[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/rc-cascader/es/context.d.ts

@@ -0,0 +1,21 @@
+import * as React from 'react';
+import type { CascaderProps, InternalFieldNames, DefaultOptionType, SingleValueType } from './Cascader';
+export interface CascaderContextProps {
+    options: NonNullable<CascaderProps['options']>;
+    fieldNames: InternalFieldNames;
+    values: SingleValueType[];
+    halfValues: SingleValueType[];
+    changeOnSelect?: boolean;
+    onSelect: (valuePath: SingleValueType) => void;
+    checkable?: boolean | React.ReactNode;
+    searchOptions: DefaultOptionType[];
+    dropdownPrefixCls?: string;
+    loadData?: (selectOptions: DefaultOptionType[]) => void;
+    expandTrigger?: 'hover' | 'click';
+    expandIcon?: React.ReactNode;
+    loadingIcon?: React.ReactNode;
+    dropdownMenuColumnStyle?: React.CSSProperties;
+    optionRender?: CascaderProps['optionRender'];
+}
+declare const CascaderContext: React.Context<CascaderContextProps>;
+export default CascaderContext;