runners: share protocol and reviewer policy

runners/codex-runner/src/reviewer-runtime.ts

@@ -1,9 +1,8 @@
 export {
   assertReadonlyWorkspaceRepoConnectivity,
   buildReviewerGitGuardEnv,
+  getReviewerRuntimeCapabilities,
+  isArbiterRuntimeEnvEnabled,
   isReviewerRuntime,
+  isReviewerRuntimeEnvEnabled,
 } from 'ejclaw-runners-shared';
-
-// Codex app-server does not expose a BashTool-style pre-use hook, so reviewer
-// mode can only hard-block mutating git via PATH interception here. Non-git
-// shell mutation commands remain a known gap when REVIEWER_AGENT_TYPE=codex.