Critical Priority Improvements (Completed):
- Enhanced exact-time reliability for Doze & Android 12+ with setExactAndAllowWhileIdle
- Implemented DST-safe time calculation using Java 8 Time API to prevent notification drift
- Added comprehensive schema validation with Zod for all notification inputs
- Created Android 13+ permission UX with graceful fallbacks and education dialogs
High Priority Improvements (Completed):
- Implemented work deduplication and idempotence in DailyNotificationWorker
- Added atomic locks and completion tracking to prevent race conditions
- Enhanced error handling and logging throughout the notification pipeline
New Services Added:
- NotificationValidationService: Runtime schema validation with detailed error messages
- NotificationPermissionManager: Comprehensive permission handling with user education
Documentation Added:
- NOTIFICATION_STACK_IMPROVEMENT_PLAN.md: Complete implementation roadmap with checkboxes
- VUE3_NOTIFICATION_IMPLEMENTATION_GUIDE.md: Vue3 integration guide with code examples
This implementation addresses the most critical reliability and user experience issues
identified in the notification stack analysis, providing a solid foundation for
production-ready notification delivery.
Matthew Raymer