feat: add deployment zone overlays

fabric/interfaces/the-custodian-state-hub-mcp-api.yaml

@@ -0,0 +1,35 @@
+apiVersion: railiance.fabric/v1alpha1
+kind: InterfaceDeclaration
+metadata:
+  id: the-custodian.state-hub.mcp-api
+  name: State Hub MCP API
+  owner: the-custodian
+  repo: the-custodian
+  domain: custodian
+spec:
+  lifecycle: active
+  environments: [dev]
+  description: Local MCP surface for State Hub coordination tools.
+  interface_type: mcp-api
+  version: v1
+  service_id: the-custodian.state-hub
+  capability_ids:
+    - the-custodian.state-hub.coordination
+  endpoint:
+    url: http://127.0.0.1:8001
+    notes: Local workstation MCP endpoint when State Hub is running.
+  deployment_overlay:
+    deployment_environment: dev
+    deployment_scenario: bernd-laptop
+    routing_authority: state-hub-local-process
+    access_zone: private-dev
+    policy_authority: local-loopback-binding
+    exposure_class: local-only
+    route_evidence:
+      host: 127.0.0.1
+      port: 8001
+      protocol: tcp
+      route: http://127.0.0.1:8001
+  auth:
+    method: none
+  data_classification: internal