- Add membership-plans API with GET (list active plans) and POST (create plan)
- Add membership-plans/[id] API with GET (plan details with subscriber count), PUT (update), DELETE (soft delete)
- Add memberships API with GET (list with filters) and POST (create membership for client)
- Add memberships/[id] API with GET (membership details), PUT (update/renew/change plan), DELETE (cancel)
- Add memberships/[id]/renew API for renewing memberships with hour reset
- Add clients/[id]/membership API for quick membership lookup (booking discount calculation)
- Include benefit summaries and expiring membership detection in responses
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
