feat(auth): 添加设备绑定数量限制检查

在设备绑定逻辑中添加对设备绑定数量的限制检查，当超过限制时返回特定错误码
同时在用户注册、登录等流程中处理设备绑定数量超限的错误情况

internal/logic/auth/userLoginLogic.go

@@ -85,12 +85,15 @@ func (l *UserLoginLogic) UserLogin(req *types.UserLoginRequest) (resp *types.Log
 	if req.Identifier != "" {
 		bindLogic := NewBindDeviceLogic(l.ctx, l.svcCtx)
 		if err := bindLogic.BindDeviceToUser(req.Identifier, req.IP, req.UserAgent, userInfo.Id); err != nil {
+			var ce *xerr.CodeError
+			if errors.As(err, &ce) && ce.GetErrCode() == xerr.DeviceBindLimitExceeded {
+				return nil, ce
+			}
 			l.Errorw("failed to bind device to user",
 				logger.Field("user_id", userInfo.Id),
 				logger.Field("identifier", req.Identifier),
 				logger.Field("error", err.Error()),
 			)
-			// Don't fail login if device binding fails, just log the error
 		}
 	}
 	if l.ctx.Value(constant.LoginType) != nil {
@@ -111,16 +114,16 @@ func (l *UserLoginLogic) UserLogin(req *types.UserLoginRequest) (resp *types.Log
 		l.Logger.Error("[UserLogin] token generate error", logger.Field("error", err.Error()))
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "token generate error: %v", err.Error())
 	}
-    if err = l.svcCtx.EnforceUserSessionLimit(l.ctx, userInfo.Id, sessionId, l.svcCtx.SessionLimit()); err != nil {
-        return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "enforce session limit error: %v", err.Error())
-    }
+	if err = l.svcCtx.EnforceUserSessionLimit(l.ctx, userInfo.Id, sessionId, l.svcCtx.SessionLimit()); err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "enforce session limit error: %v", err.Error())
+	}
 	sessionIdCacheKey := fmt.Sprintf("%v:%v", config.SessionIdKey, sessionId)
 	if err = l.svcCtx.Redis.Set(l.ctx, sessionIdCacheKey, userInfo.Id, time.Duration(l.svcCtx.Config.JwtAuth.AccessExpire)*time.Second).Err(); err != nil {
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "set session id error: %v", err.Error())
 	}
 	loginStatus = true
-    return &types.LoginResponse{
-        Token: token,
-        Limit: l.svcCtx.SessionLimit(),
-    }, nil
+	return &types.LoginResponse{
+		Token: token,
+		Limit: l.svcCtx.SessionLimit(),
+	}, nil
 }