/** Internal helper exposed for tests + future programmatic callers:
 *  resolve the registry file location, ensuring the parent dir
 *  exists. Idempotent. */
export declare function ensureRegistryDir(registryFile: string): void;
/** Internal helper for tests: locate the registry file under the
 *  given project root. Thin wrapper so tests can stub the resolution. */
export declare function registryFileFor(projectRoot: string): string;