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>

src/modules/services/screens/CertificateListScreen.tsx

@@ -24,7 +24,7 @@ export default function CertificateListScreen({ route }: Props) {
   }));
 
   const handleDownload = (docName: string) => {
-    toast('Download Started', 'success', `${docName} is being securely downloaded to your device.`);
+    toast('Download started', 'success', `${docName} is being saved securely to your device.`);
   };
 
   return (