优化表结构，重构模型，重新实现基于白银网关的提取节点流程

web/handlers/trade.go

@@ -4,8 +4,8 @@ import (
 	"log/slog"
 	"platform/web/auth"
 	"platform/web/core"
-	trade2 "platform/web/domains/trade"
 	g "platform/web/globals"
+	m "platform/web/models"
 	s "platform/web/services"
 	"time"
 
@@ -14,7 +14,7 @@ import (
 
 type TradeCreateReq struct {
 	s.CreateTradeData
-	Type     trade2.Type            `json:"type" validate:"required"`
+	Type     m.TradeType            `json:"type" validate:"required"`
 	Resource *s.CreateResourceData  `json:"resource,omitempty"`
 	Recharge *s.RechargeProductInfo `json:"recharge,omitempty"`
 }
@@ -38,12 +38,12 @@ func TradeCreate(c *fiber.Ctx) error {
 	}
 
 	switch req.Type {
-	case trade2.TypePurchase:
+	case m.TradeTypePurchase:
 		if req.Resource == nil {
 			return core.NewBizErr("购买信息不能为空")
 		}
 		req.Product = req.Resource
-	case trade2.TypeRecharge:
+	case m.TradeTypeRecharge:
 		if req.Recharge == nil {
 			return core.NewBizErr("充值信息不能为空")
 		}