/**
 * Formats a timestamp as a relative time string (e.g., "10s ago", "5m ago", "2h ago")
 * @param timestamp - Unix timestamp in milliseconds
 * @returns Formatted relative time string
 */
export function formatRelativeTime(timestamp: number): string {
  const now = Date.now();
  const diff = now - timestamp;
  const seconds = Math.floor(diff / 1000);

  if (seconds < 60) {
    return `${seconds}s ago`;
  }

  const minutes = Math.floor(seconds / 60);
  if (minutes < 60) {
    return `${minutes}m ago`;
  }

  const hours = Math.floor(minutes / 60);
  if (hours < 24) {
    return `${hours}h ago`;
  }

  const days = Math.floor(hours / 24);
  return `${days}d ago`;
}