```

feat(user): 用户名转换为小写并优化QQ绑定错误消息处理

- 在BindQQ方法中将用户名转换为小写以确保一致性
- 修改bindqq控制器中的错误消息发送方式，使用私信发送绑定结果
- 避免在群聊中显示敏感的绑定错误信息

refactor(robot): 优化扭蛋物品列表展示逻辑

- 引入samber/lo库用于数组去重操作

modules/base/service/base_sys_user.go

@@ -78,7 +78,7 @@ func (s *BaseSysUserService) DuihuanGold(userId uint32, gold, free int64) {
 func (s *BaseSysUserService) BindQQ(username string, passworid string, qq int64) (err error) {
 	var res *model.BaseSysUser
 	cool.DBM(s.Model).Where("qq", qq).Scan(&res)
-
+	username = strings.ToLower(username)
 	if res != nil {
 		err = gerror.New("该QQ已绑定其他账号" + gconv.String(res.ID))
 		return

modules/config/controller/robot/cdk.go

@@ -10,6 +10,7 @@ import (
 )
 
 func init() {
+
 	zero.OnCommand("CDK").
 		Handle(func(ctx *zero.Ctx) {
 

modules/config/controller/robot/eggitem.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/samber/lo"
 	zero "github.com/wdvxdr1123/ZeroBot"
 	"github.com/wdvxdr1123/ZeroBot/message"
 )
@@ -15,15 +16,14 @@ func init() {
 	zero.OnCommand("扭蛋物品").
 		Handle(func(ctx *zero.Ctx) {
 
-			var buf strings.Builder
+			var buf []string
 
 			for _, v := range service.NewItemService().AllEgg() {
-
-				buf.WriteString(xmlres.ItemsMAP[int(v.ItemID)].Name + "\n")
+				buf = append(buf, xmlres.ItemsMAP[int(v.ItemID)].Name)
 
 			}
-
-			msg := ctx.SendChain(message.At(ctx.Event.Sender.ID), message.Reply(ctx.Event.MessageID), message.Text(buf.String()))
+			buf = lo.Union(buf)
+			msg := ctx.SendChain(message.At(ctx.Event.Sender.ID), message.Reply(ctx.Event.MessageID), message.Text(strings.Join(buf, "\n")))
 			cool.Cron.AfterFunc(30*time.Second, func() {
 				ctx.DeleteMessage(ctx.Event.MessageID)
 				ctx.DeleteMessage(msg)

modules/player/controller/robot/bindqq.go

@@ -15,9 +15,11 @@ func init() {
 
 				err := service.NewBaseSysUserService().BindQQ(msgs[1], msgs[2], ctx.Event.Sender.ID)
 				if err != nil {
-					ctx.Send(err.Error())
+					ctx.SendPrivateMessage(ctx.Event.Sender.ID, err.Error())
+
 				} else {
-					ctx.Send("绑定成功")
+					ctx.SendPrivateMessage(ctx.Event.Sender.ID, "绑定成功")
+
 				}
 
 			}