Add BatteryPanel with charge level, power profile settings, prevent sleep toggle, battery health (if available)

Modules/MainScreen/Backgrounds/AllBackgrounds.qml

@@ -69,6 +69,13 @@ Item {
         backgroundColor: panelBackgroundColor
       }
 
+      // Battery
+      PanelBackground {
+        panel: root.windowRoot.batteryPanelPlaceholder
+        shapeContainer: backgroundsShape
+        backgroundColor: panelBackgroundColor
+      }
+
       // Bluetooth
       PanelBackground {
         panel: root.windowRoot.bluetoothPanelPlaceholder

Modules/MainScreen/MainScreen.qml

@@ -10,6 +10,7 @@ import qs.Commons
 import qs.Modules.Bar
 import qs.Modules.Bar.Extras
 import qs.Modules.Panels.Audio
+import qs.Modules.Panels.Battery
 import qs.Modules.Panels.Bluetooth
 import qs.Modules.Panels.Brightness
 import qs.Modules.Panels.Calendar
@@ -33,6 +34,7 @@ PanelWindow {
 
   // Expose panels as readonly property aliases
   readonly property alias audioPanel: audioPanel
+  readonly property alias batteryPanel: batteryPanel
   readonly property alias bluetoothPanel: bluetoothPanel
   readonly property alias brightnessPanel: brightnessPanel
   readonly property alias calendarPanel: calendarPanel
@@ -49,6 +51,7 @@ PanelWindow {
 
   // Expose panel placeholders for AllBackgrounds
   readonly property var audioPanelPlaceholder: audioPanel.panelPlaceholder
+  readonly property var batteryPanelPlaceholder: batteryPanel.panelPlaceholder
   readonly property var bluetoothPanelPlaceholder: bluetoothPanel.panelPlaceholder
   readonly property var brightnessPanelPlaceholder: brightnessPanel.panelPlaceholder
   readonly property var calendarPanelPlaceholder: calendarPanel.panelPlaceholder
@@ -168,6 +171,12 @@ PanelWindow {
       screen: root.screen
     }
 
+    BatteryPanel {
+      id: batteryPanel
+      objectName: "batteryPanel-" + (root.screen?.name || "unknown")
+      screen: root.screen
+    }
+
     BluetoothPanel {
       id: bluetoothPanel
       objectName: "bluetoothPanel-" + (root.screen?.name || "unknown")