From 912900046c9304dee5bd956b680ac4aac9b3e96b Mon Sep 17 00:00:00 2001
From: Luca Toniolo <10792599+grandixximo@users.noreply.github.com>
Date: Sat, 20 Jun 2026 21:33:42 +0800
Subject: [PATCH] docs(html): add a topbar extension slot for post-processing
 add-ons

Provide a generic, empty slot in the docs topbar (data-lcnc-slot="topbar-end") that out-of-tree post-processing can fill, for example to bolt on search. Empty in the base build; nothing is fetched or required.
---
 docs/src/docinfo-header.html.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/src/docinfo-header.html.in b/docs/src/docinfo-header.html.in
index 690b4421960..d6932f76685 100644
--- a/docs/src/docinfo-header.html.in
+++ b/docs/src/docinfo-header.html.in
@@ -13,5 +13,8 @@
     <span class="lcnc-sep" aria-hidden="true">&bull;</span>
     <a data-lcnc-link="4" href="{lcnc-cssrel}en/gcode.html">G-Code Quick Reference</a>
   </nav>
+  <!-- Extension slot for optional post-processing add-ons (for example a search
+       box injected by a separate tool). Empty in the base build. -->
+  <div class="lcnc-topbar-slot" data-lcnc-slot="topbar-end"></div>
 @LANGUAGE_SWITCHER@
 </header>