fix(platform): improve web compatibility and optimize module loading

Refactor core services and components to prevent runtime errors on web platforms and optimize build environment.

- Update `Dockerfile.web` to use Node 25 for the build stage.
- Implement lazy loading for `expo-media-library` and `expo-file-system` in `ImageGallery` to prevent crashes on web where these native modules are unavailable.
- Refactor `CallKeepServiceImpl` to use dynamic imports for `expo-callkit-telecom`, ensuring the service remains compatible with web environments.

src/components/common/ImageGallery.tsx

@@ -30,8 +30,6 @@ import Animated, {
 } from 'react-native-reanimated';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
-import * as MediaLibrary from 'expo-media-library';
-import { File, Paths } from 'expo-file-system';
 import { spacing, borderRadius, fontSizes } from '../../theme';
 import { blurActiveElement } from '../../infrastructure/platform';
 
@@ -203,7 +201,10 @@ export const ImageGallery: React.FC<ImageGalleryProps> = ({
 
   // 保存图片到本地相册
   const handleSaveImage = useCallback(async () => {
-    if (!currentImage || saving) return;
+    if (!currentImage || saving || Platform.OS === 'web') return;
+
+    const MediaLibrary = require('expo-media-library') as typeof import('expo-media-library');
+    const { File, Paths } = require('expo-file-system') as typeof import('expo-file-system');
 
     const { status } = await MediaLibrary.requestPermissionsAsync();
     if (status !== 'granted') {