docs: add CLAUDE.md for project guidance and development instructions

- Introduced CLAUDE.md to provide comprehensive documentation for the api-console v6 project.
- Included sections on project overview, essential commands for development, testing, building, and code quality.
- Detailed architecture, usage modes, component hierarchy, and AMF model architecture.
- Outlined event-driven communication, page state management, and testing strategy.

This documentation aims to enhance onboarding for new contributors and ensure consistent development practices.

Author: alexpmule