Session history dashboard

[nthh]

Summary

Show users a history of their past sessions — when they ran, what repos, how long.

Details

The server already emits analytics events (session.created, session.ended, etc.) with timestamps and metadata. This just needs:

• Persistent storage for events (currently stdout + optional file)
• A /api/sessions/history endpoint filtered by user
• A dashboard UI showing past sessions as a list/table

Fields per session

• Start time, end time, duration
• Repo URL (if any)
• How it ended (idle timeout vs user-terminated)

Nice-to-haves

• Re-launch button (pre-fills form with same repo/settings)
• Total usage stats (sessions this week, hours used)