/**
 * v2.11.0 — Group E (Tier 8): `peaks migrate v2-10-to-v2-11` command.
 *
 * Deprecation helper for projects upgraded from 2.10.0 → 2.11.0. The
 * peaks-rd `tech-doc.md` output was removed in 2.11.0 (Group A). This
 * migration prepends a YAML banner to every pre-2.11.0 session's
 * `rd/tech-doc.md` file marking it as `deprecated: historical`. The
 * immutable peaks-prd handoff at `prd/handoff.md` is the new source
 * of truth; old files coexist (text-only — no file moves per
 * Karpathy §3 surgical changes).
 *
 * Default: dry-run. Pass `--apply` to actually write.
 * Idempotent: re-running on an already-migrated tree is a no-op
 * (all files report `reason: 'already-deprecated'`).
 *
 * === Source: .peaks/memory/2026-06-26-v2-11-rm-rd-techdoc-immutable-handoff.md §"Tier 8" ===
 */
import type { Command } from 'commander';
import { type ProgramIO } from '../cli-helpers.js';
export declare function registerMigrateV2ToV11Command(workspace: Command, io: ProgramIO): void;