forked from retoor/devplacepy
- Introduce push notification module with VAPID certificate generation, Web Push encryption, and subscription management - Add push registration table index and database schema for storing user subscriptions - Integrate push notification dispatch into existing notification creation flow via async background tasks - Include PWA manifest, service worker, and install prompt UI elements in base template - Register new push router and ensure certificate initialization on application startup - Add configuration variables for VAPID private/public key file paths and subscription contact email - Update JavaScript application entry point with PushManager and PwaInstaller modules - Extend top navigation bar with hidden install and push enable buttons for authenticated users