Add complete color manipulation interface to playground:
**New Components:**
- Slider component - Customizable range input with label and value display
- Smooth animations on thumb hover
- Keyboard accessible
- Shows current value with optional suffix
- Tailwind-styled for consistency
- ManipulationPanel component - Full color manipulation controls
- Lighten/Darken sliders (0-100% range)
- Saturate/Desaturate sliders (0-100% range)
- Hue rotation slider (-180° to +180°)
- Complementary color quick action
- All operations integrated with Pastel API
- Toast notifications for success/error
- Loading states during API calls
**Playground Enhancements:**
- Replaced placeholder quick action buttons with ManipulationPanel
- Full integration with color manipulation mutations
- Real-time color updates after each operation
- User-friendly feedback with toast messages
- Amount controls for precise adjustments
**Features:**
- Live preview of manipulation results
- Configurable amounts before applying
- Success/error handling with helpful messages
- Disabled state during API operations
- Smooth user experience with immediate feedback
**API Integration:**
- useLighten, useDarken mutations
- useSaturate, useDesaturate mutations
- useRotate for hue rotation
- useComplement for complementary colors
- All mutations with proper error handling
Build successful! Color manipulation tools fully functional.
Next: Navigation, theme system, and additional UI components.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>