diff --git a/web/hwlab-cloud-web/app.ts b/web/hwlab-cloud-web/app.ts
index da76f72f..ef635eeb 100644
--- a/web/hwlab-cloud-web/app.ts
+++ b/web/hwlab-cloud-web/app.ts
@@ -1,3 +1,4 @@
+// CI/CD performance probe: web-only comment used to measure env reuse and git mirror pre-sync.
 import { ensureWorkbenchAuth, initWorkbenchLogout } from "./auth.ts";
 import {
   codeAgentRuntimePathFromMessage,