A Postgres suite starts edit_video and export_video through the real runtime and local artifact store: outputs become linked versions with posters on the card, exports store one version per preset, appended clips and subtitle files of another user are refused at start, and an out-of-range cut fails the job with a readable error. It skips without Postgres or ffmpeg. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MRtGG9ARfqqhma3t85Ro2u