Add log file location to `/session` output

[williammartin]

Describe the feature or problem you'd like to solve

Right now, telling people to go grab their session ID, find the right log directory, and find the right log file is super annoying. At the very least, let's add the log file location /session output.

Proposed solution

When I run /session there should be an entry for the log file.

Example prompts or workflows

No response

Additional context

No response