refactor: move auth check into pages

src/app/page.tsx

@@ -1,3 +1,9 @@
-export default function Home() {
-  return <div></div>;
+import { auth } from '@/auth';
+import { redirect } from 'next/navigation';
+
+export default async function Home() {
+  const session = await auth();
+
+  if (!session?.user) redirect('/login');
+  else redirect('/home');
 }