app/(arena)/play/[nodeId]/page.tsx

import ArenaClient from "./ArenaClient";

export function generateStaticParams() {
  const nodeIds = [
    ...Array.from({ length: 15 }, (_, i) => `med-n${i + 1}`),
    ...Array.from({ length: 15 }, (_, i) => `calc-n${i + 1}`),
    ...Array.from({ length: 15 }, (_, i) => `demo-n${i + 1}`),
  ];
  return nodeIds.map((nodeId) => ({ nodeId }));
}

export default function PlayPage() {
  return <ArenaClient />;
}