Complete the "discover, don't track" refactoring: - checkGUPPViolations: use tmux.IsClaudeRunning() instead of agent_state - checkOrphanedWork: derive dead agents from tmux, not agent_state=dead - assessStaleness: rely on HasActiveSession (tmux), not agent_state Non-observable states (stuck, awaiting-gate) are still respected. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>