Initial commit: 健康管家 AI 健康陪伴助手

- Backend: .NET 10 Minimal API + EF Core + PostgreSQL
- Frontend: Flutter + Riverpod + GoRouter + Dio
- AI: DeepSeek LLM + Qwen VLM (OpenAI-compatible)
- Auth: SMS + JWT (access/refresh tokens)
- Features: AI chat, health tracking, medication management, diet analysis, exercise plans, doctor consultations, report analysis

health_app/lib/pages/settings/settings_pages.dart

@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
+import '../../providers/auth_provider.dart';
+
+/// 设置页
+class SettingsPage extends ConsumerWidget {
+  const SettingsPage({super.key});
+  @override
+  Widget build(BuildContext context, WidgetRef ref) => Scaffold(
+    appBar: AppBar(title: const Text('设置')),
+    body: ListView(children: [
+      _SetItem(icon: Icons.shield, title: '隐私保护中心', onTap: () => context.push('/page/privacy')),
+      _SetItem(icon: Icons.notifications, title: '通知偏好', onTap: () => context.push('/settings/notifications')),
+      _SetItem(icon: Icons.text_fields, title: '字体大小', trailing: _FontSlider()),
+      _SetItem(icon: Icons.article, title: '协议与公告', onTap: () => context.push('/page/terms')),
+      _SetItem(icon: Icons.info, title: '关于', onTap: () => context.push('/page/about')),
+      const Divider(),
+      _SetItem(icon: Icons.logout, title: '退出登录', textColor: const Color(0xFFE53935), onTap: () async {
+        final ok = await showDialog<bool>(context: context, builder: (ctx) => AlertDialog(
+          title: const Text('退出登录'), content: const Text('确定退出？'),
+          actions: [TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('取消')), TextButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('确定'))]));
+        if (ok == true) { await ref.read(authProvider.notifier).logout(); if (context.mounted) context.go('/login'); }
+      }),
+    ]),
+  );
+}
+
+class _SetItem extends StatelessWidget {
+  final IconData icon; final String title; final VoidCallback? onTap; final Widget? trailing; final Color? textColor;
+  const _SetItem({required this.icon, required this.title, this.onTap, this.trailing, this.textColor});
+  @override
+  Widget build(BuildContext context) => ListTile(leading: Icon(icon, color: const Color(0xFF666666)), title: Text(title, style: TextStyle(fontSize: 16, color: textColor)), trailing: trailing ?? const Icon(Icons.chevron_right, size: 20), onTap: onTap);
+}
+
+class _FontSlider extends StatefulWidget {
+  @override State<_FontSlider> createState() => _FontSliderState();
+}
+class _FontSliderState extends State<_FontSlider> {
+  double _value = 1.0;
+  @override Widget build(BuildContext context) => SizedBox(width: 120, child: Slider(value: _value, min: 0.8, max: 1.6, divisions: 8, label: '${_value.toStringAsFixed(1)}x', onChanged: (v) => setState(() => _value = v)));
+}
+
+/// 通知偏好页
+class NotificationPrefsPage extends ConsumerWidget {
+  const NotificationPrefsPage({super.key});
+  @override
+  Widget build(BuildContext context, WidgetRef ref) => Scaffold(
+    appBar: AppBar(title: const Text('通知偏好')),
+    body: ListView(children: [
+      _SwitchTile(icon: Icons.medication, title: '用药提醒'),
+      _SwitchTile(icon: Icons.calendar_month, title: '复查提醒'),
+      _SwitchTile(icon: Icons.chat, title: '医生回复'),
+      _SwitchTile(icon: Icons.warning_amber, title: '异常警告'),
+    ]),
+  );
+}
+
+class _SwitchTile extends StatefulWidget {
+  final IconData icon; final String title;
+  const _SwitchTile({required this.icon, required this.title});
+  @override State<_SwitchTile> createState() => _SwitchTileState();
+}
+class _SwitchTileState extends State<_SwitchTile> {
+  bool _on = true;
+  @override Widget build(BuildContext context) => SwitchListTile(secondary: Icon(widget.icon), title: Text(widget.title), value: _on, onChanged: (v) => setState(() => _on = v));
+}