/**
 * If running as root (via sudo), restore ownership of a file or directory
 * to the original user (SUDO_UID/SUDO_GID).
 */
export declare function fixOwnerSync(path: string): void;
/**
 * Async version of restore ownership.
 */
export declare function fixOwner(path: string): Promise<void>;
/**
 * Formats and prints a helpful error message for EACCES (permission denied)
 * errors on clai's configuration/storage paths and exits the process.
 */
export declare function handlePermissionError(err: any): never;
export declare function safeExistsSync(filePath: string): boolean;
export declare function safeExists(filePath: string): Promise<boolean>;