The produce worker crashed its claim cycle at the scratch mkdtemp (ENOENT:
the parent dir never existed on a fresh volume) — bootstrap MEDIA_SCRATCH_DIR
recursively at startup. The api image lacked ffprobe entirely, so every
upload's probe job failed — install ffmpeg in the api runtime image.
Deployment (t4g2): media-worker gains font-dejavu (drawtext lower-thirds)
and a dedicated produce-worker compose service running src/produce.ts —
claims video_processing_jobs compose|mix by lane, renders assembled/
overlaid/voiced cuts, registers derived library assets. Deliberately its
own process so a remote-lane box needs only Postgres + S3 + ffmpeg.
Web: compose media attachments UI (t2), Producer panel in the video
drawer (t5), collective creation + branding settings + shell branding
(brandweb), mobile CSS (mcss: touch targets, icon sizing, safe areas).
