fix project names

csharp-oop-simplified1/Domain/AggregateRoot.cs

@@ -0,0 +1,7 @@
+namespace CsharpOopSimplified1.Domain;
+
+/// Conventional DDD base type for aggregates
+public abstract class AggregateRoot<TId>
+{
+    public TId Id { get; protected set; } = default!;
+}