feat: align iOS client safety and consent experience

health_app/lib/app.dart

@@ -8,9 +8,11 @@ import 'core/app_theme.dart';
 import 'core/elder_mode_scope.dart';
 import 'core/navigation_provider.dart';
 import 'pages/splash_page.dart';
+import 'providers/ai_consent_provider.dart';
 import 'providers/auth_provider.dart';
 import 'providers/data_providers.dart';
 import 'providers/elder_mode_provider.dart';
+import 'widgets/ai_consent_gate.dart';
 
 /// 健康管家 App 根组件
 class HealthApp extends ConsumerWidget {
@@ -51,7 +53,7 @@ class HealthApp extends ConsumerWidget {
               child: GestureDetector(
                 behavior: HitTestBehavior.translucent,
                 onTap: () => FocusManager.instance.primaryFocus?.unfocus(),
-                child: _BootGate(child: child!),
+                child: AiConsentGate(child: _BootGate(child: child!)),
               ),
             ),
           ),
@@ -71,6 +73,15 @@ final appReadyProvider = Provider<bool>((ref) {
   if (currentRoute == 'login') return false; // 等根导航切到已登录首页后再撤 Splash
   final role = auth.user?.role ?? 'User';
   if (role != 'User') return true; // 医生/管理员首页不依赖今日健康卡
+  final consent = ref.watch(aiConsentProvider);
+  if (consent.userId == auth.user?.id &&
+      !consent.isLoading &&
+      !consent.granted) {
+    return true;
+  }
+  if (currentRoute == 'aiConsentDetails' || currentRoute == 'staticText') {
+    return true;
+  }
   if (!ref.watch(elderModeProvider).isLoaded) return false;
   // 普通用户：等今日健康卡片数据（成功或失败都算就绪，避免卡死）
   final health = ref.watch(latestHealthProvider);