Establish Railiance Fabric graph model

fabric/interfaces/artifact-store-object-storage-bucket.yaml

@@ -0,0 +1,20 @@
+apiVersion: railiance.fabric/v1alpha1
+kind: InterfaceDeclaration
+metadata:
+  id: artifact-store.object-storage.bucket
+  name: artifact-store object bucket
+  owner: artifact-store
+  repo: artifact-store
+  domain: railiance
+spec:
+  lifecycle: planned
+  environments: [dev, staging, prod]
+  description: Bucket and object layout contract for artifact storage.
+  interface_type: object-storage-bucket
+  version: v1
+  service_id: artifact-store.storage-service
+  capability_ids:
+    - artifact-store.object-storage
+  auth:
+    method: sts_token
+  data_classification: confidential