- update is_protected() in box-stability-watcher.py to revoke immunity from bash/zsh processes with RSS >= 2048MB
- update watchers/README.md to document the 2048MB interactive shell threshold
- add unit tests verifying shell protection vs runaway exemption in test_box_stability_watcher.py
- Add dedicated watchers/ project folder with box-stability-watcher.py supervisor
- Monitor host load, memory, swap saturation, and crash-looping services
- Implement tiered mitigations: yellow renicing, orange SIGSTOP pause with 60s grace, red shedding
- Distinguish user-launched agents (allowed on desktop default socket) from automated box workloads
- Wire first-class box stability CLI subcommand and top-line host status in fleet status
- Harden tmux.service with cgroup memory limits to prevent OS freeze and OOM avalanches
- Add 10-test unit test suite covering thresholds, safety whitelist, pause/resume, and isolation