Add push notification functionality with tests and digest scheduler

- Implemented push subscription API with tests for subscribing and unsubscribing users.
- Created web push notification tests triggered by child actions.
- Added digest scheduler to send email digests to users at 9 PM local time.
- Developed utility functions for creating and validating digest action tokens.
- Integrated web push sender to handle sending notifications to users.
- Added service worker for handling push notifications in the frontend.
- Created a push opt-in component for user notification preferences.
- Implemented tests for the push opt-in component to ensure correct behavior.
- Updated frontend services to manage push subscriptions and permissions.

docker-compose.test.yml

@@ -11,6 +11,9 @@ services:
       - FRONTEND_URL=https://devserver.lan:446 # Add this for test env
       - SECRET_KEY=${SECRET_KEY}
       - REFRESH_TOKEN_EXPIRY_DAYS=${REFRESH_TOKEN_EXPIRY_DAYS}
+      - DIGEST_TOKEN_SECRET=${DIGEST_TOKEN_SECRET}
+      - VAPID_PUBLIC_KEY=${VAPID_PUBLIC_KEY}
+      - VAPID_PRIVATE_KEY=${VAPID_PRIVATE_KEY}
     # Add volumes, networks, etc., as needed
 
   chores-test-app-frontend: # Test frontend service name