✨ Add basic credentials authentication

src/pages/auth/[...nextauth].ts

@@ -0,0 +1,7 @@
+import { NextApiRequest, NextApiResponse } from 'next';
+import NextAuth from 'next-auth';
+import { constructAuthOptions } from '~/server/auth';
+
+export default async function auth(req: NextApiRequest, res: NextApiResponse) {
+  return await NextAuth(req, res, constructAuthOptions(req, res));
+}