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/agent/retrieval-index.md

@@ -4,7 +4,7 @@
 
 Schema: `info-tech-canon.retrieval-index.v1`
 Infospace: `canon`
-Items: **60**
+Items: **61**
 
 ## Common Distinctions
 
@@ -605,6 +605,16 @@ Items: **60**
 - Imports and anchors: `kernel/itc-core`, `model/access-control`, `model/data`, `model/devsecops`, `model/governance`, `model/network`, `model/observability`, `model/organization`, `model/security`, `model/task`, `standard/tagging`
 - Owned concepts: `CARINGAccessDescriptor`, `CARINGAnalysisFitnessTest`, `CARINGAnalysisProcedure`, `CARINGCanonicalRole`, `CARINGCapabilityProfile`, `CARINGDeclaredAccessMap`, `CARINGDerivedCapability`, `CARINGEffectiveAccessMap`, `CARINGExposureEvent`, `CARINGExposureMode`, `CARINGInducedAccess`, `CARINGOrganizationRelation`, `CARINGPlane`, `CARINGRedesignProcedure`, `CARINGRestrictionPrecedence`, `InfoTechCanon CARING Access Governance Standard`
 
+### InfoTechCanon Repository Layout Standard
+
+- ID: `standard/repository-layout`
+- Kind: `standard`
+- Canonical path: `standards/repository-layout/InfoTechCanonRepositoryLayoutStandard.md`
+- Source path: `infospace/evaluations/repository-layout/source-demand.md`
+- Summary: Cross-cutting canon standard: InfoTechCanon Repository Layout Standard.
+- Imports and anchors: `kernel/itc-core`, `model/governance`, `model/information-space`, `model/task`
+- Owned concepts: `CanonicalRepositoryLayout`, `InfoTechCanon Repository Layout Standard`, `LayoutConformanceLevel`, `RepositoryDocumentationDirectory`, `ScopeIntentOperatingMode`
+
 ### InfoTechCanon Tagging Standard
 
 - ID: `standard/tagging`