research: see if there is a better logging solution

[marcopeereboom]

Confirmation

• I have checked for similar issues.

Problem

We use juju loggo which is really nice however it is expensive to run since it always seems to evaluate the parameters instead of short circuiting the call when in a lower mode.

Suggested solution

First of all, determine if this is indeed an issue. If it isn't we'll leave it as is.

If it is an issue we have to either replace it or fix it. What we CANNOT lose is the line number and file name, like ```
2025-08-05 13:03:51 INFO tbc tbc.go:1604

[joshuasing]

log/slog is a structured logging package added in Go 1.21, which allows handler implementations to handle log formatting and can include the filename and line number. This can also output logs that are easy to parse and filter.