StatusResponse

{
    "success": true,
    "data": {
        "taskId": "veo3:a1b2c3d4-e5f6-7890-abcd-ef1234567890",
        "status": "processing",
        "progress": {
            "upstreamStatus": "video_generating",
            "videoGenerationStatus": "MEDIA_GENERATION_STATUS_ACTIVE",
            "retryCount": 0,
            "maxRetries": 3
        },
        "result": {
            "video_url": "https://cdn.example.com/generated/video_123456.mp4",
            "video_media_id": "media_12345",
            "duration": 5,
            "resolution": "1280x720",
            "file_size": "15.6MB"
        },
        "error": "提示词内容不符合要求",
        "message": "视频生成完成"
    }
}