Update app.py

app.py

@@ -616,7 +616,7 @@ async def index():
     return HTML_CONTENT
 
 @app.post("/upload")
-async def handle_upload(file: UploadFile = File(...), request: Request):
+async def handle_upload(request: Request, file: UploadFile = File(...)):
     content_range = request.headers.get('Content-Range')
     if not content_range:
         raise HTTPException(status_code=400, detail="Content-Range header is missing")