Add Health Check to Roles

[lucasbalieiro]

I'm building a small tool that captures the latest commits on the main branch of the SRI repo, rebuilds the code, and runs the Roles as defined in the tutorial: https://stratumprotocol.org/blog/getting-started#ii-getting-started---running-all-roles

The idea is to extend the CI flow with a 24/7 process that continuously runs everything. This may helps us catch regressions early, like if we accidentally break something described in the tutorial.

One of the key features I want to add is a way to alert us when something breaks.

Right now, I check if the last log written by any Role is older than 5 minutes. If it is, I mark it with a yellow indicator (and plan to send a notification, e.g. to Discord):

This also led to PR #1785.

However, this approach feels a bit fragile. It doesn’t really confirm that the Role itself is healthy—just that something was recently logged.

Do you have suggestions for a better health check strategy?
Should we think about adding an explicit health signal to the Roles?
Or is monitoring the timestamp of the last log good enough indicator?

[plebhash]

yeah strictly speaking maybe this could generate false positives, but we would be able to quickly spot them by checking logs

so for now I think it's ok, we can iterate and improve over time