/**
 * 毫秒转时间格式
 * @example formatDuration(3661000) → "01:01:01"
 */
export const formatDuration = (ms: number): string => {
  const totalSeconds = Math.floor(ms / 1000);
  const hours = Math.floor(totalSeconds / 3600);
  const minutes = Math.floor((totalSeconds % 3600) / 60);
  const seconds = totalSeconds % 60;

  const pad = (n: number) => String(n).padStart(2, "0");
  return `${pad(hours)}:${pad(minutes)}:${pad(seconds)}`;
};