enh: folders

backend/open_webui/routers/folders.py

@@ -49,7 +49,7 @@ async def get_folders(user=Depends(get_verified_user)):
             **folder.model_dump(),
             "items": {
                 "chats": [
-                    {"title": chat.title, "id": chat.id}
+                    {"title": chat.title, "id": chat.id, "updated_at": chat.updated_at}
                     for chat in Chats.get_chats_by_folder_id_and_user_id(
                         folder.id, user.id
                     )