/**
 * Heartbeat Command — Autonomous health checker for the Memoire design engine.
 * Checks spec staleness, token orphans, generation drift, atomic integrity,
 * and Code Connect coverage. Writes results to .memoire/heartbeat.json.
 */
import type { Command } from "commander";
import type { MemoireEngine } from "../engine/core.js";
export declare function registerHeartbeatCommand(program: Command, engine: MemoireEngine): void;