docs(roadmap): close out the rac-editors convergence item [roadmap:rac-editors]

[tcballard]

Summary

Implements the closeout of rac/roadmaps/repo-topology/rac-editors.md.

Adds:

• rac-editors roadmap item status flipped Planned → Achieved — the family repo exists with the extension under vscode/ (rac-editors#1, merged), the epic (Epic: repo-topology — converge the org onto the rac-* topology #228) has the member item checked off, and the Marketplace/OpenVSX identity is unchanged.
• The one live corpus reference to lore-vscode (rac/designs/lore-frontend-optionality.md, present-tense surfaces list) repointed to the rac-editors VS Code extension, satisfying the roadmap's "no rac-core reference points at lore-vscode" success measure for live references.

Roadmap / ADR Trace

Roadmap:

• rac/roadmaps/repo-topology/rac-editors.md

Relevant ADRs:

• rac/decisions/adr-061-roadmap-achieved-status.md — Achieved terminal status, set by a human at delivery
• rac/decisions/adr-092-repository-topology.md — one repo per concern, rac-* naming
• rac/decisions/adr-063-non-python-clients-thin-clients.md — extension stays a thin client over the contract

Scope

Included

• The status flip and the single live-reference repoint. Nothing else.

Excluded

• Sibling member items (rac-ci, rac-connectors, rac-sdk, rac-benchmarks) and the repo-topology-convergence umbrella stay Planned — their delivery is not verified from this session, and the umbrella's naming/brand cutover initiative is still open.
• Historical lore-vscode mentions are deliberately untouched: accepted ADRs (064/068/071/073/092), CHANGELOG.md, the archived repo-extraction-programme, the Achieved v0.22.x items, and docs/v0.22-housekeeping-runbook.md (kept as the record of how the v0.22.x extraction was actually run).
• The rename-subject mentions inside rac-editors.md and repo-topology-convergence.md — they name the source repo because it is the thing being renamed.
• No engine, contract, CLI, or schema change; per ADR-061 no closeout note or body rewrite is added on Achieved.

Product / Architecture Decisions

• Achieved is a status flip only, matching the v0.22.4/v0.22.5 precedent; the delivery event stays in Git history and the tracking epic, not the roadmap body (ADR-061).
• The roadmap success measure "No rac-core reference points at lore-vscode" is read as covering live, present-tense references — the corpus must keep naming the source repo in its historical record.

User-Facing Contract

Documentation-only change; no CLI, output, JSON, or exit-code change.

Verification

Ran

• rac validate rac/ — PASS, 333 artifacts checked, 333 valid, 0 invalid
• rac relationships rac/ --validate — 1687 relationships checked, 0 validation issues (edit is graph-neutral)
• rac review rac/ — no priority 1–2 findings; health score 94/100 (pre-existing priority 3–4 baseline unchanged)
• pytest — 1747 passed
• grep -ril lore-vscode — hits only the historical/subject files listed under Excluded

Covered

• Achieved is in the roadmap spec enum (src/rac/core/artifacts.py), so structural validation accepts the flip without code change; relationship validation confirms no edge was broken by the design-artifact edit.

Review Path

1. rac/roadmaps/repo-topology/rac-editors.md (status flip)
2. rac/designs/lore-frontend-optionality.md (reference repoint)

Notes For Reviewer

Two org actions remain outside this repo, tracked from rac-editors#1: set main as the default branch of itsthelore/rac-editors (still pointing at the merged convergence branch) and archive itsthelore/lore-vscode with a redirect note.

Implementation Process

Implemented with AI assistance under the roadmap contract; final scope, review, and acceptance decisions were made by the maintainer.