- Refactor checkStatus() to delegate to NotificationStatusChecker
- Refactor getNotificationStatus() to delegate to NotificationStatusChecker
- Refactor checkPermissionStatus() to delegate to PermissionManager
- Add service instance variables and initialization in load()
- Defer getExactAlarmStatus() (requires complex service initialization)
Reduces plugin class complexity by ~130 lines.
Services already exist - this is delegation, not extraction.
Refs: docs/progress/P2.1-BATCH-1.md