From f3e7e67fb31cd4a7a1f77394eb7650a8230fb490 Mon Sep 17 00:00:00 2001
From: weichen <weichen@home.local>
Date: Sun, 11 Oct 2026 04:38:09 +0000
Subject: [PATCH] Pin the backend U3 atomicity merge (PR #140)

Why: the parent must pin the merged component SHA for the combined build and CI gates.

Evidence: backend origin-main merge of #140 fetched and checked out.

Impact: gitlink only.

Refs: backend PR #140.
---
 modules/backend | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/backend b/modules/backend
index f480c5b5..3def5259 160000
--- a/modules/backend
+++ b/modules/backend
@@ -1 +1 @@
-Subproject commit f480c5b5207a183d9f282a57950b6726811bd3f4
+Subproject commit 3def5259023806a49ab84f885b7d220333cccde6