export function formatTime(ms: number): string {
  const seconds = Math.max(0, Math.floor(ms / 1000));
  return `${Math.floor(seconds / 60)}:${String(seconds % 60).padStart(2, '0')}`;
}

export function formatBytes(bytes?: number): string {
  if (bytes === undefined) return '––';
  return bytes >= 1024 * 1024
    ? `${(bytes / (1024 * 1024)).toFixed(1)} MiB`
    : `${(bytes / 1024).toFixed(1)} KiB`;
}