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(

health_app/lib/pages/settings/settings_pages.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
@@ -49,11 +51,12 @@ class SettingsPage extends ConsumerWidget {
                       title: '长辈模式',
                       onTap: () => pushRoute(ref, 'elderMode'),
                     ),
-                    _SettingsTile(
-                      icon: LucideIcons.bluetooth,
-                      title: '蓝牙设备',
-                      onTap: () => pushRoute(ref, 'devices'),
-                    ),
+                    if (!Platform.isIOS)
+                      _SettingsTile(
+                        icon: LucideIcons.bluetooth,
+                        title: '蓝牙设备',
+                        onTap: () => pushRoute(ref, 'devices'),
+                      ),
                     _SettingsTile(
                       icon: LucideIcons.bell,
                       title: '消息通知',