【修复】修复长期持有tcp连接未关闭

【修复】修复生成新的acme账号时有概率覆盖所有账号
【修复】修复新旧let账号不统一的兼容性问题

backend/internal/cert/deploy/btwaf.go

@@ -65,7 +65,8 @@ func RequestBtWaf(data *map[string]any, method, providerID, requestUrl string) (
 		ignoreSsl = true
 	}
 	tr := &http.Transport{
-		TLSClientConfig: &tls.Config{InsecureSkipVerify: ignoreSsl},
+		TLSClientConfig:   &tls.Config{InsecureSkipVerify: ignoreSsl},
+		DisableKeepAlives: true,
 	}
 
 	client := &http.Client{Transport: tr}
@@ -207,4 +208,4 @@ func BtWafAPITest(providerID string) error {
 		return fmt.Errorf("测试请求失败: %v", err)
 	}
 	return nil
-}
+}