feat: 添加逻辑以初始化relatedList，支持从relatedVO字段提取数据

src/views/financialManage/invoiceManage/components/addOrEditDialogNew.vue

@@ -796,6 +796,7 @@
               // 优先使用调用方传入的 splitData（handleReissue 已检查过接口），避免重复调用
               const data = splitData ?? (await splitInitAPI(row.id));
               data.type = Number(data.type);
+              data.relatedList = data.relatedVO ? [data.relatedVO] : [];
               Object.keys(data || {}).forEach((k) => {
                 this.$set(this.form, k, data[k]);
               });