Update technical notes to v0.2.1
- Add schedule inference / missed run detection section (90d/180d windows, cadence guard, MIN_OCCURRENCES)
- Add jobs export/import schema v2 section (Cove + Cloud Connect account links)
- Add inbox batch re-parse section (POST /inbox/reparse-batch, progress modal)
- Add CloudConnectAccount to data model, Job model CC link note
- Add inject_inbox_count context processor to architecture section
- Add Layout v2 UI notes
- Extend Quick References with Cloud Connect, Inbox, Settings routes
- Add Recent Changes entries for v0.2.0 and v0.2.1
- Update last-updated date to 2026-03-20
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>