- Add new upstream PHP-FPM servers to Nginx configuration for enhanced load balancing.
- Introduce Elastic APM PHP agent in `php.ini` and update Dockerfile for better dependency management.
- Secure Kibana and Elasticsearch connections in Metricbeat/Filebeat configurations with credentials.
- Remove unused PHP dependencies from `composer.json` and `composer.lock`.
- Configure Nginx to use structured JSON access logs and add request ID headers.
- Define upstream pool for PHP-FPM with load-balancing support.
- Integrate Filebeat for log ingestion across Nginx and PHP logs.
- Add `.env.example` and README for local TLS setup guidance.
- Extend Dockerfile with PHP extensions (GD, Redis, etc.) and Composer dependency installs.
- Add custom PHP configuration for Redis-backed session storage.