/**
 * Discard the fresh install directory after a step that runs before
 * activation failed, then rethrow that failure. Nothing outside the
 * directory has been touched yet, so removing it leaves the global
 * installation exactly as the command found it.
 *
 * A removal that fails is reported alongside the original failure, which
 * stays the aggregate's `cause` and lends it its `code`: the directory it
 * left behind is the only trace of the aborted install, so the user has to
 * hear about it, but the install still failed for the reason it reports.
 */
export declare function cleanupFailedGlobalInstall(installDir: string, originalError: unknown): Promise<never>;