Add WaitForShellReady call before SendKeys in all agent managers
(deacon, mayor, witness, refinery). This prevents intermittent
"can't find pane" errors that occur when the tmux session is
created but the shell isn't ready to receive input yet.
The issue manifests under load (e.g., during `gt up` when multiple
agents start in sequence) where the 200ms delay in SendKeysDelayed
isn't sufficient for the pane to be fully initialized.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
- Create mayor.Manager for mayor lifecycle (Start/Stop/IsRunning/Status)
- Create deacon.Manager for deacon lifecycle with respawn loop
- Move session.Manager to polecat.SessionManager (clearer naming)
- Add zombie session detection for mayor/deacon (kills tmux if Claude dead)
- Remove duplicate session startup code from up.go, start.go, mayor.go
- Rename sessMgr -> polecatMgr for consistency
- Make witness/refinery SessionName() public for status display
All agent types now follow the same Manager pattern:
mgr := agent.NewManager(...)
mgr.Start(...)
mgr.Stop()
mgr.IsRunning()
mgr.Status()
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
