implement staging workflow

app-expo/.env.staging

@@ -1,3 +1,3 @@
 # 仅 API/WS 基址；TTS 每轮开关由运行时 WS payload 与服务端 ENABLE_TTS 控制（见 api/.env.example）。
-EXPO_PUBLIC_API_URL=https://staging.lifecho.worldsplats.com
-EXPO_PUBLIC_WS_URL=wss://staging.lifecho.worldsplats.com
+EXPO_PUBLIC_API_URL=http://1.15.29.57:8000
+EXPO_PUBLIC_WS_URL=ws://1.15.29.57:8000

app-expo/app.config.ts

@@ -28,6 +28,8 @@ const LOCALES: Record<string, LocaleMessages> = {
 
 const SUPPORTED_LOCALES = ['zh', 'en'] as const;
 const PRIMARY_LOCALE = process.env.EXPO_PUBLIC_PRIMARY_LOCALE ?? 'zh';
+const API_BASE_URL = process.env.EXPO_PUBLIC_API_URL ?? '';
+const ALLOW_ANDROID_CLEARTEXT_TRAFFIC = API_BASE_URL.startsWith('http://');
 
 const PERMISSION_FALLBACKS: Record<PermissionKey, string> = {
   microphone: 'Allow $(PRODUCT_NAME) to access your microphone.',
@@ -149,6 +151,10 @@ export default ({ config }: ConfigContext): ExpoConfig => {
     plugins: [
       // CI/local release: android/app/keystore.properties + store file → release signing; -PversionName/-PversionCode
       './plugins/withAndroidReleaseSigning',
+      [
+        './plugins/withAndroidCleartextTraffic',
+        { enabled: ALLOW_ANDROID_CLEARTEXT_TRAFFIC },
+      ],
       'expo-router',
       [
         'expo-splash-screen',

app-expo/plugins/withAndroidCleartextTraffic.js

@@ -0,0 +1,32 @@
+// @ts-check
+/**
+ * Toggle Android cleartext HTTP traffic from Expo env.
+ *
+ * Staging may use an IP:port HTTP endpoint while production remains HTTPS.
+ */
+const { withAndroidManifest } = require('@expo/config-plugins');
+
+/**
+ * @param {import('expo/config').ExpoConfig} config
+ * @param {{ enabled?: boolean }} props
+ */
+function withAndroidCleartextTraffic(config, props = {}) {
+  return withAndroidManifest(config, (mod) => {
+    const mainApplication = mod.modResults.manifest.application?.[0];
+
+    if (!mainApplication) {
+      throw new Error(
+        '[withAndroidCleartextTraffic] Main application not found in AndroidManifest.xml.',
+      );
+    }
+
+    mainApplication.$ = mainApplication.$ ?? {};
+    mainApplication.$['android:usesCleartextTraffic'] = props.enabled
+      ? 'true'
+      : 'false';
+
+    return mod;
+  });
+}
+
+module.exports = withAndroidCleartextTraffic;