查询视频生成任务（ark 原生端点）

轮询任务状态：queued/running/succeeded/failed/cancelled；成功时 content.video_url 为结果地址。

授权

BearerAuth

授权Bearer <token>

使用 Bearer Token 认证。格式: Authorization: Bearer sk-xxxxxx

位置: header

task_id*string

curl -X GET "https://example.com/api/v3/contents/generations/tasks/string"

{  "id": "task_abc123",  "model": "dola-seedance-2-0-260628",  "status": "succeeded",  "content": {    "video_url": "https://example.com/v.mp4"  }}