[Question] How WebHook Setup the URL headers ?

### Question

I wanna send the alarm information to other alarm system using the webhook, but it seems doesn't have any way to set up the JWT Authentication on WebHook.

The issue does not name a file, test, or entry point. Start by locating the existing WebHook configuration and alert-notification documentation, then clarify whether JWT authentication should be documented or added; done requires a clear supported setup for sending alarm information to the external system.

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