Canon 0.4.0: joinable consumer proof and EvidenceBasis

§10.3 now accepts a consumer record that validates against the live
catalog; resource-control's backup restatement is that proof. ITC-GOV
gains EvidenceBasis in tiers (invoiced and measured are peers) and
ITC-CAP requires it on every consumption row (CAP-R10).

infospace/agent/retrieval-index.yaml

@@ -1,6 +1,6 @@
 schema: info-tech-canon.retrieval-index.v1
 infospace: canon
-item_count: 65
+item_count: 66
 items:
 - id: assimilation/it-capability-canon
   kind: assimilation
@@ -144,6 +144,17 @@ items:
   imports: []
   relationships: []
   warnings: []
+- id: catalog/evidence-basis
+  kind: concept-catalog
+  title: InfoTechCanon Evidence Basis Catalog
+  canonical_path: models/governance/evidence-basis.yaml
+  source_path: demand/EvidenceBasis.md
+  summary: 'Structured candidate concept catalog: InfoTechCanon Evidence Basis Catalog.'
+  owned_concepts:
+  - InfoTechCanon Evidence Basis Catalog
+  imports: []
+  relationships: []
+  warnings: []
 - id: comparison/repo-scoping/canon-benefit-analysis
   kind: benefit-analysis
   title: Repo Scoping Canon Benefit Analysis
@@ -687,6 +698,7 @@ items:
   - CapabilityResourceClass
   - InfoTechCanon Capability Model
   imports:
+  - catalog/evidence-basis
   - kernel/itc-core
   - model/governance
   - model/landscape
@@ -703,6 +715,8 @@ items:
     target: model/purpose-demand-extension
   - type: uses
     target: model/observability
+  - type: uses
+    target: catalog/evidence-basis
   - type: introduces
     target: capability-catalog/itc-cap
   - type: derived_from
@@ -758,6 +772,8 @@ items:
   relationships:
   - type: conforms_to
     target: kernel/itc-core
+  - type: introduces
+    target: catalog/evidence-basis
   warnings: []
 - id: model/information-space
   kind: model