feat: align iOS client safety and consent experience

health_app/lib/pages/home/home_page.dart

@@ -438,9 +438,9 @@ class _HomePageState extends ConsumerState<HomePage>
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
-          const SizedBox(height: 8),
+          const SizedBox(height: 4),
           _buildAgentBar(),
-          const SizedBox(height: 12),
+          const SizedBox(height: 5),
           if (_pickedImagePath != null) _buildImagePreview(),
           _buildInputBar(),
         ],
@@ -490,13 +490,13 @@ class _HomePageState extends ConsumerState<HomePage>
       chatProvider.select((state) => state.isStreaming),
     );
     return Padding(
-      padding: const EdgeInsets.fromLTRB(12, 0, 12, 10),
+      padding: const EdgeInsets.fromLTRB(12, 0, 12, 6),
       child: Container(
         padding: EdgeInsets.fromLTRB(
           6,
-          elderMode ? 7 : 5,
+          elderMode ? 5 : 3,
           6,
-          elderMode ? 7 : 5,
+          elderMode ? 5 : 3,
         ),
         decoration: BoxDecoration(
           color: Colors.white,
@@ -540,7 +540,7 @@ class _HomePageState extends ConsumerState<HomePage>
               isDense: true,
               contentPadding: EdgeInsets.symmetric(
                 horizontal: 4,
-                vertical: elderMode ? 15 : 12,
+                vertical: elderMode ? 12 : 9,
               ),
               border: InputBorder.none,
               enabledBorder: InputBorder.none,
@@ -971,7 +971,7 @@ class _VoiceHoldSurface extends StatelessWidget {
     return Container(
       padding: EdgeInsets.symmetric(
         horizontal: 4,
-        vertical: elderMode ? 14 : 11,
+        vertical: elderMode ? 12 : 9,
       ),
       alignment: Alignment.center,
       child: Text(

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

@@ -1276,7 +1276,6 @@ class ChatMessagesView extends ConsumerWidget {
   /// 处理 AI 回复里的 markdown 链接点击：
   /// - app://diet → 触发拍照/相册选择，跳到饮食拍照流程
   /// - app://report → 跳到报告列表（用户可在那里上传新报告）
-  /// - app://device → 跳到蓝牙设备页
   /// - 其他 app://xxx → 当作 route name 直接跳
   static void _handleMarkdownLink(
     BuildContext context,
@@ -1296,8 +1295,7 @@ class ChatMessagesView extends ConsumerWidget {
           pushRoute(ref, 'reports');
           break;
         case 'device':
-          pushRoute(ref, 'devices');
-          break;
+          return;
         default:
           if (uri.host.isNotEmpty) pushRoute(ref, uri.host);
       }
@@ -2199,12 +2197,6 @@ final _agentActions = <ActiveAgent, List<_AgentAction>>{
       isWide: true,
       route: 'trend',
     ),
-    _AgentAction(
-      label: '蓝牙录入',
-      icon: Icons.bluetooth,
-      isWide: true,
-      route: 'devices',
-    ),
   ],
   ActiveAgent.diet: [
     _AgentAction(

health_app/lib/pages/settings/ai_consent_details_page.dart

@@ -32,7 +32,15 @@ class AiConsentDetailsPage extends ConsumerWidget {
     );
     if (confirmed != true || !context.mounted) return;
 
-    await ref.read(aiConsentProvider.notifier).revoke(userId);
+    final revoked = await ref.read(aiConsentProvider.notifier).revoke(userId);
+    if (!revoked) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('Authorization could not be revoked.')),
+        );
+      }
+      return;
+    }
     await ref.read(authProvider.notifier).logout();
   }
 
@@ -59,6 +67,7 @@ class AiConsentDetailsPage extends ConsumerWidget {
             color: AppColors.textPrimary,
           ),
         ),
+        centerTitle: true,
       ),
       body: SafeArea(
         child: SingleChildScrollView(
@@ -91,8 +100,11 @@ class AiConsentDetailsPage extends ConsumerWidget {
                 SizedBox(
                   width: double.infinity,
                   child: OutlinedButton(
-                    onPressed: () => _revoke(context, ref),
+                    onPressed: consent.isSaving
+                        ? null
+                        : () => _revoke(context, ref),
                     style: OutlinedButton.styleFrom(
+                      backgroundColor: Colors.white,
                       foregroundColor: AppColors.error,
                       side: BorderSide(
                         color: AppColors.error.withValues(alpha: 0.4),

health_app/lib/pages/settings/settings_pages.dart

@@ -1,4 +1,3 @@
-import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
@@ -56,13 +55,11 @@ class SettingsPage extends ConsumerWidget {
                       title: '长辈模式',
                       onTap: () => pushRoute(ref, 'elderMode'),
                     ),
-                    if (!Platform.isIOS)
-                      // iOS 审核版：蓝牙设备入口已移除
-                      _SettingsTile(
-                        icon: LucideIcons.bell,
-                        title: '消息通知',
-                        onTap: () => pushRoute(ref, 'notificationPrefs'),
-                      ),
+                    _SettingsTile(
+                      icon: LucideIcons.bell,
+                      title: '消息通知',
+                      onTap: () => pushRoute(ref, 'notificationPrefs'),
+                    ),
                     _SettingsTile(
                       icon: LucideIcons.info,
                       title: '关于小脉健康',