chore(timeout-policy): drop now-unused schemastery dependency

The zero-config enforcer no longer imports schemastery (its Config was
removed); knip flags the stale dependency. Remove it from the manifest
and sync the lockfile.

packages/timeout/timeout-policy/package.json

@@ -27,9 +27,6 @@
     "@deepseek-ai/dsh-tools": "^0.0.1",
     "cordis": "^4.0.0-rc.6"
   },
-  "dependencies": {
-    "schemastery": "^3.18.0"
-  },
   "devDependencies": {
     "@deepseek-ai/dsh-llm": "workspace:^",
     "@deepseek-ai/dsh-timeout": "workspace:^",

pnpm-lock.yaml

@@ -817,10 +817,6 @@ importers:
         version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4)
 
   packages/timeout/timeout-policy:
-    dependencies:
-      schemastery:
-        specifier: ^3.18.0
-        version: 3.18.0
     devDependencies:
       '@deepseek-ai/dsh-llm':
         specifier: workspace:^