add more logs

app/main.py

@@ -17,7 +17,7 @@ def health_check():
     return {"status": "ok", "message": "YouTube Downloader API is running."}
 
 @app.post("/download")
-async def download(payload: DownloadRequest):  # ✅ sửa lại đúng tên class
+async def download(payload: DownloadRequest):  # ✅ tên đúng
     try:
         video_path = download_video(payload.url, payload.cookie)