A presentation-only timeline for ONE ingested item moving through multiple app-owned processing stages (scan → transcode → thumbnail → caption → publish) — per-stage status/progress/output/logs/warnings/errors, current-stage focus, stage expansion, retry/skip/cancel/restart, duration summary, and vertical/horizontal layouts. Distinct from File Upload Pipeline + Multi-file Queue; never fakes progress.
pnpm dlx shadcn@latest add "https://motiq.dev/r/processing-timeline.json"