/**
 * Compiles and validates the Bernova configuration from bernova.config.json
 * Sets up TypeScript path mapping if configured
 *
 * @param {Object} params - The parameters object
 * @param {string} params.dir - The project directory containing the configuration file
 * @returns {Promise<Object>} Configuration object containing themes and provider settings
 * @throws {Error} When configuration file is invalid or missing
 */
export function compileConfig({ dir }: {
    dir: string;
}): Promise<any>;