👔 add oauth callback handler

app/(auth)/auth/callback/[...provider]/page.tsx

@@ -0,0 +1,17 @@
+import React from "react";
+
+interface PageProps {
+  params: { provider: string[] };
+  searchParams: { [key: string]: string | string[] | undefined };
+}
+
+const page = ({ params, searchParams }: PageProps) => {
+  return (
+    <>
+      <h1>Nama provider: {params.provider}</h1>
+      <h1>Data provider: {JSON.stringify(searchParams)}</h1>
+    </>
+  );
+};
+
+export default page;