/**
 * v2.15.0 follow-up — G11: fork sync CLI.
 *
 *   - `peaks fork status`               — show baseline + drift + last sync
 *   - `peaks fork upstream-check`       — recommend next stable tag
 *   - `peaks fork sync-plan`            — generate a sync plan
 *   - `peaks fork sync`                 — record a sync execution
 *   - `peaks fork sync-verify`          — mark a sync as verified / failed
 *
 * All 5 commands are pure local reads/writes against
 * `.peaks/fork-state.json`. The actual git fetch + merge is out of
 * scope for this slice (deferred to 2.15.x).
 */
import type { Command } from 'commander';
import { type ProgramIO } from '../cli-helpers.js';
export declare function registerForkCommands(program: Command, io: ProgramIO): void;