fix: exit lifecycle probe without document command queue

Plant3D2026/P_Rec_Annot/src/PRecAnnot.Plant3D2026/FirstLimitedApplyAutomation.cs

@@ -330,6 +330,16 @@ internal sealed class FirstLimitedApplyAutomationCoordinator
         {
             if (exitHandlerSubscribed) AcadApplication.Idle -= OnExitIdle;
             exitHandlerSubscribed = false;
+            // LifecycleProbe deliberately opens no drawing. It is already
+            // executing in the first verified Idle callback, where the managed
+            // quit API has been runtime-confirmed to terminate AutoCAD cleanly.
+            if (document is null && string.Equals(config?.Phase, "LifecycleProbe", StringComparison.OrdinalIgnoreCase))
+            {
+                transitions.Add("LifecycleProbeApplicationQuitRequested");
+                TryWriteEvidence(state == CoordinatorState.Completed, null);
+                AcadApplication.Quit();
+                return;
+            }
             if (document is null) throw new InvalidOperationException("AUTOMATION_EXIT_DOCUMENT_UNAVAILABLE");
             transitions.Add("NativeQuitCommandQueued");
             // Persist the exit boundary before handing control back to AutoCAD;

Plant3D2026/P_Rec_Annot/tests/PRecAnnot.Core.Tests/FoundationTests.cs

@@ -105,7 +105,7 @@ public sealed class FoundationTests
         Assert.Contains("AcadApplication.Idle += OnExitIdle", source);
         Assert.Contains("NativeQuitCommandQueued", source);
         Assert.Contains("document.SendStringToExecute(\"_.QUIT _N \", true, false, false);", source);
-        Assert.DoesNotContain("AcadApplication.Quit();", source);
+        Assert.Contains("LifecycleProbeApplicationQuitRequested", source);
     }
 
     [Fact] public void Callback_AfterDocumentDestroyed_DoesNotAccessDocument()
@@ -120,6 +120,7 @@ public sealed class FoundationTests
         var source = File.ReadAllText(Path.Combine(ProjectRoot, "src", "PRecAnnot.Plant3D2026", "FirstLimitedApplyAutomation.cs"));
         Assert.DoesNotContain("MdiActiveDocument", source[source.IndexOf("private void DispatchNativeQuit", StringComparison.Ordinal)..]);
         Assert.Contains("AUTOMATION_EXIT_DOCUMENT_UNAVAILABLE", source);
+        Assert.Contains("if (document is null && string.Equals(config?.Phase, \"LifecycleProbe\"", source);
     }
 
     [Fact] public void TerminalState_IgnoresFurtherCallbacks()