fix(versionManagement):重置文件列表状态

在取消和新增操作中添加 fileList.value = [] 来重置文件列表状态，
确保弹窗关闭和打开时文件列表被正确清空。

src/views/system/business/versionManagement/index.vue

@@ -286,6 +286,7 @@ const getList = async () => {
 /** 取消按钮 */
 const cancel = () => {
   reset();
+  fileList.value = [];
   dialog.visible = false;
 };
 
@@ -317,6 +318,7 @@ const handleSelectionChange = (selection: VersionManagementVO[]) => {
 /** 新增按钮操作 */
 const handleAdd = () => {
   reset();
+  fileList.value = [];
   dialog.visible = true;
   dialog.title = '添加';
 };