- Add DailyNotificationExactAlarmManager with SCHEDULE_EXACT_ALARM permission handling
- Add DailyNotificationRebootRecoveryManager for system reboot and time-change recovery
- Update DailyNotificationScheduler with exact alarm manager integration
- Add exact alarm status checking and permission request methods
- Add windowed alarm fallback (±10m) when exact alarms are denied
- Add deep-link to exact alarm settings for user guidance
- Add reboot recovery with broadcast receiver registration
- Update TypeScript interface with new exact alarm and recovery methods
- Update web implementations with placeholder methods
- Add phase2-2-android-fallback.ts usage examples
This completes Phase 2.2 Android fallback implementation:
- Exact alarm permission handling with graceful fallback
- Windowed alarm support (±10m) for battery optimization
- Reboot and time-change recovery with broadcast receivers
- Deep-link to exact alarm settings for user enablement
- Integration with existing TTL enforcement and rolling window
- Comprehensive fallback scenarios and error handling
Files: 7 changed, 1200+ insertions(+)
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