feat(server): 添加服务器地理位置信息字段

为服务器模型添加经度、纬度及中心点坐标字段，并在相关逻辑中处理这些字段
同时修复服务器用户列表缓存功能

internal/logic/public/subscribe/queryUserSubscribeNodeListLogic.go

@@ -137,17 +137,21 @@ func (l *QueryUserSubscribeNodeListLogic) getServers(userSub *user.Subscribe) (u
 				continue
 			}
 			userSubscribeNode := &types.UserSubscribeNodeInfo{
-				Id:        n.Id,
-				Name:      n.Name,
-				Uuid:      userSub.UUID,
-				Protocol:  n.Protocol,
-				Protocols: server.Protocols,
-				Port:      n.Port,
-				Address:   n.Address,
-				Tags:      strings.Split(n.Tags, ","),
-				Country:   server.Country,
-				City:      server.City,
-				CreatedAt: n.CreatedAt.Unix(),
+				Id:              n.Id,
+				Name:            n.Name,
+				Uuid:            userSub.UUID,
+				Protocol:        n.Protocol,
+				Protocols:       server.Protocols,
+				Port:            n.Port,
+				Address:         n.Address,
+				Tags:            strings.Split(n.Tags, ","),
+				Country:         server.Country,
+				City:            server.City,
+				Latitude:        server.Latitude,
+				Longitude:       server.Longitude,
+				LongitudeCenter: server.LongitudeCenter,
+				LatitudeCenter:  server.LatitudeCenter,
+				CreatedAt:       n.CreatedAt.Unix(),
 			}
 			userSubscribeNodes = append(userSubscribeNodes, userSubscribeNode)
 		}

internal/logic/public/user/unbindDeviceLogic.go

@@ -69,6 +69,15 @@ func (l *UnbindDeviceLogic) UnbindDevice(req *types.UnbindDeviceRequest) error {
 		if err != nil {
 			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "delete device online record err: %v", err)
 		}
+		var count int64
+		err = tx.Model(user.AuthMethods{}).Where("user_id = ?", deleteDevice.UserId).Count(&count).Error
+		if err != nil {
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "count user auth methods err: %v", err)
+		}
+
+		if count < 1 {
+			_ = tx.Where("id = ?", deleteDevice.UserId).Delete(&user.User{}).Error
+		}
 
 		//remove device cache
 		deviceCacheKey := fmt.Sprintf("%v:%v", config.DeviceCacheKeyKey, deleteDevice.Identifier)