capture and monitor l1 errors with an error tracking service

[gruns]

submission of errors to the error tracking service should be:

1. optional
2. a configuration option through an environment variable, like all other configuration at this stage. eg REPORT_ERRORS or similar
3. default opted in. ie the default is REPORT_ERRORS=true and the l1 op has to voluntarily opt out to not report errors

tbd which error tracking service/software to use, but likely https://sentry.io/

[gruns]

and the winner is... sentry 👑