🌟 fix: standardize and improve Playground Chat VIP group functionality

Merge pull request #1424 from feitianbubu/pr/fix-playground-chat-vip-group

middleware/auth.go

@@ -122,6 +122,7 @@ func authHelper(c *gin.Context, minRole int) {
 	c.Set("role", role)
 	c.Set("id", id)
 	c.Set("group", session.Get("group"))
+	c.Set("user_group", session.Get("group"))
 	c.Set("use_access_token", useAccessToken)
 
 	//userCache, err := model.GetUserCache(id.(int))