ITC-WP-0012: integrate Repository Layout Standard

Register the InfoTechCanon Repository Layout Standard as a domain standard
(itc-repo-layout), processed from demand through the canon's Purpose/Demand
intake without collapsing existing model concepts.

- Register standard in artifacts/index.yaml, canon.yaml, infospace.yaml;
  regenerate indexes, views, briefs, tree, and validation (validate green).
- T04: add reconciliation.yaml (partial/as-is dogfooding, declared core
  conformance, recorded tensions); resolve the demand by moving it out of
  demand/ to the evaluation pack as source-demand.md and removing demand/.
- T05: add consumer-adoption-brief.md for downstream repos.
- Update test artifact/standard counts (60->61, standards 2->3).
- Mark T03/T04/T05 done; workplan and registry status -> finished.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_cli.py

@@ -11,7 +11,7 @@ def test_cli_inspect_emits_json(capsys) -> None:
     assert exit_code == 0
     payload = json.loads(capsys.readouterr().out)
     assert payload["ok"] is True
-    assert payload["infospace"]["artifact_count"] == 60
+    assert payload["infospace"]["artifact_count"] == 61
 
 
 def test_cli_missing_profile_uses_structured_error(capsys) -> None: