* Remove deprecated Nginx configuration files and scripts, including Dockerfiles, environment scripts, and configuration templates, to streamline the project structure.
* Update environment configuration and Docker setup for proxy services
- Added LISTEN_PORT and LISTEN_SSL_PORT variables to .env.example and related files.
- Updated Docker Compose files to reference new port variables instead of deprecated NGINX_PORT.
- Adjusted README and variable documentation to reflect changes in port configuration.
- Changed build context for proxy services to use the new directory structure.
* Refactor port configuration in environment and Docker files
- Renamed LISTEN_PORT and LISTEN_SSL_PORT to LISTEN_HTTP_PORT and LISTEN_HTTPS_PORT in .env.example and related files.
- Updated Docker Compose configurations to reflect the new port variable names.
- Adjusted documentation in README and variables.env to ensure consistency with the new naming conventions.
