Fix mobile tracked as regular files (not submodule)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mobile/App.tsx

@@ -0,0 +1,49 @@
+import React, { useEffect, useRef } from 'react';
+import { NavigationContainer } from '@react-navigation/native';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import * as Notifications from 'expo-notifications';
+import { RootNavigator } from './src/navigation/RootNavigator';
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      retry: 1,
+      staleTime: 1000 * 60 * 5, // 5 minutes
+    },
+  },
+});
+
+export default function App() {
+  const notificationListener = useRef<Notifications.EventSubscription>();
+  const responseListener = useRef<Notifications.EventSubscription>();
+
+  useEffect(() => {
+    // Handle notifications received while app is in foreground
+    notificationListener.current = Notifications.addNotificationReceivedListener(
+      (notification) => {
+        console.log('Notification received:', notification);
+      },
+    );
+
+    // Handle notification tap
+    responseListener.current = Notifications.addNotificationResponseReceivedListener(
+      (response) => {
+        console.log('Notification tapped:', response);
+        // TODO: navigate to relevant screen based on response.notification.request.content.data
+      },
+    );
+
+    return () => {
+      notificationListener.current?.remove();
+      responseListener.current?.remove();
+    };
+  }, []);
+
+  return (
+    <QueryClientProvider client={queryClient}>
+      <NavigationContainer>
+        <RootNavigator />
+      </NavigationContainer>
+    </QueryClientProvider>
+  );
+}