feat(payment-refund): 新增支付退款原付款用途编号字段

- 在 PaymentRefundItem 结构体中新增 PaymentPurposeNumber 字段
- 在 PaymentRefundAdd 结构体中新增 PaymentPurposeNumber 字段
- 在 ik3cloud 常量中新增 FilterCompareEqualNum 过滤比较常量

erp/paymentRefund.go

@@ -41,6 +41,7 @@ type PaymentRefundItem struct {
 	RefundDate           time.Time       `json:"refundDate"`
 	BankAccount          string          `json:"bankAccount"`
 	InvoiceSerial        string          `json:"invoiceSerial"`
+	PaymentPurposeNumber string          `json:"paymentPurposeNumber"`
 	PaymentPurpose       string          `json:"paymentPurpose"`
 	Remark               string          `json:"remark"`
 	Ik3cloudStatus       int64           `json:"ik3CloudStatus"`
@@ -81,6 +82,7 @@ type PaymentRefundAdd struct {
 	RefundDate           time.Time       // 退款日期
 	Amount               decimal.Decimal // 金额
 	Remark               string          // 备注
+	PaymentPurposeNumber string          // 原付款用途
 	PaymentPurpose       string          // 原付款用途
 	BankAccount          string          // 我方银行账号
 	InvoiceSerial        string          // 发票号

ik3cloud/constant/constant.go

@@ -116,6 +116,7 @@ type FilterCompare = string
 
 const (
 	FilterCompareEqual       FilterCompare = "67"  // 等于
+	FilterCompareEqualNum    FilterCompare = "29"  // 等于
 	FilterCompareStatusEqual FilterCompare = "105" // 状态等于
 	FilterCompareLte         FilterCompare = "16"  // 小于等于
 	FilterCompareGte         FilterCompare = "39"  // 大于等于