查询图片任务状态与结果

{
    "code": "success",
    "data": {
        "task_id": "task_202603200001",
        "status": "processing",
        "format": "png",
        "url": "",
        "usage": {
            "input_tokens": 9,
            "output_tokens": 0,
            "total_tokens": 9
        },
        "error": null,
        "metadata": null
    }
}