Bugfix Sprint: 2026-01-10

# Bugfix Sprint: 2026-01-10

## Critical Priority (Blocks Users)

### #646 - Plugin bricks Claude Code - stdin fstat EINVAL crash
- **Impact**: Plugin completely bricks Claude Code on Linux. Users cannot recover without manual config editing.
- **Root Cause**: Bun's stdin handling causes fstat EINVAL when reading piped input
- **Related Discussion**: Check if this is a Bun upstream issue
- [ ] Investigate stdin handling in hook scripts
- [ ] Test on Linux with stdin piping
- [ ] Implement fix

### #623 - Crash-recovery loop when memory_session_id not captured
- **Impact**: Infinite loop consuming API tokens, growing queue unbounded
- **Root Cause**: memory_session_id not captured, causes repeated crash-recovery
- [ ] Add null/undefined check for memory_session_id
- [ ] Add circuit breaker for crash-recovery attempts

## High Priority

### #638 - Worker startup missing JSON output causes hooks to appear stuck
- **Impact**: UI appears stuck during worker startup
- [ ] Ensure worker startup emits proper JSON status
- [ ] Add progress feedback to hook output