refactor(docs): rename "ClaudeCode" to "Claude Code" across all language versions
chore: add ESLint configuration and update build scripts
style: update component organization and remove unused imports
- Move standalone AI-related files into 8-artificial-intelligence directory
- Move development tools content into 2-development-tools directory
- Move server/backend content into 4-server-and-backend directory
- Create new index files for each section
- Update .gitignore to exclude old backup directories
- Update theme imports for new component locations