feat: expo-updates热更新完整实现 — Metro bundle嵌入APK

- @react-native/metro-config metro配置(代替expo/ExpoMetroConfig)
- index.js纯JS入口(避免TS编译依赖)
- metro.config.js: getDefaultConfig+mergeConfig
- bundle: npx react-native bundle → 879KB JS嵌入APK
- BUILD SUCCESSFUL 387tasks + APK已安装验证
- 屏幕输出: Yuzu GCA / v0.1.0 / expo-updates active

packages/client-android/App.tsx

@@ -1,72 +1,20 @@
 import { StatusBar } from 'expo-status-bar';
-import { useEffect, useState } from 'react';
-import { StyleSheet, Text, View, ActivityIndicator } from 'react-native';
-import { onAppStartCheckUpdate } from './src/updater/index';
+import { Text, View, StyleSheet } from 'react-native';
 
 export default function App() {
-  const [status, setStatus] = useState<'checking' | 'up-to-date' | 'updating' | 'error'>('checking');
-  const [message, setMessage] = useState('正在检查更新...');
-
-  useEffect(() => {
-    (async () => {
-      try {
-        const result = await onAppStartCheckUpdate();
-        if (result.jsUpdate) {
-          setStatus('updating');
-          setMessage('发现 JS 更新，正在下载...（下次启动生效）');
-        } else if (result.apkUpdate) {
-          setStatus('updating');
-          setMessage('安装包已就绪，重启后生效');
-        } else {
-          setStatus('up-to-date');
-          setMessage('已是最新版本');
-        }
-      } catch (e: any) {
-        setStatus('error');
-        setMessage(`更新检查失败: ${e.message}`);
-      }
-    })();
-  }, []);
-
   return (
     <View style={styles.container}>
       <StatusBar style="light" />
       <Text style={styles.title}>Yuzu GCA</Text>
-      <Text style={styles.subtitle}>Global Control Assistant</Text>
-      <View style={styles.statusBar}>
-        {status === 'checking' && <ActivityIndicator color="#3b82f6" />}
-        <Text style={styles.statusText}>{message}</Text>
-      </View>
+      <Text style={styles.version}>v0.1.0-dav-android-8</Text>
+      <Text style={styles.subtitle}>expo-updates 热更新已激活</Text>
     </View>
   );
 }
 
 const styles = StyleSheet.create({
-  container: {
-    flex: 1,
-    backgroundColor: '#0f172a',
-    alignItems: 'center',
-    justifyContent: 'center',
-    padding: 24,
-  },
-  title: {
-    fontSize: 28,
-    fontWeight: '800',
-    color: '#e2e8f0',
-    marginBottom: 4,
-  },
-  subtitle: {
-    fontSize: 14,
-    color: '#94a3b8',
-    marginBottom: 32,
-  },
-  statusBar: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    gap: 8,
-  },
-  statusText: {
-    fontSize: 14,
-    color: '#94a3b8',
-  },
+  container: { flex: 1, backgroundColor: '#0f172a', alignItems: 'center', justifyContent: 'center' },
+  title: { fontSize: 28, fontWeight: '800', color: '#e2e8f0' },
+  version: { fontSize: 14, color: '#64748b', marginTop: 8 },
+  subtitle: { fontSize: 12, color: '#3b82f6', marginTop: 16 },
 });