fix: 修复获取发票类别时的类型转换问题，确保为无效值时返回空字符串

src/views/bpm/handleTask/components/financialManage/receivableManage/components/detailDialog.vue

@@ -236,7 +236,7 @@
       async getInfo(id) {
         await this.getClassifyList(24, 'accountingSubjectList');
         let data = await getFinReceivableInfoAPI(id);
-        data.invoiceCategory = Number(data.invoiceCategory);
+        data.invoiceCategory = Number(data.invoiceCategory) || '';
         this.dataForm = {
           ...this.dataForm,
           ...data