- Expand README language section with complete list of 19 supported languages
- Add native language names and language codes for each supported language
- Detail language features: manual selection, complete coverage, AI responses
- List comprehensive translation coverage areas (modals, buttons, messages, etc.)
- Update project structure to show language files with descriptions
- Remove auto-detection claims since feature is not working properly
- Change to accurate "manual selection" and "AI-powered translation"
- Fix demo.html to remove false auto-detection advertising

🤖 Generated with [Claude Code](https://claude.ai/code

)

Co-Authored-By: Claude <noreply@anthropic.com>