Update README.md for SecureCleanApiWaf project

Significantly revised the README.md to reflect the new project name "SecureCleanApiWaf" and highlight its enterprise-grade features, including .NET 8, Blazor, CQRS, Clean Architecture, JWT Authentication, and Azure Integration. Added various technology badges, introduced a "How to Contribute" section, and included an "Implementation Status Summary" table. Expanded the "Future Features" section and updated the "Support & Contact" information. Overall, these changes improve clarity, structure, and engagement for potential contributors and users.

Author: dariemcarlosdev