feat: enforce iOS AI safety policy and citations

health_app/lib/pages/home/widgets/chat_messages_view.dart

@@ -1296,7 +1296,7 @@ class ChatMessagesView extends ConsumerWidget {
           pushRoute(ref, 'reports');
           break;
         case 'device':
-          pushRoute(ref, 'devices');
+          if (!Platform.isIOS) pushRoute(ref, 'devices');
           break;
         default:
           if (uri.host.isNotEmpty) pushRoute(ref, uri.host);
@@ -2199,12 +2199,13 @@ final _agentActions = <ActiveAgent, List<_AgentAction>>{
       isWide: true,
       route: 'trend',
     ),
-    _AgentAction(
-      label: '蓝牙录入',
-      icon: Icons.bluetooth,
-      isWide: true,
-      route: 'devices',
-    ),
+    if (!Platform.isIOS)
+      _AgentAction(
+        label: '蓝牙录入',
+        icon: Icons.bluetooth,
+        isWide: true,
+        route: 'devices',
+      ),
   ],
   ActiveAgent.diet: [
     _AgentAction(