model add update time

pkg/common/db/model_struct.go

@@ -219,6 +219,7 @@ type Conversation struct {
 	IsPrivateChat         bool   `gorm:"column:is_private_chat" json:"isPrivateChat"`
 	GroupAtType           int32  `gorm:"column:group_at_type" json:"groupAtType"`
 	IsNotInGroup          bool   `gorm:"column:is_not_in_group" json:"isNotInGroup"`
+	UpdateUnreadCountTime int64  `gorm:"column:update_unread_count_time" json:"updateUnreadCountTime"`
 	AttachedInfo          string `gorm:"column:attached_info;type:varchar(1024)" json:"attachedInfo"`
 	Ex                    string `gorm:"column:ex;type:varchar(1024)" json:"ex"`
 }