Added math-based captcha system to prevent spam on the contact form:
- Created captcha API endpoint with simple arithmetic questions
- Added captcha UI component with refresh functionality
- Integrated captcha verification into contact form submission
- Relaxed spam filters since captcha provides better protection
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
