Incident: 2026-04-08 Supabase Instance Freeze

Timeline:
- Last working: April 7, ~07:37 UTC
- Detected: April 8, ~05:30 UTC
- Resolution: Manual reboot via Supabase dashboard
- Duration: ~22 hours downtime

Impact: All apps (admin, teams, barbaard, menu, mobile) unable to authenticate

Root Cause: Supabase instance became unresponsive (not auto-pause)

Prevention:
- [ ] Deploy health-check edge function
- [ ] Set up external monitoring (Uptime Robot)
- [ ] File support ticket for RCA
- [ ] Fix recurring database errors