Take the catalogue's composition rules into the node-engine

ADR 0593 §7: the composer with its refusals leaves mesh-sdk, so mesh-sdk
carries no composition rule. The catalogue functions only the
node-engine's composition reaches (Resolve, Resolution's Compose,
Declaration, DataItems, LeftOut, Rules and the rest, the settings,
placeholder and template refusals, the rendering helpers) are copied
with their tests into internal/compose/resolution; a method of a
mesh-sdk shape becomes a function taking it first. The composition
calls its own copies, and the captured catalogue its tests read lives
here now, shared by mesh-compose's tests.

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

testdata/beside/mesh-catalog/modules/screen-lock/module.json.captured

@@ -0,0 +1,78 @@
+{
+  "module": "screen-lock",
+  "version": "1",
+  "moved": true,
+  "capabilities": [
+    "package-manager"
+  ],
+  "requires": [
+    "x11-display"
+  ],
+  "claims": [
+    {
+      "name": "node-lock-screen",
+      "scope": "node",
+      "serves": [
+        "lock"
+      ]
+    }
+  ],
+  "tools": [
+    "screen_lock_idle",
+    "screen_lock_inhibit",
+    "screen_lock_locked"
+  ],
+  "items": [
+    {
+      "collection": "shell:xinitrc:normal",
+      "name": "xinitrc-normal",
+      "template": "files/xinitrc-normal"
+    }
+  ],
+  "resources": [
+    {
+      "id": "screensaver",
+      "type": "package",
+      "package": "xscreensaver",
+      "absent": true
+    },
+    {
+      "id": "watcher",
+      "type": "package",
+      "package": "xss-lock"
+    },
+    {
+      "id": "locker",
+      "type": "package",
+      "package": "i3lock"
+    },
+    {
+      "id": "wrapper",
+      "type": "file",
+      "path": "${machine:account-home}/.local/bin/screen-lock",
+      "owner": "${machine:account}",
+      "mode": "0755",
+      "template": "files/bin/screen-lock"
+    }
+  ],
+  "build": {
+    "artifacts": [
+      {
+        "name": "tools",
+        "kind": "bundle",
+        "language": "go",
+        "system": "arch",
+        "from": "cmd/screen-lock-tools",
+        "binary": "screen-lock-tools",
+        "loads": [
+          "screen-lock-tools"
+        ]
+      },
+      {
+        "name": "files",
+        "kind": "archive",
+        "from": "files"
+      }
+    ]
+  }
+}