feat(notifications): add the balloon shell

Reads the daemon's queue through the Notify singleton and draws a balloon
per live notification, bottom-right of DP-1 over conky. Suppression is here,
not in the daemon: dnd withholds low and normal, snooze withholds all, and
the drawer still lists them.

1 files changed, 30 insertions, 0 deletions

diff --git a/notifications/shell.qml b/notifications/shell.qml
new file mode 100644
index 0000000..1b353a3
--- /dev/null
+++ b/notifications/shell.qml
@@ -0,0 +1,30 @@
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+import Quickshell
+import Quickshell.Wayland
+
+ShellRoot {
+    // Quickshell exits once no window is visible, and the balloons are
+    // hidden whenever the queue is empty, so this keeps the shell alive. See
+    // AGENTS.md.
+    PanelWindow {
+        visible: true
+        implicitWidth: 1
+        implicitHeight: 1
+        color: "transparent"
+        exclusionMode: ExclusionMode.Ignore
+        mask: Region {}
+        WlrLayershell.keyboardFocus: WlrKeyboardFocus.None
+    }
+
+    Balloons {}
+}