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/types/app.ts

@@ -27,7 +27,7 @@ export type CardDeliveryStage =
   | 'ready-for-pickup'
   | 'delivered';
 
-export type LoginRole = 'User' | 'Employee' | 'Agent';
+export type LoginRole = 'User' | 'Agent';
 
 export interface AuthTokens {
   accessToken: string;
@@ -57,6 +57,23 @@ export interface UserProfile {
   notifications: NotificationPreference;
 }
 
+export type NotificationCategory =
+  | 'transaction'
+  | 'security'
+  | 'offer'
+  | 'reminder'
+  | 'system';
+
+export interface AppNotification {
+  id: string;
+  category: NotificationCategory;
+  title: string;
+  body: string;
+  /** ISO timestamp of when the notification was raised. */
+  createdAt: string;
+  read: boolean;
+}
+
 export interface AccountSummary {
   id: string;
   type: AccountType;