many changes

src-tauri/src/repository/offline.rs

@@ -918,6 +918,27 @@ impl MediaRepository for OfflineRepository {
         format!("offline://{}/{}", item_id, type_str)
     }
 
+    fn get_subtitle_url(
+        &self,
+        _item_id: &str,
+        _media_source_id: &str,
+        _stream_index: i32,
+        _format: &str,
+    ) -> String {
+        // Subtitles not available offline
+        String::new()
+    }
+
+    fn get_video_download_url(
+        &self,
+        _item_id: &str,
+        _quality: &str,
+        _media_source_id: Option<&str>,
+    ) -> String {
+        // Cannot download while offline
+        String::new()
+    }
+
     async fn mark_favorite(&self, _item_id: &str) -> Result<(), RepoError> {
         // Cannot update server while offline
         Err(RepoError::Offline)