{
  "ok": true,
  "backend": "wan22_hook",
  "output": "/data/labs/pipeline-showcase/web/eval/guangtou-ba-dh/lipsync-l0-wan22-8s.mp4",
  "duration_sec": 8.0,
  "portrait": "/data/labs/guangtou-ba-dh/lipsync-l0/portrait-9x16.png",
  "audio_source": "/data/labs/pipeline-showcase/web/eval/guangtou-ba-dh/light-lin-l4-composed-v5.mp4",
  "note": "L0 motion spike; true lip-sync needs LivePortrait/InfiniteTalk workflow"
}