Promote cornerRadius + focus tokens to qs.Commons.Style singleton

default/quickshell/omarchy-shell/Ui/CursorSurface.qml

@@ -1,4 +1,5 @@
 import QtQuick
+import qs.Commons
 
 // Shared visual chrome for keyboard-and-mouse-navigable items inside a panel.
 // Contract: items must NOT read `containsMouse` for color/border. Mouse
@@ -14,7 +15,7 @@ Rectangle {
   property color foreground: "#cacccc"
   property color fill: Qt.rgba(foreground.r, foreground.g, foreground.b, 0.18)
 
-  radius: 4
+  radius: Style.cornerRadius
   color: (hasCursor || current) ? fill : "transparent"
   border.width: hasCursor ? 1 : 0
   border.color: foreground

default/quickshell/omarchy-shell/Ui/KeyboardPanel.qml

@@ -193,7 +193,7 @@ PanelWindow {
     color: Color.popups.background
     border.color: Color.popups.border
     border.width: 2
-    radius: 0
+    radius: Style.cornerRadius
     opacity: root.open ? 1.0 : 0
     Behavior on opacity {
       NumberAnimation { duration: 140; easing.type: Easing.OutCubic }

default/quickshell/omarchy-shell/Ui/PanelActionButton.qml

@@ -1,4 +1,5 @@
 import QtQuick
+import qs.Commons
 
 // Small (22×22 by default) icon button used at the right edge of panel rows
 // for inline actions — forget network, confirm passphrase, unpair device,
@@ -27,7 +28,7 @@ Rectangle {
 
   implicitWidth: size
   implicitHeight: size
-  radius: 4
+  radius: Style.cornerRadius
 
   color: mouse.containsMouse && root.enabled
     ? Qt.rgba(hoverColor.r, hoverColor.g, hoverColor.b, 0.20)

default/quickshell/omarchy-shell/Ui/PillButton.qml

@@ -1,5 +1,6 @@
 import QtQuick
 import QtQuick.Controls
+import qs.Commons
 
 Rectangle {
   id: root
@@ -58,7 +59,7 @@ Rectangle {
 
   implicitWidth: row.implicitWidth + horizontalPadding * 2
   implicitHeight: row.implicitHeight + verticalPadding * 2
-  radius: 4
+  radius: Style.cornerRadius
 
   // Hot = mouse hover OR keyboard cursor. Pressed wins over both; otherwise
   // hot beats `active` (so a cursor on an already-active pill still reads

default/quickshell/omarchy-shell/Ui/PopupCard.qml

@@ -119,7 +119,7 @@ PopupWindow {
     color: Color.popups.background
     border.color: Color.popups.border
     border.width: 2
-    radius: 0
+    radius: Style.cornerRadius
     opacity: root.open ? 1.0 : 0
 
     Behavior on opacity {