• Add JSON import/export functionality to presentations list
• Fix HTML sanitizer to allow style tags in layout templates
• Add comprehensive SVG attributes for Mermaid diagram markers
• Create LLM prompt generator for presentation JSON format
• Add sample presentation showcasing SlideShare features
• Clean up diagram-slide layout template
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
