Method cleanup

backend/api/src/postgres-proxy/utils/cache.util.ts:182–198

* Cleanup expired entries

()

   * Cleanup expired entries
   */
  cleanup(): number {
    let removedCount = 0;
    const now = Date.now();

    for (const [key, entry] of this.cache.entries()) {
      if (now - entry.timestamp > this.options.ttl) {
        this.cache.delete(key);
        removedCount++;
      }
    }

    if (removedCount > 0 && this.options.enableStats) {
      this.logger.log(`Cleaned up ${removedCount} expired cache entries`);
    }

    return removedCount;
  }

  /**
   * Evict least recently used entry