Add retrieval agent briefs and interface cards

infospace/agent/briefs/model-data.md

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+---
+id: agent-brief/model-data
+artifact_id: model/data
+source_path: models/data/InfoTechCanonDataModel.md
+source_kind: model
+generated: true
+---
+
+<!-- GENERATED by info_tech_canon; do not edit by hand. -->
+
+# Agent Brief: InfoTechCanon Data Model
+
+- Artifact ID: `model/data`
+- Kind: `model`
+- Canonical path: `models/data/InfoTechCanonDataModel.md`
+- Full source: `models/data/InfoTechCanonDataModel.md`
+- Summary: Domain model used by canon profiles and standards: InfoTechCanon Data Model.
+
+## Retrieval Hints
+
+Imports and anchors:
+- `kernel/itc-core`
+- `model/governance`
+
+## Owned Concepts
+
+- `InfoTechCanon Data Model`
+
+## Related Distinctions
+
+No common distinction is anchored directly on this artifact.