refactor: user cache logic

middleware/distributor.go

@@ -40,7 +40,7 @@ func Distribute() func(c *gin.Context) {
 			abortWithOpenAiMessage(c, http.StatusBadRequest, "Invalid request, "+err.Error())
 			return
 		}
-		userGroup, _ := model.CacheGetUserGroup(userId)
+		userGroup, _ := model.GetUserGroup(userId, false)
 		tokenGroup := c.GetString("token_group")
 		if tokenGroup != "" {
 			// check common.UserUsableGroups[userGroup]