/**
 * Config loader — merge hierarchy: defaults → user (~/.config/ghls) → repo (.ghls.yml) → CLI flags.
 */
import { type GhlsConfig } from './schema.js';
declare const USER_CONFIG_PATH: string;
declare const REPO_CONFIG_NAME = ".ghls.yml";
/**
 * Load merged config. Order: defaults < user config < repo config < overrides.
 */
export declare function loadConfig(repoRoot?: string, overrides?: Partial<GhlsConfig>): Promise<GhlsConfig>;
/**
 * Write repo-level config file.
 */
export declare function writeRepoConfig(repoRoot: string, config: Partial<GhlsConfig>): Promise<string>;
/**
 * Write user-level config file.
 */
export declare function writeUserConfig(config: Partial<GhlsConfig>): Promise<string>;
/**
 * Check if repo config exists.
 */
export declare function hasRepoConfig(repoRoot: string): Promise<boolean>;
export { REPO_CONFIG_NAME, USER_CONFIG_PATH };
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