feat: add resend notification functionality

- Introduced a new notification type "resend" to the system.
- Added database schema for resend notifications including fields for apiKey, fromAddress, and toAddress.
- Implemented functions to create, update, and send resend notifications.
- Updated notification router to handle resend notifications with appropriate API endpoints.
- Enhanced existing notification services to support sending notifications via the Resend service.
- Modified various notification utilities to accommodate the new resend functionality.

packages/server/package.json

@@ -73,6 +73,7 @@
     "qrcode": "^1.5.4",
     "react": "18.2.0",
     "react-dom": "18.2.0",
+    "resend": "^6.0.2",
     "shell-quote": "^1.8.1",
     "slugify": "^1.6.6",
     "ssh2": "1.15.0",