/** Format seconds as m:ss. Shared by the media player and the player queue. */
export function fmt(s: number): string {
  if (!isFinite(s)) return "0:00";
  const m = Math.floor(s / 60);
  const sec = Math.floor(s % 60);
  return `${m}:${sec.toString().padStart(2, "0")}`;
}