- 5 new push listeners: invoice overdue, installment overdue, attendance threshold, waitlist spot, service request resolved
- Deep-link route field added to all push payloads for Flutter navigation
- Announcement broadcast system: send push to all/group/branch/program parents
- Push analytics tracking: delivered/opened/dismissed events from client
- Badge count endpoint for silent background refresh
- Device heartbeat for activity tracking
- Scheduled announcement sender command (runs every minute)
- ServiceRequestResolved event + push notification
- 59 total API routes, 24 tests passing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>