feat: lessons station + technician workbench + polish
Phase 3: Technician workbench
- Focused single-ticket view with Work, Parts, Photos, Notes sections
- Template quick-add for line items, inline add/delete
- Ticket selector for multiple assigned tickets
Phase 4: Lessons desk view
- Today overview: all instructors' sessions, group by time/instructor
- Quick check-in (attended/missed/cancelled) buttons
- Highlights upcoming and overdue sessions
- Schedule view: weekly grid with instructor filter, open slots
Phase 5: Lessons instructor view
- My Sessions (today) + Week calendar sub-views
- Session detail with attendance, notes, plan items
- Week calendar with session blocks, click to open detail dialog
Phase 6: Polish
- Permission-based routing: desk vs tech/instructor views
- Build and lint clean
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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