initial commit, boilerplate stuff

src/pages/RestrictedGuest.tsx

@@ -0,0 +1,9 @@
+import { Navigate } from "react-router";
+
+import { useAuth } from "../hooks/useAuth.ts";
+
+export function RestrictedGuest({ children }: { children: React.ReactNode }) {
+  const { user } = useAuth();
+
+  return user ? <Navigate to="/" /> : <>{children}</>;
+}