more refactors

mobile-v2/lib/domain/interfaces/album.interface.dart

@@ -11,4 +11,7 @@ abstract interface class IAlbumRepository {
 
   /// Removes album with the given [id]
   FutureOr<void> deleteId(int id);
+
+  /// Removes all albums
+  FutureOr<void> deleteAll();
 }

mobile-v2/lib/domain/interfaces/album_asset.interface.dart

@@ -14,4 +14,7 @@ abstract interface class IAlbumToAssetRepository {
 
   /// Removes album with the given [albumId]
   FutureOr<void> deleteAlbumId(int albumId);
+
+  /// Removes all album to asset mappings
+  FutureOr<void> deleteAll();
 }

mobile-v2/lib/domain/interfaces/album_etag.interface.dart

@@ -8,4 +8,7 @@ abstract interface class IAlbumETagRepository {
 
   /// Fetches the album etag for the given [albumId]
   FutureOr<AlbumETag?> get(int albumId);
+
+  /// Removes all album eTags
+  FutureOr<void> deleteAll();
 }

mobile-v2/lib/domain/interfaces/user.interface.dart

@@ -8,4 +8,7 @@ abstract interface class IUserRepository {
 
   /// Fetches user
   FutureOr<User?> getForId(String userId);
+
+  /// Removes all users
+  FutureOr<void> deleteAll();
 }