Notify
Notifications are handled by node4-notify-service. Supports Bark, Feishu, DingTalk, and webhooks.

Admin pages
Section titled “Admin pages”- Notify Settings (
/notify-settings) — Configure channels
Channels
Section titled “Channels”- Bark — iOS push notifications
- Feishu — Feishu/Lark webhook
- DingTalk — DingTalk webhook
Backend services (e.g. pay, support) can trigger notifications via node4. Configure webhook URLs and keys in admin.