Document that boot recovery can skip rescheduling after device restart
(duplicate PendingIntent check), causing the next daily notification to
fail to fire on devices that clear AlarmManager alarms on reboot. Include
Scenario 1 logcat (notification fired when alarm survived), two-scenario
distinction, recommended fix (skipPendingIntentIdempotence in boot path),
duplicate-alarm clarification, and Cursor-ready implementation section
for the daily-notification-plugin repo.