Initial commit: 网页联机狼人杀（FastAPI+WebSocket 后端 / React+TS+Sass 前端）

frontend/src/App.tsx

@@ -0,0 +1,14 @@
+import { BrowserRouter, Route, Routes } from 'react-router-dom'
+import Lobby from './pages/Lobby'
+import Room from './pages/Room'
+
+export default function App() {
+  return (
+    <BrowserRouter>
+      <Routes>
+        <Route path="/" element={<Lobby />} />
+        <Route path="/room/:code" element={<Room />} />
+      </Routes>
+    </BrowserRouter>
+  )
+}