feat(profile): add data storage settings screen with cache management

Add DataStorageScreen for managing media cache and storage:
- Display cache statistics (image/video/audio counts and sizes)
- Show AsyncStorage usage information
- Add clear all cache functionality
- Add cleanup expired cache option (7 days threshold)
- Add storage usage breakdown by category
- Add "Last cleaned" timestamp display

Also fix MediaCacheManager to skip native cache operations on web platform:
- Return original URI directly on web without caching
- Skip directory creation on web
- Skip file existence checks on web
- Skip startup and periodic cleanup on web

app/(app)/(tabs)/profile/data-storage.tsx

@@ -0,0 +1,5 @@
+import { DataStorageScreen } from '../../../../src/screens/profile';
+
+export default function DataStorageRoute() {
+  return <DataStorageScreen />;
+}