TASK SHIP-D.4 — Record the map-cli repository disposition under D189 and archive it

[olympum]

Parent plan: mithran-hq/aegis#2236 (PLAN SHIP)
Decided by: ADR 0082 (docs/adr/0082-forge-absorption-and-sha-addressed-deploy.md, landed on main as a02db2f)

Objective

Carries item 4 of mithran-hq/aegis#2184. With the client absorbed and the pin
removed, map-cli ships no independently pinned release artefact, so D189
decision 1 no longer admits it as a repository and D189 decision 4 governs what
remains.

The governing rule

D189 decision 1: "A capability earns a repository when it produces an
independently versioned, independently pinned release artefact. Otherwise it
belongs inside one as a crate, a package, or a directory." It is checkable against
component-pins/protected-worker-components.lock.json, which SHIP-D.2 edits.

D189 decision 4: "Retirement means the source is gone. A retired repository has
its buildable source deleted. History, documentation, and the repository itself
remain, so references and links keep working." The record names
mithran-map-control as the negative example — a README sentence is not
retirement.

Scope

• A README pointer to aegis forge and ADR 0082.
• Stop the release lane.
• Delete the buildable source per D189 decision 4, keeping history and docs.
• Record the disposition. Where the record goes is an open question — either
  the mithran-business decision registry or the repository record itself
  satisfies D189's process. Confirm before landing.

Acceptance criteria

• The repository builds nothing: no buildable source remains, matching D189
  decision 4's observable test.
• The README names the successor.
• The disposition record exists in the confirmed location.
• Before archiving, confirm nothing in map-cli was left unabsorbed. If
  something was, stop and escalate rather than absorbing it silently.

Proof

gh repo view mithran-hq/map-cli --json isArchived --jq .isArchived   # true

plus the tree listing showing the buildable source gone.

Dependencies

SHIP-D.2 (the pin must be gone first) and SHIP-F.1 (archive only after the
end-to-end proof shows nothing still needs the old client).

Non-goals

Absorbing anything not already ported by Phase C.