Feature Request: Cockroach Dashboard Annotations / Notes

Apologies if this has been requested before.

I would like the ability to add annotations (vertical lines on graphs with a note) to cockroachdb graphs so that changes done to the cluster settings, infrastructure, or application changes, could be noted for longer term trending review.

For example, we found a bug in our application that was spamming db requests that are very small and fast. By fixing this bug, our p99, median query times will change, cpu, etc. Would be good to have a long term note of this for trending review.

For a great example on how to do this see Grafana.


Also would be great to be able to associate notes:

- cluster settings that have been changed
- indexes (what are they for, why)
- schedules

Jira issue: CRDB-28516