Query a single task

{
    "code": "success",
    "message": "",
    "data": {
        "task_id": "cgt-20260228182426-r4rg2",
        "action": "generate",
        "status": "SUCCESS",
        "fail_reason": "https://ark-content-generation-cn-beijing.tos-cn-beijing.volces.com/doubao-seedance-1-5-pro/02177227426673500000000000000000000ffffac191d3696bb7d.mp4?X-Tos-Algorithm=TOS4-HMAC-SHA256&X-Tos-Credential=AKLTYWJkZTExNjA1ZDUyNDc3YzhjNTM5OGIyNjBhNDcyOTQ%2F20260228%2Fcn-beijing%2Ftos%2Frequest&X-Tos-Date=20260228T102510Z&X-Tos-Expires=86400&X-Tos-Signature=f52249f8af30d255d60bd453854907e8f3b04a0c1f94266f3e365e46471b2624&X-Tos-SignedHeaders=host",
        "submit_time": 1772274266,
        "start_time": 1772274279,
        "finish_time": 1772274310,
        "progress": "100%",
        "data": {
            "content": {
                "video_url": "https://ark-content-generation-cn-beijing.tos-cn-beijing.volces.com/doubao-seedance-1-5-pro/02177227426673500000000000000000000ffffac191d3696bb7d.mp4?X-Tos-Algorithm=TOS4-HMAC-SHA256&X-Tos-Credential=AKLTYWJkZTExNjA1ZDUyNDc3YzhjNTM5OGIyNjBhNDcyOTQ%2F20260228%2Fcn-beijing%2Ftos%2Frequest&X-Tos-Date=20260228T102510Z&X-Tos-Expires=86400&X-Tos-Signature=f52249f8af30d255d60bd453854907e8f3b04a0c1f94266f3e365e46471b2624&X-Tos-SignedHeaders=host"
            },
            "created_at": 1772274266,
            "draft": false,
            "duration": 5,
            "execution_expires_after": 172800,
            "framespersecond": 24,
            "generate_audio": true,
            "id": "cgt-20260228182426-r4rg2",
            "model": "doubao-seedance-1-5-pro-251215",
            "ratio": "16:9",
            "resolution": "720p",
            "seed": 6912,
            "service_tier": "default",
            "status": "succeeded",
            "updated_at": 1772274310,
            "usage": {
                "completion_tokens": 108900,
                "total_tokens": 108900
            }
        }
    }
}