feat(shipment): 添加混装功能模块

- 在 shipment 结构体中新增 Mixed 类型字段
- 创建 mixed 包及其相关结构体定义
- 实现混装列表查询、生成等功能接口
- 添加混装箱体和产品的数据模型及操作方法
- 集成客户端调用逻辑并实现 RPC 接口
- 定义混装相关的参数结构体和返回值类型

erp/shipment/mixed/product.go

@@ -0,0 +1,55 @@
+package mixed
+
+import (
+	"context"
+
+	"git.kumo.work/shama/service/client"
+	"github.com/shopspring/decimal"
+)
+
+type product struct {
+}
+
+type ProductItem struct {
+	Id                      int64            `json:"id"`
+	MixedFlag               int64            `json:"mixedFlag"`
+	Serial                  string           `json:"serial"`
+	CustomSerial            string           `json:"customSerial"`
+	Po                      string           `json:"po"`
+	Name                    string           `json:"name"`
+	BlEngName               string           `json:"blEngName"`
+	ShipmentCount           int64            `json:"shipmentCount"`
+	InnerNum                *int64           `json:"innerNum"`
+	InnerBoxCount           *int64           `json:"innerBoxCount"`
+	OuterNum                *int64           `json:"outerNum"`
+	OuterBoxCount           int64            `json:"outerBoxCount"`
+	CustomsSerial           string           `json:"customsSerial"`
+	CustomsName             string           `json:"customsName"`
+	CustomsDetail           string           `json:"customsDetail"`
+	CustomsMeasureUnit      string           `json:"customsMeasureUnit"`
+	ShipmentCountUnit       string           `json:"shipmentCountUnit"`
+	CustomsGrossWeight      decimal.Decimal  `json:"customsGrossWeight"`
+	TotalCustomsGrossWeight decimal.Decimal  `json:"totalCustomsGrossWeight"`
+	CustomsNetWeight        decimal.Decimal  `json:"customsNetWeight"`
+	TotalCustomsNetWeight   decimal.Decimal  `json:"totalCustomsNetWeight"`
+	DomesticSupply          string           `json:"domesticSupply"`
+	FactoryName             string           `json:"factoryName"`
+	SalePrice               decimal.Decimal  `json:"salePrice"`
+	SaleAmount              decimal.Decimal  `json:"saleAmount"`
+	CustomsPrice            decimal.Decimal  `json:"customsPrice"`
+	CustomsAmount           decimal.Decimal  `json:"customsAmount"`
+	OuterLength             *decimal.Decimal `json:"outerLength"`
+	OuterWidth              *decimal.Decimal `json:"outerWidth"`
+	OuterHeight             *decimal.Decimal `json:"outerHeight"`
+	OuterVolume             *decimal.Decimal `json:"outerVolume"`
+}
+
+// All @TITLE 获取全部产品
+func (p *product) All(ctx context.Context, mixedId int64) (reply []ProductItem, err error) {
+	xClient, err := client.GetClient(p)
+	if err != nil {
+		return
+	}
+	err = xClient.Call(ctx, "All", mixedId, &reply)
+	return
+}