- Implemented StyleTokensModel for managing design tokens
- Added StyleTokensInjector to inject tokens into viewer preview
- 10 essential default tokens (primary, background, foreground, border, spacing, radius, shadows)
- Token storage in project metadata (styleTokens field)
- Real-time CSS variable injection in preview
- Fixed bug: tokens now inject for legacy projects without styleTokens field
- Tested and validated (see TEST-REPORT.md)
MVP does NOT include:
- UI panel for editing tokens
- Token picker component
- Import/export functionality
- Full token set (only 10 essentials)
These features are planned for STYLE-001 Full implementation.