diff --git a/.git_backup_20260821 b/.git_backup_20260821
deleted file mode 160000
index f07b49e..0000000
--- a/.git_backup_20260821
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f07b49e0bb6f67bca805e2615d359cfb9024f862
diff --git a/.gitignore b/.gitignore
index 2b16844..ad000a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ __pycache__/
 *.log
 *.tmp
 .DS_Store
+.git_backup_20260821/