Initial commit: HealthManager full-stack health management platform

Backend: .NET 10 + PostgreSQL + EF Core + JWT + SignalR
Frontend patient: React 19 + TypeScript + Vite (mobile H5)
Frontend doctor: React 19 + TypeScript + Vite (desktop web)

frontend-patient/src/App.tsx

@@ -0,0 +1,6 @@
+import { RouterProvider } from 'react-router-dom';
+import { router } from './router';
+
+export function App() {
+  return <RouterProvider router={router} />;
+}