ci: consolidate platform pipelines and test prerequisites on macOS support

MeetingAssistant.Tests/MacOsDesktopControlManifestTests.cs

@@ -1,8 +1,6 @@
 using MeetingAssistant.LaunchProfiles;
 using MeetingAssistant.MacOs;
 using MeetingAssistant.Workflow;
-using MeetingAssistant.Notifications;
-using Microsoft.AspNetCore.Mvc.Testing;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
 
@@ -10,33 +8,17 @@ namespace MeetingAssistant.Tests;
 
 public sealed class MacOsDesktopControlManifestTests
 {
-    [Fact]
-    public void AutomaticWorkflowChangeCannotSilentlyLoseItsPromptOnMacOs()
-    {
-        IWorkflowRulesEditorWindowService service = new MacOsWorkflowRulesEditorWindowService(
-            Options.Create(new MeetingAssistantOptions()));
-
-        Assert.Throws<PlatformNotSupportedException>(() => service.ShowWithPrompt("Update meeting rules"));
-    }
-
-    [Fact]
-    public async Task MacOsApplicationDeclinesUnavailableAutomaticApprovals()
-    {
-        using var factory = new WebApplicationFactory<Program>();
-        var approval = factory.Services.GetRequiredService<AgentApprovalService>();
-
-        Assert.False(await approval.ConfirmAsync("Test approval", "Do not apply a change", CancellationToken.None));
-    }
-
+#if !WINDOWS
     [Fact]
     public void MacOsApplicationRegistersARealInteractiveAgentWindow()
     {
-        using var factory = new WebApplicationFactory<Program>();
+        using var factory = new IsolatedApplicationFactory();
 
         var service = factory.Services.GetRequiredService<IWorkflowRulesEditorWindowService>();
 
         Assert.IsType<MacOsWorkflowRulesEditorWindowService>(service);
     }
+#endif
 
     [Fact]
     public void ManifestPreservesConfiguredWindowsEquivalentShortcutsAndControlEndpoints()