A retail company is migrating a monolithic .NET web application packaged as a single Linux container to Azure. The operations team is small, has no Kubernetes experience, and wants to minimize infrastructure management. The application requires deployment slots for zero-downtime releases, integrated authentication with Microsoft Entra ID, and the ability to scale automatically based on HTTP traffic. There is no requirement for complex service-to-service orchestration or multiple microservices. Which compute service should you recommend?