Canon 0.6.0 freeze: ITC-CAP draft, AVT catalog, joinable review

Finish ITC-WP-0013 (AttributeValueType under ITC-DATA) and ITC-WP-0014
T02/T03/T05/T06/T07. Capability contract schemas, live-catalog review
CLI, landscape/kernel-map pointers. Sit on this version.

infospace/models/capability/capabilities.yaml

@@ -13,8 +13,8 @@ canon:
   short_name: ITC-CAP
   artifact_id: model/capability
   version: 0.4.0
-  status: proposed
-  canon_version: 0.5.0
+  status: draft
+  canon_version: 0.6.0
   purpose: Canonical, implementation-independent catalog of the abilities an information system may require
     or provide.
   normative_document: models/capability/InfoTechCanonCapabilityModel.md