[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/rc-tree-select/es/index.d.ts

@@ -0,0 +1,7 @@
+import TreeSelect from './TreeSelect';
+import type { TreeSelectProps } from './TreeSelect';
+import TreeNode from './TreeNode';
+import { SHOW_ALL, SHOW_CHILD, SHOW_PARENT } from './utils/strategyUtil';
+export { TreeNode, SHOW_ALL, SHOW_CHILD, SHOW_PARENT };
+export type { TreeSelectProps };
+export default TreeSelect;