// lib/json.ts
export function json(data: unknown, init?: ResponseInit) {
  return new Response(
    JSON.stringify(data, (_k, v) => (typeof v === "bigint" ? v.toString() : v)),
    {
      ...init,
      headers: {
        "content-type": "application/json; charset=utf-8",
        ...(init?.headers || {}),
      },
    },
  );
}