docs: update tools ecosystem and best practices documentation

docs(backend): update resilience, performance optimization, and testing documentation

docs(backend): update deployment strategies, security, and observability documentation

update database patterns and communication docs

Added introduction and service architecture docs

docs(frontend): refine best practices and upgrade large-scale React architecture guide

docs(frontend): add comprehensive large-scale React architecture guide

Update event-driven architecture documentation

docs(cqrs): update benefits and case study documentation

updates on the ui

docs: Add comprehensive CQRS pattern documentation

docs: Add comprehensive microservices documentation

Add case study and communication pattern documentation for microservices

Refactor monolithic architecture docs: replace readme.md with README.md and update examples, pros-cons, and use-cases content

Add content to monolithic architecture README