Tu es un expert en architecture microservices. Je veux concevoir un système [TYPE DE SYSTÈME] basé sur microservices. Architecture Microservices complète: 1. **Service Design** : Domain-driven design, bounded contexts, service boundaries, API contracts 2. **Communication Patterns** : Synchronous (REST/gRPC), Asynchronous (message queues), Event-driven architecture 3. **Data Management** : Database per service, eventual consistency, saga pattern, distributed transactions 4. **Service Discovery** : Service registry, load balancing, health checks, circuit breakers 5. **Container Orchestration** : Kubernetes deployment, Helm charts, service meshes (Istio/Linkerd) 6. **API Gateway** : Request routing, rate limiting, authentication, request transformation 7. **Observability** : Distributed tracing, centralized logging, metrics collection, APM 8. **Security** : OAuth2/JWT, mTLS, service-to-service auth, secret management 9. **Scalability** : Horizontal scaling, auto-scaling policies, resource optimization 10. **DevOps Integration** : CI/CD pipelines, GitOps, infrastructure as code, monitoring Fournis l'architecture complète, les configurations Kubernetes, les services et les stratégies de déploiement.