swarm finish

Finalize a session when you’re done with a feature.

Usage

swarm finish                    # Finalize the active session
swarm finish --session <id>     # Finalize a specific session

What It Does

1. Collects artifacts from all runs, plans, and analyses in the session
2. Builds a structured summary (original request, phases, tasks, stream counts)
3. Appends the summary to .swarm/changelog.md (newest first)
4. Deletes checkpoint.json files from all runs (role summaries preserved)
5. Marks the session as finished in session.json