init: seed framework reference content from agent-runtimes main repo

harnesses/capabilities/agent-communication/v1/harness.yaml

@@ -0,0 +1,19 @@
+kind: capability
+name: agent-communication
+version: 1
+description: "ACL: agent-to-agent messaging via git-backed conversation repo"
+requires: []
+
+secrets_required:
+  - name: AGENT_ED25519_KEY
+  - name: AGENT_ED25519_PUB
+  - name: AGENT_MTLS_CERT
+  - name: AGENT_MTLS_KEY
+
+env:
+  ACL_TASK_ID: ""
+  ACL_ORIGIN_TASK_ID: ""
+  ACL_CONVERSATION_REPO_URL: ""
+
+scripts:
+  init: "./init.sh"