.isAdapterRegistered(1)) {
+      Hive.registerAdapter(PlaylistConfigAdapter());
+    }
 
     // Open boxes WITHOUT encryption on Web
     // Note: On Web, IndexedDB is already isolated by origin,

lib/core/services/playlist_api_service.dart

@@ -7,9 +7,7 @@ class PlaylistApiService {
   /// Get all playlists for current user
   Future<List<PlaylistConfig>> getPlaylists() async {
     try {
-      if (!HiveService.playlistsBox.isOpen) {
-        await HiveService.init();
-      }
+      await HiveService.init();
       return HiveService.playlistsBox.values.toList();
     } catch (e) {
       print('Error fetching playlists from Hive: $e');
@@ -25,6 +23,7 @@ class PlaylistApiService {
     required String password,
   }) async {
     try {
+      await HiveService.init();
       final id = const Uuid().v4();
       final playlist = PlaylistConfig(
         id: id,
@@ -52,6 +51,7 @@ class PlaylistApiService {
     required String password,
   }) async {
     try {
+      await HiveService.init();
       if (!HiveService.playlistsBox.containsKey(id)) {
         return null;
       }
@@ -79,6 +79,7 @@ class PlaylistApiService {
   /// Delete a playlist
   Future<bool> deletePlaylist(String id) async {
     try {
+      await HiveService.init();
       await HiveService.playlistsBox.delete(id);
       return true;
     } catch (e) {