update: backend submodule

YumNumm · cursoragent · YumNumm · commit 492e2b3e6d17 · 2026-02-05T02:13:10.000+09:00
Co-authored-by: Cursor &lt;cursoragent@cursor.com&gt;
diff --git a/backend b/backend
@@ -1 +1 @@
-Subproject commit ebb146eea5fb0712e918052971df101461d219b5
+Subproject commit c5483550ccee73b38ebea313f4e01262b21b5124
