Status
Priority
High
Superseded by: rsvp_reservation_eca: standalone recipe for reservation workflow automation (created 2026-05-24). The new card captures the correct scope — standalone recipe, phased approach, ECA 3.x sub-module research, and the three concrete models (status transitions, series recurrence warning, auto-tentative on instance create).
Original scope for reference:
- Conflict detection plugin in rsvp-system-module
- Event sync (reservation status → event status)
- Status transition rules
- Series booking warning (editing recurrence pattern destroys instances)