feat: add Gotify notification option for quota alerts

service/quota.go

@@ -549,8 +549,11 @@ func checkAndSendQuotaNotify(relayInfo *relaycommon.RelayInfo, quota int, preCon
 				// Bark推送使用简短文本，不支持HTML
 				content = "{{value}}，剩余额度：{{value}}，请及时充值"
 				values = []interface{}{prompt, logger.FormatQuota(relayInfo.UserQuota)}
+			} else if notifyType == dto.NotifyTypeGotify {
+				content = "{{value}}，当前剩余额度为 {{value}}，请及时充值。"
+				values = []interface{}{prompt, logger.FormatQuota(relayInfo.UserQuota)}
 			} else {
-				// 默认内容格式，适用于Email和Webhook
+				// 默认内容格式，适用于Email和Webhook（支持HTML）
 				content = "{{value}}，当前剩余额度为 {{value}}，为了不影响您的使用，请及时充值。<br/>充值链接：<a href='{{value}}'>{{value}}</a>"
 				values = []interface{}{prompt, logger.FormatQuota(relayInfo.UserQuota), topUpLink, topUpLink}
 			}