Setup AppSignal log capture and email notifications.

[zorn]

I think you can do uptime stuff too?

[zorn]

I started to follow along with this, but it lost me about half way where I had a mixture of confusion and disagreement.

https://blog.appsignal.com/2023/07/18/observe-your-phoenix-app-with-structured-logging.html

Will come back to this later.