Update main.py

main.py

@@ -558,12 +558,11 @@ def process_heavy_files_background(space_id: str, saved_file_paths: List[Dict]):
     except Exception as e:
         print(f"Background processing failed: {e}")
 
-@app.post("/api/spaces/{space_id}/upload")
 @app.post("/api/spaces/{space_id}/upload")
 async def upload_files(
     space_id: str, 
     background_tasks: BackgroundTasks, 
-    files: List[UploadFile] = File(...)
+    files: list[UploadFile]  # <-- Lowercase 'list', no '= File(...)'
 ):
     """Accepts files quickly and processes them in the background"""
     try:
@@ -596,6 +595,7 @@ async def upload_files(
     
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))
+        
 @app.get("/api/spaces/{space_id}/files")
 async def get_files(space_id: str):
     """Get processed files for a space from MongoDB"""