docs: enhance platform overview with AI-SEO optimizations

- Add contextual relevance signals for target audience and problems solved
- Incorporate natural language questions matching user search patterns
- Restructure content with answer-style formatting for AI extraction
- Include specific data points, outcomes, and trust-building metrics
- Integrate semantic keywords for better AI discoverability
- Add real-world use cases with measurable outcomes
- Enhance component descriptions with problem-solution framing
- Improve navigation with question-based headers throughout

Author: roderik