🧪 Setup comprehensive testing infrastructure and production-grade Docker compose orchestrations

[beginwebdev2002]

🎯 What

• Configured frontend Vitest unit testing suite properly targeting Angular standalone components.
• Engineered 11 distinct Jest test suites mapping critical backend business logic.
• Crafted an extensive Playwright End-To-End automation representing the core "Client Login -> Select Treatment -> Secure Booking" pipeline.
• Overhauled infrastructure logic via a unified multi-stage Dockerfile and robust docker-compose orchestration.

📊 Coverage

• Frontend unit tests (npm run test) pass reliably via jsdom testing logic.
• Backend logic coverage exceeds 80% for all mapped services via robust dependency mocking (npm run test:cov).
• Playwright critical paths properly navigate virtual components asserting correct flow endpoints.

✨ Result

• Stable, automated, and deterministic Continuous Integration capabilities.
• Simplified production builds leveraging Nginx for frontend logic and optimized Node-alpine for microservices.
• Updated documentation matching latest container orchestration logic and system topography mapping.

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PR created automatically by Jules for task 12235089692165249804 started by @beginwebdev2002

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