feat: Add theme system with visual editor

- Backend: themes table and API endpoints (CRUD, export, design-tokens)
- Theme store with preview, apply, and persistence
- ThemesPage with collapsible variables editor and live preview
- Components: ColorPicker (HSL), VariableEditor, ThemePreview, ThemeListItem
- Integration: $theme helper for dynamic components, get_design_tokens MCP tool
- Navigation: /themes route with palette icon in toolbar

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
2026-02-13 05:10:18 -06:00
parent d1c0f62fc3
commit b880038b07
19 changed files with 3358 additions and 11 deletions

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