Summary

• Set up push and in-app notifications using Firebase Cloud Messaging (FCM). Handle both system-level pushes and in-app alerts for duels, profile updates, and event activity.

Tasks

• Configure Firebase Cloud Messaging in Expo project.
• Request and store user push tokens securely.
• Implement backend trigger endpoints for notifications.
• Build in-app notification UI (banner or modal).
• Test on both iOS and Android devices.

Acceptance Criteria

• Users receive push notifications via FCM.
• In-app notifications render properly when app is open.
• Tokens registered and managed per user account.
• Backend can trigger notifications for duel updates and general alerts.

Notes

• Reference Expo FCM setup docs.