Entity Framework Core persistence provider for SourceFlow.Net. Provides production-ready implementations of ICommandStore, IEntityStore, IViewModelStore, and cloud idempotency (duplicate message detection with automatic cleanup) using Entity Framework Core 9.0. Features include flexible configuration with separate or shared connection strings per store type, SQL Server support, Polly-based resilience and retry policies, OpenTelemetry instrumentation for database operations, and full support for .NET 8.0, .NET 9.0, and .NET 10.0. Seamlessly integrates with SourceFlow.Net core framework for complete event sourcing persistence.