chore(mobile): upgrade to Expo SDK 56

Bump expo, react, react-native, and all expo-* / react-native-* peers to
the SDK 56 line via expo install --fix, adding expo-splash-screen and
expo-system-ui for config plugins the SDK split out of core. Bump
@bacons/apple-targets, react-native-view-shot, and other native modules
to versions compatible with React Native 0.85 and the new architecture.

Remove @react-navigation/* direct dependencies and route their hooks
through expo-router, which is no longer compatible with react-navigation
as of SDK 56. Fix RN 0.85's removed StyleSheet.absoluteFillObject (use
absoluteFill) and react-native-view-shot 5.x's ViewShotRef type across
call sites. Downgrade eslint-plugin-react-hooks v7's new React Compiler
era rules to warnings pending a dedicated refactor, and repair Jest
fallout from the jest-expo/reanimated/worklets/expo-media-library bumps.

Regenerate the committed ios/ and android/ native projects with
`expo prebuild --clean` (required for @bacons/apple-targets 5.x) against
the production release channel, and document that requirement.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/mobile/src/test/setup.ts

@@ -50,8 +50,6 @@ jest.mock('@supabase/supabase-js', () => {
     };
 });
 
-jest.mock('react-native/Libraries/Animated/NativeAnimatedHelper', () => ({}), { virtual: true });
-
 jest.mock('react-native-reanimated', () => {
     // eslint-disable-next-line @typescript-eslint/no-var-requires
     const Reanimated = require('react-native-reanimated/mock');
@@ -103,6 +101,11 @@ jest.mock('expo-image-picker', () => ({
     },
 }));
 
+jest.mock('expo-media-library', () => ({
+    usePermissions: jest.fn(() => [{ granted: true }, jest.fn(async () => ({ granted: true }))]),
+    createAssetAsync: jest.fn(async () => ({ id: 'mock-asset-id' })),
+}));
+
 jest.mock('expo-file-system/legacy', () => ({
     readAsStringAsync: jest.fn(async () => ''),
     EncodingType: {