curl -X POST "https://api.omniall.ai/v1/video/generations" \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "omniall-redraw-1",
    "prompt": "重绘",
    "video_url": "https://cdn.example.com/clip.mp4",
    "seconds": 6,
    "resolution": "1080p"
  }'