Introduce identity model and reconcile upstream imports

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a070b5-4994-7271-bd8b-7c3dbcedec4b

infospace/agent/briefs/model-identity.md

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+---
+id: agent-brief/model-identity
+artifact_id: model/identity
+source_path: models/identity/InfoTechCanonIdentityModel.md
+source_kind: model
+generated: true
+---
+
+<!-- GENERATED by info_tech_canon; do not edit by hand. -->
+
+# Agent Brief: InfoTechCanon Identity Model
+
+- Artifact ID: `model/identity`
+- Kind: `model`
+- Canonical path: `models/identity/InfoTechCanonIdentityModel.md`
+- Full source: `models/identity/InfoTechCanonIdentityModel.md`
+- Summary: Domain model used by canon profiles and standards: InfoTechCanon Identity Model.
+
+## Retrieval Hints
+
+Imports and anchors:
+- `kernel/itc-core`
+- `model/access-control`
+- `model/evidence`
+- `model/organization`
+
+## Owned Concepts
+
+- `Account`
+- `Administration Relationship`
+- `Affiliation Relationship`
+- `Assurance Level`
+- `Claim`
+- `Credential`
+- `Delegation Relationship`
+- `Following Relationship`
+- `Identifier`
+- `Identity Record`
+- `InfoTechCanon Identity Model`
+- `Lifecycle State`
+- `Persona`
+- `Profile`
+- `Pseudonymous Identifier`
+- `Realm`
+- `Relationship`
+- `Representation Relationship`
+- `Scope`
+- `Scoped Identifier`
+- `Service Account`
+- `Synonymity Assertion`
+- `Tenant`
+- `Trust Relationship`
+
+## Related Distinctions
+
+No common distinction is anchored directly on this artifact.