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>

infospace/indexes/import-matrix.yaml

@@ -58,6 +58,7 @@ artifacts:
 - small-saas/tenant/globex
 - small-saas/user/ada-admin
 - standard/caring
+- standard/repository-layout
 - standard/tagging
 rows:
 - artifact: benchmark/caring/kubernetes-rbac
@@ -720,6 +721,16 @@ rows:
     - imports
     standard/tagging:
     - imports
+- artifact: standard/repository-layout
+  targets:
+    kernel/itc-core:
+    - conforms_to
+    model/governance:
+    - imports
+    model/information-space:
+    - imports
+    model/task:
+    - imports
 - artifact: standard/tagging
   targets:
     kernel/itc-core: