fix(ci): correct image digest separator

.wave/contracts/interface-design.schema.json

@@ -0,0 +1,36 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "Interface Design",
+  "description": "Go interface definitions derived from ontology entities",
+  "type": "object",
+  "required": ["package_name", "interfaces"],
+  "properties": {
+    "package_name": {
+      "type": "string"
+    },
+    "interfaces": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["name", "description", "methods"],
+        "properties": {
+          "name": { "type": "string" },
+          "description": { "type": "string" },
+          "source_entity": { "type": "string" },
+          "methods": {
+            "type": "array",
+            "items": {
+              "type": "object",
+              "required": ["name", "signature"],
+              "properties": {
+                "name": { "type": "string" },
+                "signature": { "type": "string" },
+                "description": { "type": "string" }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}