Split software arch desc for easier manintenance. Many fixes related to next video playing and remote playback

src/lib/services/syncService.ts

@@ -28,7 +28,13 @@ export type SyncOperation =
   | "unmark_favorite"
   | "update_progress"
   | "report_playback_start"
-  | "report_playback_stopped";
+  | "report_playback_stopped"
+  | "playlist_create"
+  | "playlist_delete"
+  | "playlist_rename"
+  | "playlist_add_items"
+  | "playlist_remove_items"
+  | "playlist_reorder_item";
 
 /**
  * Simplified sync service - handles offline mutation queueing
@@ -164,6 +170,32 @@ class SyncService {
     return deleted;
   }
 
+  // ===== Playlist sync operations =====
+
+  async queuePlaylistCreate(playlistId: string, name: string, itemIds: string[]): Promise<number> {
+    return this.queueMutation("playlist_create", playlistId, { name, itemIds });
+  }
+
+  async queuePlaylistDelete(playlistId: string): Promise<number> {
+    return this.queueMutation("playlist_delete", playlistId);
+  }
+
+  async queuePlaylistRename(playlistId: string, name: string): Promise<number> {
+    return this.queueMutation("playlist_rename", playlistId, { name });
+  }
+
+  async queuePlaylistAddItems(playlistId: string, itemIds: string[]): Promise<number> {
+    return this.queueMutation("playlist_add_items", playlistId, { itemIds });
+  }
+
+  async queuePlaylistRemoveItems(playlistId: string, entryIds: string[]): Promise<number> {
+    return this.queueMutation("playlist_remove_items", playlistId, { entryIds });
+  }
+
+  async queuePlaylistReorderItem(playlistId: string, itemId: string, newIndex: number): Promise<number> {
+    return this.queueMutation("playlist_reorder_item", playlistId, { itemId, newIndex });
+  }
+
   /**
    * Clear all sync operations for the current user (called during logout)
    *