refactor: user cache logic

controller/billing.go

@@ -21,7 +21,7 @@ func GetSubscription(c *gin.Context) {
 		usedQuota = token.UsedQuota
 	} else {
 		userId := c.GetInt("id")
-		remainQuota, err = model.GetUserQuota(userId)
+		remainQuota, err = model.GetUserQuota(userId, false)
 		usedQuota, err = model.GetUserUsedQuota(userId)
 	}
 	if expiredTime <= 0 {