Initial project scaffold: FastAPI + React/Vite + PostgreSQL SaaS starter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/App.tsx

@@ -0,0 +1,27 @@
+import { Routes, Route, Navigate } from "react-router-dom";
+import LoginPage from "./pages/LoginPage";
+import RegisterPage from "./pages/RegisterPage";
+import DashboardPage from "./pages/DashboardPage";
+import { useAuth } from "./hooks/useAuth";
+
+function PrivateRoute({ children }: { children: React.ReactNode }) {
+  const { token } = useAuth();
+  return token ? <>{children}</> : <Navigate to="/login" replace />;
+}
+
+export default function App() {
+  return (
+    <Routes>
+      <Route path="/login" element={<LoginPage />} />
+      <Route path="/register" element={<RegisterPage />} />
+      <Route
+        path="/"
+        element={
+          <PrivateRoute>
+            <DashboardPage />
+          </PrivateRoute>
+        }
+      />
+    </Routes>
+  );
+}