[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/rc-util/lib/Dom/scrollLocker.d.ts

@@ -0,0 +1,12 @@
+export interface scrollLockOptions {
+    container: HTMLElement;
+}
+export default class ScrollLocker {
+    private lockTarget;
+    private options;
+    constructor(options?: scrollLockOptions);
+    getContainer: () => HTMLElement | undefined;
+    reLock: (options?: scrollLockOptions) => void;
+    lock: () => void;
+    unLock: () => void;
+}