{task_id: "90a0d810-5bc7-4491-889d-b018df41903a", status: "processing",…}
progress: 
{percentage: 10.665, message: "正在上传高清视频到云存储...", stage: "synthesis",…}
message: "正在上传高清视频到云存储..."
percentage: 10.665
stage: 
"synthesis"
timestamp: 
"2025-09-17T10:10:21.146770"
project_id: 
"e9be9495-fe4b-41da-9d73-9b7179cd72a6"
stage: "synthesis"
status: "processing"
task_id: "90a0d810-5bc7-4491-889d-b018df41903a"
updated_at: "2025-09-17T10:10:21.146770"