too much for one commit

tests/EntKube.Provisioning.Tests/Features/DeleteAppHandlerTests.cs

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+using EntKube.Provisioning.Domain;
+using EntKube.Provisioning.Features.Apps.DeleteApp;
+using EntKube.Provisioning.Infrastructure;
+using EntKube.SharedKernel.Domain;
+using FluentAssertions;
+
+namespace EntKube.Provisioning.Tests.Features;
+
+public class DeleteAppHandlerTests
+{
+    private readonly InMemoryAppRepository repository;
+    private readonly DeleteAppHandler handler;
+
+    public DeleteAppHandlerTests()
+    {
+        repository = new InMemoryAppRepository();
+        handler = new DeleteAppHandler(repository);
+    }
+
+    [Fact]
+    public async Task HandleAsync_ExistingApp_DeletesSuccessfully()
+    {
+        // Arrange — An existing app in the repository.
+
+        App app = App.Create(Guid.NewGuid(), Guid.NewGuid(), "API", "api", AppType.Deployment);
+        await repository.AddAsync(app);
+
+        // Act
+
+        Result result = await handler.HandleAsync(app.Id);
+
+        // Assert — The app should be gone from the repository.
+
+        result.IsSuccess.Should().BeTrue();
+        App? deleted = await repository.GetByIdAsync(app.Id);
+        deleted.Should().BeNull();
+    }
+
+    [Fact]
+    public async Task HandleAsync_NonexistentApp_ReturnsFailure()
+    {
+        // Act
+
+        Result result = await handler.HandleAsync(Guid.NewGuid());
+
+        // Assert
+
+        result.IsFailure.Should().BeTrue();
+        result.Error.Should().Contain("not found");
+    }
+}