feat: add interactive test story for column highlighting with bead interaction
- Create InteractiveWithHighlighting story to test both features together - Showcase backgroundGlow API with clean, subtle styling - Provide debugging interface for testing column highlighting conflicts - Demonstrate proper separation of concerns between highlighting and interaction 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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