/** * Shared helpers for classifying Node.js filesystem errors. * * These were previously duplicated verbatim across several modules. Keeping a * single source of truth avoids drift when the set of tolerated error codes * changes. */ /** * True when the error is a "file or directory does not exist" (ENOENT) error. */export function isFileNotFoundError(error: unknown): boolean {  return (    error instanceof Error &&    "code" in error &&    (error as NodeJS.ErrnoException).code === "ENOENT"  );} /** * True when the error is one that can normally occur if a file or directory * changes shape while a directory tree is being scanned (removed, replaced by a * directory, or replaced by a non-directory). Callers treat these as "skip this * entry" rather than as fatal. */export function isExpectedSnapshotRaceError(error: unknown): boolean {  if (!(error instanceof Error) || !("code" in error)) {    return false;  }   return ["EISDIR", "ENOENT", "ENOTDIR"].includes(    (error as NodeJS.ErrnoException).code ?? "",  );}