feat(erp): 新增货币汇率服务及收汇水单批量生成

- 新增 currencyRate 模块，支持按货币和日期查询汇率信息
- 定义汇率响应结构，包含中间价、现钞卖出价、买入价等字段
- 在 ERP 服务结构体中注册 CurrencyRate 客户端
- 新增收汇水单批量生成接口 Gen，支持按交易明细ID批量生成
- 定义 ArgsReceiptGen 参数结构，包含员工ID和交易明细ID列表

erp/currencyRate.go

@@ -0,0 +1,34 @@
+package erp
+
+import (
+	"context"
+	"time"
+
+	client2 "git.kumo.work/shama/service/client"
+	"github.com/shopspring/decimal"
+)
+
+type currencyRate struct {
+}
+type ArgsCurrencyRateDay struct {
+	Currency string    `binding:"required" label:"货币"`
+	Day      time.Time `binding:"required" label:"日期"`
+}
+
+type ReplyCurrencyRateItem struct {
+	MiddleRate      decimal.Decimal `json:"middleRate"`
+	CashSellingRate decimal.Decimal `json:"cashSellingRate"`
+	BuyingRate      decimal.Decimal `json:"buyingRate"`
+	CashBuyingRate  decimal.Decimal `json:"cashBuyingRate"`
+	SellingRate     decimal.Decimal `json:"sellingRate"`
+}
+
+// Day @TITLE 获取货币汇率
+func (c *currencyRate) Day(ctx context.Context, args ArgsCurrencyRateDay) (reply ReplyCurrencyRateItem, err error) {
+	xClient, err := client2.GetClient(c)
+	if err != nil {
+		return
+	}
+	err = xClient.Call(ctx, "Day", args, &reply)
+	return
+}

erp/erp.go

@@ -22,4 +22,5 @@ type Erp struct {
 	Dict             dict
 	Ik3cloud         ik3cloud
 	Transfer         transfer
+	CurrencyRate     currencyRate
 }

erp/receipt.go

@@ -198,3 +198,18 @@ func (r *receipt) Cancel(ctx context.Context, receiptId int64) (err error) {
 	reply := 0
 	return xClient.Call(ctx, "Cancel", receiptId, &reply)
 }
+
+type ArgsReceiptGen struct {
+	StaffId          int64
+	BankStatementIds []int64 // 交易明细id
+}
+
+// Gen @TITLE 批量生成收汇水单
+func (r *receipt) Gen(ctx context.Context, args ArgsReceiptGen) (receiptIds []int64, err error) {
+	xClient, err := client.GetClient(r)
+	if err != nil {
+		return
+	}
+	err = xClient.Call(ctx, "Gen", args, &receiptIds)
+	return
+}

erp/transfer/statement.go

@@ -58,6 +58,7 @@ type StatementItem struct {
 	FeeInfo              string          `json:"feeInfo"`
 	CreatedAt            *time.Time      `json:"createdAt"`
 	UpdatedAt            *time.Time      `json:"updatedAt"`
+	ReceiptId            int64           `json:"receiptId"` // 生成的收汇水单id 0=未生成
 }
 
 // List @TITLE 列表