fix: change Draw card to pink gradient to match footer color

- Created new gradient-pink-rose utility (pink to rose)
- Updated Draw tool to use gradient-pink-rose instead of gradient-orange-pink
- Draw card now displays pink (#ec4899) matching footer link color
- Paint retains gradient-orange-pink for orange identity

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

components/ToolsGrid.tsx

@@ -77,7 +77,7 @@ const tools = [
     title: 'Draw',
     description: 'Virtual whiteboard for sketching hand-drawn style diagrams. Create flowcharts, wireframes, and visual brainstorming with collaborative editing.',
     url: 'https://draw.kit.pivoine.art',
-    gradient: 'gradient-orange-pink',
+    gradient: 'gradient-pink-rose',
     accentColor: '#ec4899',
     badges: ['Collaborative', 'Open Source', 'Free'],
     icon: (