- Move Sessions class to anonymous namespace in .cpp file
- Export only Type SessionsId() in header
- Use builder pattern with custom buildMethod for widget creation
- Handle highlights registration through WidgetContext
- Rename local Type enum to DeviceType to avoid conflict with Settings::Type
- Update all references to Sessions::Id() in other files to use SessionsId()
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>