fix: 更新canAddInvoice方法的注释，明确审核通过条件

src/views/financialManage/paidManagement/index.vue

@@ -187,6 +187,7 @@
       canAddInvoice() {
         return function(row) {
           if (!row) return false;
+          // 审核通过 && 先款后票 && 票没开完 && 未开票金额 > 0
           return [2].includes(row.approvalStatus) && row.transactionMode == 2 && row.invoiceStatus != 2 && row.unInvoiceAmount && +row.unInvoiceAmount > 0;
         };
       },