Publish federation governance interface and consistency residual

canon/interfaces/README.md

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+# Canon federation interface
+
+The [interface card](federation.yaml) publishes this canon's federation boundary
+under [accepted ADR-006](../architecture/adr-006-canon-federation-concept-ownership.md).
+
+- [info-tech-canon interface](../../../info-tech-canon/infospace/interfaces/federation.yaml)
+- [commerce-canon interface](../../../commerce-canon/infospace/interfaces/federation.yaml)
+
+Each export names its source document and current maturity. Imports identify
+actual dependencies; reciprocal navigation does not imply reciprocal semantic
+imports. Custodian supplies ecosystem governance, InfoTechCanon information-
+processing semantics, and CommerceCanon commercial semantics. Family remains
+seeded, not authored. The card scope is this federation, not every repo artifact.
+
+Reproduce G7 from the adjacent project checkout:
+
+```bash
+python3 tools/validate_interfaces.py --workspace ..
+```

canon/interfaces/federation.yaml

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+id: the-custodian/federation-interface
+title: the-custodian Canon Federation Interface Card
+consumer: the-custodian
+canon_surfaces:
+- CUST-ADR-006
+status: published
+version: 0.1.0
+owner: the-custodian
+scope: CFED-WP-0001 federation boundary; not a complete inventory of the repository or a runtime adoption
+  claim
+schema_source:
+  repository: info-tech-canon
+  path: infospace/schemas/interface-card.schema.yaml
+authority:
+  repository: the-custodian
+  artifact: CUST-ADR-006
+  path: canon/architecture/adr-006-canon-federation-concept-ownership.md
+  revision: accepted-1
+  source_commit: f895d2d0ab49aab2f278f63388d9a683ecac6c63
+  sha256: a454df0e1d227f99ebb36c4abd45c76cc12579086d34f0c0ccfccfd7f4790823
+peers:
+- repository: info-tech-canon
+  card: infospace/interfaces/federation.yaml
+  relationship: governed domain canon
+- repository: commerce-canon
+  card: infospace/interfaces/federation.yaml
+  relationship: governed domain canon
+exports:
+- artifact: CUST-ADR-006
+  kind: ecosystem-governance
+  path: canon/architecture/adr-006-canon-federation-concept-ownership.md
+  status: accepted
+  concepts: []
+  governs:
+  - info-tech-canon
+  - commerce-canon
+  revision: accepted-1
+imports: []
+source_of_truth:
+  governance: the-custodian/CUST-ADR-006
+  ownership_assignment: prj-canon-federation/ledger/concept-ownership.json
+  definitions: exporting canon model documents; seed areas carry no authored domain model
+mapping_rules:
+- Import a concept from its declared owner; do not copy a definition as a competing local root.
+- Identifier stays itc-ident; Registry Identifier and Proxy Commercial Identifier are Commerce specializations.
+- Evidence assertions and Evidence Source containers stay distinct under itc-evid.
+- Identity Assurance Level, governance AssuranceCase/AssuranceConclusion, and Counterparty Assurance Gradient
+  stay distinct.
+- Family is a separate seed; Community and Household are itc-org draft social collectives.
+known_deviations:
+- This card uses the existing JSON Schema string consumer / array canon_surfaces shape; richer Core section
+  24 fields are additive.
+- Exports describe availability, not proof of adoption. No reverse Commerce domain import by InfoTechCanon
+  or Custodian is asserted.
+- Custodian governs both domain canons but owns none of their domain semantics.
+expectations:
+- Validate reciprocal cards and pinned sources with prj-canon-federation/tools/validate_interfaces.py.
+- Review changed source versions explicitly and retain earlier import manifests.
+- Fleet reference acceptance remains CFED-WP-0001-T09; demand-driven residuals remain T10.