Method has

src/context/storage/CacheStore.ts:74–88

* 检查缓存项是否存在

(key: string)

   * 检查缓存项是否存在
   */
  has(key: string): boolean {
    const item = this.cache.get(key);

    if (!item) {
      return false;
    }

    // 检查是否过期
    if (Date.now() - item.timestamp > item.ttl) {
      this.cache.delete(key);
      return false;
    }

    return true;
  }

  /**
   * 删除缓存项