- Add cascade-watch command for live repo monitoring with Spider Mascot
- Add cascade-check command for on-demand file scanning
- Add cascade-install-hook to auto-watch new git clones
- Implement SessionWatcher with background threading and lockfile management
- Add SpiderMascot with idle/scanning/success/warning states
- Update README and QWEN.md with new commands and workflows
- Fix dependency imports (google-cloud-storage, docker)
- Add robust error handling for missing Docker/repos

Closes