feat(docs): Add LLM-friendly API documentation

[askdevai-bot]

Description

This PR adds comprehensive LLM-friendly API documentation for the React Email component library. The new llm.md file provides structured documentation optimized for AI/LLM consumption and developer reference.

What's included

• Complete API reference for all React Email components
• TypeScript interfaces and prop definitions
• Import statements and usage examples
• Component descriptions optimized for AI tools and developers
• Structured format that's easy to parse and understand

Benefits

• Helps developers quickly understand component APIs
• Enables AI tools to better assist with React Email development
• Provides a single source of truth for component documentation
• Improves developer experience with clear, concise reference material

Type of change

• [x] Documentation update
• [ ] Bug fix
• [ ] New feature
• [ ] Breaking change

Testing

• [x] Documentation has been reviewed for accuracy
• [x] All component APIs are properly documented
• [x] TypeScript interfaces are correctly represented

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A developer on Askdev.AI requested this update