diff --git a/src/index.html b/src/index.html
index 9a3c041..b2e5586 100644
--- a/src/index.html
+++ b/src/index.html
@@ -4,6 +4,8 @@
 <meta charset="utf-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1" />
 <title>FleetOps — Fleet Operations</title>
+<meta name="build-marker" content="autodeploy-test-1">
+
 <!--
   FleetOps — fleet operations analytics (fuel · utilisation · driver behaviour).
   Sibling to FleetNow (live tracking); reuses the same warm-dark ops palette so