```

feat(pet): 添加宠物交易功能

- 新增ModPrise接口用于修改宠物售价
- 新增BuyPet接口用于购买宠物
- 修改Pet模型中SalePrice字段类型为float32
- 实现宠物购买逻辑，包括价格验证、余额检查和交易处理
- 更新查询条件以支持宠物交易状态筛选
```

modules/player/service/pet.go

@@ -43,6 +43,39 @@ func (s *PetService) UPdateFree(ctime uint32, free uint32) {
 		"free", free,
 	).Update()
 
+}
+func (s *PetService) UPdatePrice(ctime uint32, Price float32) {
+
+	s.dbm(s.Model).Where("catch_time", ctime).Data("sale_price", Price).Update()
+
+}
+func (s *PetService) BuyPet(pid uint32) error {
+	var tt *model.Pet
+
+	s.dbm(s.Model).Where("id", pid).Scan(&tt)
+	if tt == nil {
+		return fmt.Errorf("没有此精灵")
+	}
+	if tt.IsVip != 0 {
+		return fmt.Errorf("不允许交易")
+	}
+	if tt.IsSale == 0 {
+		return fmt.Errorf("未上架")
+	}
+	if tt.SalePrice == 0 {
+		return fmt.Errorf("未设置价格")
+	}
+
+	if service.NewBaseSysUserService().GetGold(uint(s.userid)) < int64(tt.SalePrice)*100 {
+		return fmt.Errorf("余额不足")
+	}
+	service.NewBaseSysUserService().UpdateGold(tt.PlayerID, int64(tt.SalePrice)*100)
+	service.NewBaseSysUserService().UpdateGold(s.userid, -int64(tt.SalePrice)*100)
+	s.PetAdd(&tt.Data)
+	s.dbm(s.Model).Where("id", pid).Delete() //删除旧精灵
+
+	return nil
+
 }
 func (s *PetService) UPdate(t model.PetInfo) {
 
@@ -168,14 +201,14 @@ func NewPetService(userid uint32) *PetService {
 			Service: &cool.Service{
 				Model: model.NewPet(),
 				PageQueryOp: &cool.QueryOp{
-					FieldEQ: []string{"player_id", "free"},
+					FieldEQ: []string{"player_id", "free", "is_sale"},
 					Where: func(ctx context.Context) [][]interface{} {
-						var (
-							admin  = cool.GetAdmin(ctx)
-							userId = admin.UserId
-						)
+						// var (
+						// 	admin = cool.GetAdmin(ctx)
+						// 	// userId = admin.UserId
+						// )
 						return [][]interface{}{
-							{"player_id", userId, true},
+							// {"player_id", userId, true},
 							{"free", 1, true},
 							{"is_vip", 0, true},
 						}