diff --git a/.gitignore b/.gitignore
index 9634c48..06aa3d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,7 @@ backend/uploads/temp/
 claude.md
 claude_status.md
 feature_request*.md
+backend/add_vendor_to_documents.js
+backend/fix_multivendor_constraint.js
+backend/server.js-backup
+backend/setup.js-backup
diff --git a/backend/.gitignore b/backend/.gitignore
new file mode 100644
index 0000000..0a6c76f
--- /dev/null
+++ b/backend/.gitignore
@@ -0,0 +1,5 @@
+
+# One-time migration scripts
+backend/fix_multivendor_constraint.js
+backend/migrate_multivendor.js
+backend/add_vendor_to_documents.js
diff --git a/backend/setup.js b/backend/setup.js
old mode 100644
new mode 100755