Add global search, in-app + push notifications, and fix card/beneficiary/scroll issues

- Global feature search for the user app, wired to the home search icon
- Notifications screen: swipe-to-delete, vanish animation, unread badge,
  and Notifee-backed foreground + background (scheduled) OS notifications
- Fix Add Beneficiary save (single source of truth via beneficiaries slice)
- Fix Cards tab scroll freeze and bottom blank space (use ScreenShell scroll)
- User-friendly toast copy across the app
- Android build tuning: parallel/caching/JVM G1 args, mobile-only ABIs

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package.json

@@ -13,6 +13,7 @@
   "dependencies": {
     "@gorhom/bottom-sheet": "^5.2.14",
     "@maplibre/maplibre-react-native": "^10.4.2",
+    "@notifee/react-native": "^9.1.8",
     "@react-native-async-storage/async-storage": "2.2.0",
     "@react-native-community/geolocation": "^3.4.0",
     "@react-native-vector-icons/ionicons": "^13.0.0",