Build session dashboard for monitoring all active Claude Code sessions

[yossiovadia]

Goal

Create a dashboard command that shows all active Claude Code sessions, their status, and what they're working on.

Desired Output

┌─────────────────────────────────────────────────────────┐
│ Active Claude Code Sessions                             │
├─────────────────┬──────────────────────┬────────────────┤
│ Session         │ Directory            │ Status         │
├─────────────────┼──────────────────────┼────────────────┤
│ vsr-issue-1131  │ ~/code/semantic-...  │ ✅ Working     │
│ clawdbot-auth   │ ~/code/clawdbot      │ ⏸️  Idle       │
│ proxy-refactor  │ ~/code/claude-co...  │ 🚨 Waiting     │
└─────────────────┴──────────────────────┴────────────────┘

Implementation Plan

Phase 1: Session Registry

• Create session metadata storage (JSON file in ~/.claude-wingman/sessions.json)
• Track: session name, directory, start time, last command, PID
• Update registry when sessions start/stop

Phase 2: Status Detection

• Check if tmux session exists
• Capture recent pane output
• Detect status:
  • ✅ Working (actively executing)
  • ⏸️ Idle (waiting for next command)
  • 🚨 Waiting (approval prompt pending)
  • ❌ Error (crashed or errored)
  • 🎉 Done (completed task)

Phase 3: Dashboard Command

• wingman dashboard command
• Format table output (use column or printf)
• Color coding for status (green/yellow/red)
• Sort by activity (active → idle → waiting)

Phase 4: Auto-Cleanup

• Detect ended sessions and remove from registry
• Archive completed session logs
• Option to manually cleanup: wingman cleanup

Acceptance Criteria

• Dashboard shows all active sessions
• Status is accurate (matches actual session state)
• Updates when sessions start/stop
• Works with 0 sessions (shows 'No active sessions')
• Works with 10+ sessions (readable output)

Testing Plan

1. Start 3 sessions in different states
2. Run wingman dashboard
3. Verify all sessions appear with correct status
4. Stop one session, verify dashboard updates
5. Test with no active sessions