fix(notif/workspace): reverting some of the previous attempt from timer back to Qt.callLater

Modules/Bar/Widgets/Workspace.qml

@@ -271,20 +271,12 @@ Item {
     Settings.data.dock.pinnedApps = pinnedApps;
   }
 
-  // Deferred to next event-loop iteration via Timer { interval: 0 } to avoid
-  // re-entrant incubation: Qt.callLater() can still fire within the same event
-  // processing cycle, so it is not sufficient. localWorkspaces.append() inside
-  // refreshWorkspaces() causes the Repeater to create WorkspacePill delegates
-  // mid-incubation, corrupting the V4 heap (SIGSEGV in QV4::Object::insertMember).
-  Timer {
-    id: refreshTimer
-    interval: 0
-    onTriggered: root.refreshWorkspaces()
-  }
-
+  // Deferred via Qt.callLater to avoid synchronous ListModel mutations during
+  // signal cascades. Qt.callLater deduplicates by function identity, so rapid
+  // calls from multiple signal handlers coalesce into a single refresh.
   function scheduleRefresh() {
     if (!root.isDestroying)
-      refreshTimer.restart();
+      Qt.callLater(root.refreshWorkspaces);
   }
 
   Component.onCompleted: scheduleRefresh()

Modules/Notification/Notification.qml

@@ -28,11 +28,9 @@ Variants {
 
     property ListModel notificationModel: NotificationService.popupModel
 
-    // Deferred activation to prevent re-entrant QML incubation crash.
-    // Direct binding to notificationModel.count would activate the Loader
-    // synchronously during ListModel.insert(), causing nested incubation
-    // (Loader + inner Repeater both processing the model) which crashes
-    // the V4 engine in QV4::Object::insertMember.
+    // Deferred activation via Qt.callLater to avoid activating the Loader
+    // synchronously during ListModel.insert() (which would cause nested
+    // incubation with the inner Repeater).
     property bool shouldBeActive: false
     active: shouldBeActive || delayTimer.running
 
@@ -43,12 +41,8 @@ Variants {
       repeat: false
     }
 
-    // Deferred activation timer - activates Loader on next event loop iteration
-    Timer {
-      id: activationTimer
-      interval: 0
-      repeat: false
-      onTriggered: root.shouldBeActive = true
+    function activate() {
+      shouldBeActive = true;
     }
 
     Connections {
@@ -56,7 +50,7 @@ Variants {
       function onCountChanged() {
         if (notificationModel.count > 0) {
           if (!root.shouldBeActive) {
-            activationTimer.restart();
+            Qt.callLater(root.activate);
           }
         } else if (root.shouldBeActive) {
           root.shouldBeActive = false;