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/app.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+import 'core/app_router.dart';
+import 'core/app_theme.dart';
+
+/// 健康管家 App 根组件
+class HealthApp extends StatelessWidget {
+  const HealthApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp.router(
+      title: '健康管家',
+      debugShowCheckedModeBanner: false,
+      theme: AppTheme.lightTheme,
+      routerConfig: AppRouter.router,
+    );
+  }
+}