视频生成结果查询

{
    "task_id": "cgt-20250714221020-668xc",
    "video_result": "https://example.com/video.mp4",
    "video_results": [],
    "video_id": "cgt-20250714221020-668xc",
    "task_status": "pending",
    "message": "",
    "duration": "5.0"
}