Implement missing session management commands (destroy, cleanup, info)

[Wirasm]

Problem

The regression test revealed that several essential session management commands are missing from the SHARDS CLI.

Missing Commands

shards destroy <session>

• Should remove a specific session
• Clean up worktree directory
• Remove git branch (local and remote)
• Remove session from persistence registry
• Kill any running processes

shards cleanup

• Should clean up orphaned sessions
• Remove sessions with missing worktree directories
• Clean up stale git branches
• Validate and repair session registry

shards info <session>

• Should show detailed information about a session
• Display worktree path, git branch, agent type, creation time
• Show current status (active, orphaned, etc.)

Current Behavior

• shards destroy: Command not recognized
• shards cleanup: Command not recognized
• shards info: Command not recognized

Expected Behavior

All three commands should be implemented and working as described above.

Acceptance Criteria

• shards destroy <session> removes session completely
• shards cleanup handles orphaned sessions
• shards info <session> shows session details
• All commands have proper error handling
• Commands are covered by regression tests
• Documentation is updated

Related

This was discovered during regression testing in scripts/regression-test.sh.

[Wirasm]

Closing as completed. All three commands have been implemented:

• ✅ shards destroy - PR feat: implement cleanup tracking system #3 enhanced destroy to remove branches and kill processes
• ✅ shards cleanup - PR feat: implement cleanup tracking system #3 implemented cleanup tracking system
• ✅ shards status - PR feat: Add PID tracking and process management #8 added detailed process information (equivalent to info command)

All acceptance criteria met.