const hits = new Map<string, { count: number; time: number }>();
export function allow(bucket: string, key: string, limit = 10, windowMs = 60_000) {
  const k = `${bucket}:${key}`;
  const now = Date.now();
  const entry = hits.get(k);
  if (!entry || now - entry.time > windowMs) {
    hits.set(k, { count: 1, time: now });
    return true;
  }
  if (entry.count >= limit) return false;
  entry.count++;
  return true;
}