protect /setup and use links for button

src/app/setup/layout.tsx

@@ -1,4 +1,7 @@
+import { verifySession } from "@app/lib/auth/verifySession";
 import { Metadata } from "next";
+import { redirect } from "next/navigation";
+import { cache } from "react";
 
 export const metadata: Metadata = {
     title: `Setup - Pangolin`,
@@ -10,5 +13,12 @@ export default async function SetupLayout({
 }: {
     children: React.ReactNode;
 }) {
+    const getUser = cache(verifySession);
+    const user = await getUser();
+
+    if (!user) {
+        redirect("/");
+    }
+
     return <div className="mt-32">{children}</div>;
 }