The node-engine owns the composition it alone runs (H1, H2)

ADR 0593 §1 and §7: compose, its bus reader and runtime reader, takein,
validate, the overlay generator, the composer's run and mesh-compose, and
the judgement of a move leave mesh-sdk for the node-engine's internal
packages, so no other module composes and a change to them rebuilds only
the node-engine. The shapes others read (the composer's request and
verdict, the overlay's names, compositions and answers) stay in mesh-sdk.
The node's grant is now a golden file of what the grants part composes,
since the composer of the bus's user list leaves mesh-sdk too.

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL

cmd/mesh-compose/testdata/mesh-catalog/modules/openai-consumer/module.json.captured

@@ -0,0 +1,61 @@
+{
+  "module": "openai-consumer",
+  "version": "1",
+  "slug": "openai",
+  "capabilities": [
+    "container-runtime"
+  ],
+  "requires": [
+    "model-access"
+  ],
+  "binds": {
+    "model-access": "${dir:state}/model.json"
+  },
+  "secrets": {
+    "model-access": "${dir:state}/api-key"
+  },
+  "resources": [
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "place": ".",
+      "unknown": "program"
+    },
+    {
+      "id": "config",
+      "type": "directory",
+      "mode": "0700",
+      "unknown": "program"
+    },
+    {
+      "id": "apply",
+      "type": "process",
+      "name": "openai-consumer-apply",
+      "artifact": "code",
+      "run": [
+        "node",
+        "apply/index.js"
+      ],
+      "schedule": "*/5 * * * *",
+      "env": {
+        "MESH_MODEL_ACCESS_SECRET_FILE": "${dir:state}/api-key",
+        "MESH_MODEL_ACCESS_BIND_FILE": "${dir:state}/model.json",
+        "MESH_OPENAI_ENV_FILE": "${dir:state}/config/openai.env",
+        "MESH_OPENAI_CREDENTIALS_FILE": "${dir:state}/config/auth.json"
+      }
+    }
+  ],
+  "build": {
+    "artifacts": [
+      {
+        "name": "code",
+        "kind": "bundle",
+        "language": "typescript",
+        "entrypoints": [
+          "apply/index.js"
+        ]
+      }
+    ]
+  }
+}