fix dataset archives

sync_storage.py

@@ -378,12 +378,14 @@ This repository is automatically managed by the Open WebUI sync system.
             metadata = self._get_metadata()
 
             logger.info(f"Found {len(current_files)} files to preserve.")
+            archive_filenames = [i["filename"] for i in metadata["archives"]]
+            logger.info(f"Archive filenames: {archive_filenames}")
 
             # 2. Download all current files to a temporary directory
             with tempfile.TemporaryDirectory() as tmpdir:
                 logger.info(f"Step 2/5: Downloading current files to a temporary location...")
                 for file_path in current_files:
-                    if file_path.startswith("data-") and (file_path not in metadata["archives"]):
+                    if file_path.startswith("data-") and (file_path not in archive_filenames):
                         logger.info(f"Skipping {file_path} (not in archive)")
                         continue
                     self.api.hf_hub_download(