export function getFilename(path: string | undefined) {  if (!path) return ""  const trimmed = path.replace(/[\/\\]+$/, "")  const parts = trimmed.split(/[\/\\]/)  return parts[parts.length - 1] ?? ""} export function getDirectory(path: string | undefined) {  if (!path) return ""  const trimmed = path.replace(/[\/\\]+$/, "")  const parts = trimmed.split(/[\/\\]/)  return parts.slice(0, parts.length - 1).join("/") + "/"} export function getFileExtension(path: string | undefined) {  if (!path) return ""  const parts = path.split(".")  return parts[parts.length - 1]} export function getFilenameTruncated(path: string | undefined, maxLength: number = 20) {  const filename = getFilename(path)  if (filename.length <= maxLength) return filename  const lastDot = filename.lastIndexOf(".")  const ext = lastDot <= 0 ? "" : filename.slice(lastDot)  const available = maxLength - ext.length - 1 // -1 for ellipsis  if (available <= 0) return filename.slice(0, maxLength - 1) + "…"  return filename.slice(0, available) + "…" + ext} export function truncateMiddle(text: string, maxLength: number = 20) {  if (text.length <= maxLength) return text  const available = maxLength - 1 // -1 for ellipsis  const start = Math.ceil(available / 2)  const end = Math.floor(available / 2)  return text.slice(0, start) + "…" + text.slice(-end)}