fix(managed-agent): upgrade OpenAgentPack SDK to 0.4.0 beta

Author: chenanran555

packages/commands/package.json

@@ -40,7 +40,7 @@
     "check": "vp check"
   },
   "dependencies": {
-    "@openagentpack/sdk": "0.3.2",
+    "@openagentpack/sdk": "0.4.0-beta-2472720-20260827",
     "bailian-cli-core": "workspace:*",
     "bailian-cli-runtime": "workspace:*",
     "boxen": "catalog:",