Add comprehensive crash logging improvements to help diagnose mass session death events:
- Add TypeSessionDeath and TypeMassDeath event types for feed visibility
- Log pre-death events before killing sessions (who killed, why)
- Add mass death detection in daemon (3+ deaths in 30s triggers alert)
- Add macOS crash report check in gt doctor
- Support session death events in townlog and feed curator
Closes hq-kt1o6
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implement activity event emission for witness patrol operations:
- patrol_started: When witness begins patrol cycle
- polecat_checked: When witness checks a polecat
- polecat_nudged: When witness nudges a stuck polecat
- escalation_sent: When witness escalates to Mayor/Deacon
- patrol_complete: When patrol cycle finishes
Also adds refinery merge queue events for future use:
- merge_started, merge_complete, merge_failed, queue_processed
New command: `gt activity emit <event-type>` allows agents to emit
events from CLI. Events write to ~/gt/.events.jsonl for gt feed.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements `gt callbacks process` for Mayor/Deacon patrol to handle
callbacks from agents:
- POLECAT_DONE: Log polecat completion
- MERGE_COMPLETED: Close source issue, log merge
- MERGE_REJECTED: Log rejection reason
- HELP/ESCALATION: Forward to overseer
- SLING_REQUEST: Log sling request for spawn
- WITNESS_REPORT: Log rig health status
- REFINERY_REPORT: Log queue status
Also adds EventCallback to townlog for callback processing events.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- polecat.go: Remove unreachable first loop in splitLines (was using filepath.SplitList incorrectly)
- townlog/logger.go: Remove unused Event.JSON() method and json import
- lock/lock.go: Remove unused ErrStaleLock error variable
- refinery/manager.go: Remove unused getTestCommand() method
Note: witness.StatePaused is actually used by cmd/witness.go, not dead code.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
