export function formatDate(value?: string): string | null {
  if (!value) return null;
  const date = new Date(value);
  if (isNaN(date.getTime())) return null;
  return new Intl.DateTimeFormat("en-GB", {
    day: "numeric",
    month: "short",
    year: "numeric",
  }).format(date);
}

export function formatDuration(ms: number): string {
  const total = Math.round(ms / 1000);
  const minutes = Math.floor(total / 60);
  const seconds = total % 60;
  return minutes === 0 ? `${seconds}s` : `${minutes}m ${seconds}s`;
}