/**
 * crewx doctor handler.
 * Performs system diagnosis: checks config, CLI tools, and environment.
 *
 * Usage:
 *   crewx doctor                  Run full diagnosis
 *   crewx doctor --config <path>  Use specific config file
 */
/**
 * Handle `crewx doctor` command.
 */
export declare function handleDoctor(args: string[]): Promise<void>;