Restore the vibrant color palette from the pre-refactoring version while
maintaining shadcn/ui component architecture and modern design patterns.
## Color Scheme Restoration
### Button Component
- **default variant**: Blue primary (`bg-blue-500`) - matches old `primary`
- **destructive variant**: Red (`bg-red-500`) - matches old `danger`
- **secondary variant**: Gray text (`text-gray-500`) - matches old `secondary`
- **ghost variant**: Transparent hover (`hover:bg-gray-100`) - matches old `ghost`
- **mcp variant**: Emerald green (`bg-emerald-500`) - matches old `mcp`
- Updated border-radius to `rounded-lg` for consistency
### CSS Variables
- Set `--primary` to blue (`hsl(217 91% 60%)` ≈ `bg-blue-500`)
- Added complete shadcn/ui theme variables for light/dark modes
- Maintained semantic color tokens for maintainability
### Component-Specific Colors
- **"Currently Using" badge**: Green (`bg-green-500/10 text-green-500`)
- **Delete button hover**: Red (`hover:text-red-500 hover:bg-red-100`)
- **MCP button**: Emerald green with minimum width (`min-w-[80px]`)
- **Links/URLs**: Blue (`text-blue-500`)
## Benefits
- ✅ Restored original vibrant UI (blue, green, red accents)
- ✅ Maintained shadcn/ui component system (accessibility, animations)
- ✅ Easy global theming via CSS variables
- ✅ Consistent design language across all components
- ✅ Code formatted with Prettier (shadcn/ui standards)
## Files Changed
- `src/index.css`: Added shadcn/ui theme variables with blue primary
- `src/components/ui/button.tsx`: Restored all original button color variants
- `src/components/providers/ProviderCard.tsx`: Green badge for current provider
- `src/components/providers/ProviderActions.tsx`: Red hover for delete button
- `src/components/mcp/McpPanel.tsx`: Use `mcp` variant for consistency
- `src/App.tsx`: MCP button with emerald color and wider width
The UI now matches the original colorful design while leveraging modern
shadcn/ui components for better maintainability and user experience.
This commit completes Stage 2.5-2.6 of the refactoring plan by:
- Consolidating 8 provider form files (1941+ lines) into a single
unified ProviderForm component (353 lines), reducing code by ~82%
- Implementing modern form management with react-hook-form and zod
- Adding preset provider categorization with grouped select UI
- Supporting dual-mode operation for both Claude and Codex configs
- Removing redundant subcomponents:
- ApiKeyInput.tsx (72 lines)
- ClaudeConfigEditor.tsx (205 lines)
- CodexConfigEditor.tsx (667 lines)
- EndpointSpeedTest.tsx (636 lines)
- KimiModelSelector.tsx (195 lines)
- PresetSelector.tsx (119 lines)
Key improvements:
- Type-safe form values with ProviderFormValues extension
- Automatic template value application for presets
- Better internationalization coverage
- Cleaner separation of concerns
- Enhanced UX with categorized preset groups
Updates AddProviderDialog and EditProviderDialog to pass appType prop
and handle preset category metadata.