接入原生壳本地通知能力

新增 notification.showLocal HostBridge 契约和 H5 facade

移动端通过 expo-notifications 发送即时本地通知

桌面端通过 Tauri notification 插件发送系统通知

更新壳能力检查、测试、方案文档和共享决策记录

apps/mobile-shell/scripts/check-config.mjs

@@ -133,6 +133,7 @@ for (const dependency of [
   'expo-file-system',
   'expo-image-picker',
   'expo-network',
+  'expo-notifications',
   'expo-sharing',
 ]) {
   if (!packageConfig.dependencies?.[dependency]) {
@@ -160,12 +161,31 @@ if (Array.isArray(imagePickerPlugin)) {
   }
 }
 
+const notificationsPlugin = appConfig.plugins?.find((plugin) =>
+  Array.isArray(plugin) ? plugin[0] === 'expo-notifications' : plugin === 'expo-notifications',
+);
+if (!notificationsPlugin) {
+  throw new Error('mobile shell notifications plugin is missing');
+}
+
+if (Array.isArray(notificationsPlugin)) {
+  const pluginOptions = notificationsPlugin[1] ?? {};
+  if (pluginOptions.enableBackgroundRemoteNotifications !== false) {
+    throw new Error('mobile shell must not enable background remote notifications');
+  }
+}
+
 for (const snippet of [
   'file.exportText',
   'file.exportImage',
   'file.importImage',
+  'notification.showLocal',
   'network.status',
   'getMobileNetworkStatus',
+  'Notifications.scheduleNotificationAsync',
+  'Notifications.setNotificationChannelAsync',
+  'Notifications.getPermissionsAsync',
+  'Notifications.requestPermissionsAsync',
   'Sharing.shareAsync',
   'ImagePicker.launchImageLibraryAsync',
   'ImagePicker.requestMediaLibraryPermissionsAsync',
@@ -202,6 +222,7 @@ for (const capability of [
   'file.exportImage',
   'file.importImage',
   'haptics.impact',
+  'notification.showLocal',
 ]) {
   if (!mobileCapabilitySet.has(capability)) {
     throw new Error(`mobile shell capabilities missing ${capability}`);