feat: update knowledge workspace and menu configuration

.gitignore

@@ -111,6 +111,11 @@ frontend-web-node_modules-offline-*.tar.gz
 /.pnpm-store/
 /offline-backend-20260512/backend/backend*.zip
 
+# Local offline bundles and scratch tooling
+/*.tar.gz
+/offline-backend-20260512/*.zip
+/tmp/
+
 .codegraph
 codegraph.mdc