- Replace SELECT-then-UPDATE with atomic UPDATE ... WHERE token=? AND status='pending' RETURNING *
to prevent confirmation token replay attacks (TOCTOU race condition)
- Fix requireRoleOrSuperUser() error message: swap the conditional branches so
'Forbidden: super user privileges required' is returned when user lacks role,
and 'Forbidden: role X is not permitted' when user is not superuser
- Add 'and' mock export to confirmation.test.ts and rbac.test.ts for new query patterns
- Update test expectations to match corrected error message semantics
Add customer confirmation/cancellation flow for appointments:
- DB migration (0013): add confirmation_status, confirmed_at, cancelled_at,
confirmation_token to appointments table with index on token column
- schema.ts + factories.ts + types: expose new columns and ConfirmationStatus type
- GET /api/book/confirm/:token — tokenized confirm via email link (redirects)
- GET /api/book/cancel/:token — tokenized cancel via email link, single-use token
- POST /api/appointments/:id/confirm — portal/staff confirm endpoint
- POST /api/appointments/:id/cancel — portal/staff cancel endpoint
- Reminder emails now include Confirm/Cancel CTA buttons with tokenized links
- Reminder service generates confirmation token if missing before sending
- Staff calendar shows confirmation status indicator on appointment cards
and in the detail modal (confirmed ✓ / customer cancelled ✗)
- /booking/confirmed, /booking/cancelled, /booking/error redirect pages
- 23 new unit tests covering all new endpoints and edge cases
Co-Authored-By: Paperclip <noreply@paperclip.ing>