fix: queue native quit after automation commands

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

@@ -287,9 +287,10 @@ internal sealed class FirstLimitedApplyAutomationCoordinator
         RequestControlledExit(safeToExitNow);
     }
 
-    // AutoCAD's direct Application.Quit can leave a startup-script host alive.
-    // Dispatching the native QUIT command from the next quiescent Idle cycle
-    // preserves normal command shutdown semantics.
+    // The managed Application.Quit call can leave a startup-script host alive
+    // when it is invoked from a CommandEnded callback. Queue AutoCAD's native
+    // QUIT command instead; the command processor runs it after the current
+    // public PXP-OA command has fully returned and discards every open drawing.
     private void RequestControlledExit(bool idleSafe = false)
     {
         if (exitQueued) return;
@@ -315,21 +316,14 @@ internal sealed class FirstLimitedApplyAutomationCoordinator
         {
             if (exitHandlerSubscribed) AcadApplication.Idle -= OnExitIdle;
             exitHandlerSubscribed = false;
-            // Do not close a cached automation document and then reuse it. Resolve
-            // the currently-live document only at the final quiescent callback.
-            // Only documents opened by this coordinator may be closed. Keep no
-            // document reference after closing it; DocumentDestroyed can run
-            // immediately as part of CloseAndDiscard.
-            foreach (var opened in automationOpenedDocuments.ToArray().Reverse())
-            {
-                transitions.Add("AutomationDocumentCloseRequested");
-                opened.CloseAndDiscard();
-            }
+            if (document is null) throw new InvalidOperationException("AUTOMATION_EXIT_DOCUMENT_UNAVAILABLE");
+            transitions.Add("NativeQuitCommandQueued");
+            // Persist the exit boundary before handing control back to AutoCAD;
+            // process termination can otherwise prevent the final evidence flush.
+            TryWriteEvidence(state == CoordinatorState.Completed, null);
+            document.SendStringToExecute("_.QUIT _N ", true, false, false);
+            document = null;
             automationOpenedDocuments.Clear();
-            // Application.Quit alone leaves the script host alive. Close the
-            // live document first, then request normal application shutdown.
-            transitions.Add("ApplicationQuitRequested");
-            AcadApplication.Quit();
         }
         catch (System.Exception exception)
         {