fix: use stable node symlink path in macOS plist, avoid Cellar breakage

setup.mjs now resolves /opt/homebrew/Cellar/node/X.Y.Z/ to
/opt/homebrew/opt/node/ so the LaunchAgent plist survives node upgrades.
Bump to v3.3.1.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ocp-plugin/openclaw.plugin.json

@@ -2,7 +2,7 @@
   "id": "ocp",
   "name": "OCP Commands",
   "description": "Slash commands for the OpenClaw Proxy — /ocp usage, /ocp settings, /ocp health, etc.",
-  "version": "3.3.0",
+  "version": "3.3.1",
   "configSchema": {
     "type": "object",
     "additionalProperties": false,

ocp-plugin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ocp",
-  "version": "3.3.0",
+  "version": "3.3.1",
   "description": "Slash commands for the OpenClaw Proxy",
   "main": "index.js",
   "type": "module",