shell: dock reorder, fullscreen detection fix, idle-power, sessiond, misc shell work

- Dock drag-to-reorder for pinned apps (insertion gap, quick-slide vs dwell)
- Fullscreen detection: scan all windows via HyprlandData.windowList
- IdleCoordinator, GlobalStates, Session.qml updates
- Deploy script, qmldir, settings, wallpaper, visualizer fixes
- sessiond server, memory module updates

Co-Authored-By: Claude <noreply@anthropic.com>

surfaces/quickshell/ii-base/services/NetworkTraffic.qml

@@ -1,6 +1,7 @@
 pragma Singleton
 pragma ComponentBehavior: Bound
 
+import qs
 import QtQuick
 import Quickshell
 import Quickshell.Io
@@ -148,7 +149,10 @@ Singleton {
 
     Timer {
         interval: 1000
-        running: true
+        // Souveraine: pause while the display is inactive (idle-power task 4).
+        // The rate math is elapsed-time based, so the first tick after resume
+        // yields one correctly averaged sample rather than a spike.
+        running: GlobalStates.displayActive
         repeat: true
         triggeredOnStart: true
         onTriggered: root.update()