Added
- Web Push notifications for reminders: opt-in push notifications (Settings → Personal → Notifications) deliver due reminders as system notifications even when the app is closed. A background scheduler sends due task, event and birthday reminders via the Web Push standard (VAPID / RFC 8291); VAPID keys are generated automatically on first use, or can be pinned across redeployments via
VAPID_PUBLIC_KEY,VAPID_PRIVATE_KEYandVAPID_SUBJECT. Requires HTTPS. On devices where push is enabled, the in-app reminder toast still appears while the duplicate in-page browser notification is suppressed.