Add retrieval agent briefs and interface cards

infospace/agent/briefs/model-governance.md

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+---
+id: agent-brief/model-governance
+artifact_id: model/governance
+source_path: models/governance/InfoTechCanonGovernanceModel.md
+source_kind: model
+generated: true
+---
+
+<!-- GENERATED by info_tech_canon; do not edit by hand. -->
+
+# Agent Brief: InfoTechCanon Governance Model
+
+- Artifact ID: `model/governance`
+- Kind: `model`
+- Canonical path: `models/governance/InfoTechCanonGovernanceModel.md`
+- Full source: `models/governance/InfoTechCanonGovernanceModel.md`
+- Summary: Domain model used by canon profiles and standards: InfoTechCanon Governance Model.
+
+## Retrieval Hints
+
+Imports and anchors:
+- `kernel/itc-core`
+
+## Owned Concepts
+
+- `InfoTechCanon Governance Model`
+
+## Related Distinctions
+
+- **Policy vs Control vs Evidence**: Policy states intent or rule, control implements or enforces that rule, and evidence records why the claim should be trusted.
+- **Intent vs Scope vs Purpose**: Intent captures why an actor wants something, scope bounds what is included, and purpose captures consumer demand or use case pressure on the repo.