woof. killed useClient and use nextjs api

app/api/auth/logout/route.ts

@@ -0,0 +1,7 @@
+import { NextResponse } from 'next/server';
+import { cookies } from 'next/headers';
+
+export async function POST() {
+  cookies().delete('session_token');
+  return NextResponse.json({ success: true });
+}