Establish Railiance Fabric graph model

fabric/bindings/flex-auth-topaz-runtime.yaml

@@ -0,0 +1,16 @@
+apiVersion: railiance.fabric/v1alpha1
+kind: BindingAssertion
+metadata:
+  id: flex-auth.api.topaz-runtime-binding
+  name: flex-auth Topaz runtime binding
+  owner: flex-auth
+  repo: flex-auth
+  domain: railiance
+spec:
+  lifecycle: active
+  environments: [dev, staging, prod]
+  dependency_id: flex-auth.api.needs-topaz-runtime
+  provider_capability_id: flex-auth.topaz.authorization-runtime
+  provider_interface_id: flex-auth.topaz.http-api
+  status: exact
+  rationale: flex-auth delegates PDP execution to its Topaz runtime.