Tier 0: render what the services already decided, honestly

Claude-Session: https://claude.ai/code/session_01Ms2FbjQy31TVf3CEvQhGM8

config/dot/quickshell/services/Notifs.qml

@@ -33,8 +33,25 @@ Singleton {
     property var popups: []
 
     // Suppresses toasts entirely. Notifications still reach history.
+    //
+    // Turning it ON also sweeps the banners already up -- Do Not Disturb that
+    // leaves the current interruptions running until they time out is a
+    // switch that takes effect later, which nobody means by it. Swept
+    // transients get the same scheduled release the DND arrival path gives
+    // them, so nothing stays tracked forever; everything else is already in
+    // history.
     property bool doNotDisturb: false
 
+    onDoNotDisturbChanged: {
+        if (!root.doNotDisturb || root.popups.length === 0)
+            return;
+        for (const notification of root.popups) {
+            if (notification.transient)
+                root.scheduleTransientExpiry(notification);
+        }
+        root.popups = [];
+    }
+
     // Cleared when the notification center is opened. The bar binds to this.
     property int unreadCount: 0