Adds a floating progress-card stack mounted at the app root that
watches useRagStore.jobs and renders one card per in-flight ingestion
job, regardless of which page the user is on. Wraps the existing
IngestionProgress component so the progress UI stays consistent with
the per-doc chips in the KB detail panel and chat sidebar.
- Terminal cards (complete/error) linger for 4s then auto-dismiss.
- A manual dismiss button is always available.
- Reduced-motion preference is respected (no slide animation).
- Positioned bottom-right, z-50, pointer-events-none container so
clicks pass through to the page underneath.
Mounted in app/routes/__root.tsx next to the existing SettingsDialog
so it's visible across every authenticated route. Closes the last
deferred item from Phase 2.
2b85a165e6