export function formatDateTime(value?: string | null) {
  if (!value) return "暂未设置";

  return new Intl.DateTimeFormat("zh-CN", {
    month: "2-digit",
    day: "2-digit",
    hour: "2-digit",
    minute: "2-digit"
  }).format(new Date(value));
}

export function roleNames(roles: { name: string }[]) {
  return roles.map((role) => role.name).join("、") || "未分配角色";
}