- Add the Factory theme to shared theme types and the dashboard theme selector
- Validate persisted color themes against shared constants in useTheme and the pre-hydration init script
- Introduce reusable design tokens for typography, spacing, radius, shadows, and transitions in dashboard styles
- Add Factory-specific dark and light styling overrides for cards, buttons, columns, and theme swatches
- Strengthen theme tests to cover all supported themes, Factory previews, and stylesheet token contracts
- Add Ayu and One Dark to COLOR_THEMES and validThemes arrays
- Add CSS theme variables for both themes in styles.css
- Update ThemeSelector UI to include new theme options
- Extend Theme type to include ayu and one-dark values
- Update tests for ThemeSelector and useTheme hooks
- Add changeset for minor version bump
- Add ThemePreference type and useTheme hook for theme state management
- Create CSS theme architecture with 8 built-in color themes
- Build ThemeSelector component with live preview and keyboard navigation
- Add theme toggle to Header with quick-switch capability
- Integrate Appearance section into SettingsModal
- Wire theme system into App component with system preference detection
- Add comprehensive tests for useTheme, ThemeSelector, and Header
- Include theming documentation in dashboard README
- Add changeset for patch release
