import type { SinkConfig } from './types.js';
/** Thrown when a config file is present but cannot be loaded or parsed. */
export declare class ConfigError extends Error {
    constructor(message: string);
}
declare const DEFAULT_CONFIG: SinkConfig;
/**
 * Load config with merge order: defaults -> config file -> CLI overrides.
 */
export declare function loadConfig(options?: {
    configPath?: string;
    overrides?: Partial<SinkConfig>;
}): Promise<SinkConfig>;
export { DEFAULT_CONFIG };