The @parcel/watcher native callback fires outside the Instance
AsyncLocalStorage context. Bus.publish silently throws because
Instance.directory is unavailable, so watcher events never reach
subscribers. This breaks live branch detection in the TUI.
- Replace glob patterns with Set lookup for common folders to speed up matching
- Use path.sep for cross-platform compatibility on Windows/Unix systems
- Add comprehensive test coverage for nested and non-nested folder matching
- Simplify implementation by removing unnecessary caching complexity
