/**
 * Normalizes a domain-like string into a comparable hostname form.
 *
 * The returned value is lowercased and stripped to hostname only
 * (protocol, path, query, hash, and port are removed).
 *
 * @param rawDomain - Raw domain value (for example `my-agent.com` or `https://my-agent.com/path`).
 * @returns Normalized hostname or `null` when the value cannot be normalized.
 *
 * @private utility for host/domain matching
 */
export declare function normalizeDomainForMatching(rawDomain: string): string | null;