restore niri specifics, gracefully fail

modules/Bar.qml

@@ -10,6 +10,7 @@ PanelWindow {
     required property var screen
 
     color: "transparent"
+    layer: WlrLayer.Bottom
 
     anchors {
         top: true
@@ -33,39 +34,31 @@ PanelWindow {
         spacing: 0
 
         // ---- left ----
-        Item {
-            Layout.fillWidth: true
-            Layout.fillHeight: true
-
         RowLayout {
-                anchors.left: parent.left
-                anchors.verticalCenter: parent.verticalCenter
+            Layout.fillWidth: true
             spacing: 8
 
-                // M.Workspaces {}
+            M.Workspaces {}
             M.Tray { bar: bar }
             M.WindowTitle { Layout.maximumWidth: 400 }
-            }
+            Item { Layout.fillWidth: true }
         }
 
         // ---- center ----
         RowLayout {
             spacing: 8
+            Layout.alignment: Qt.AlignVCenter
 
             M.Clock {}
             M.Notifications {}
         }
 
         // ---- right ----
-        Item {
-            Layout.fillWidth: true
-            Layout.fillHeight: true
-
         RowLayout {
-                anchors.right: parent.right
-                anchors.verticalCenter: parent.verticalCenter
+            Layout.fillWidth: true
             spacing: 12
 
+            Item { Layout.fillWidth: true }
             M.Mpris {}
             M.Volume {}
             M.Bluetooth {}
@@ -83,4 +76,3 @@ PanelWindow {
         }
     }
 }
-}

modules/Workspaces.qml

@@ -1,7 +1,14 @@
 import QtQuick
 import QtQuick.Layouts
 
-// Niri workspace support disabled — Quickshell.Services.Niri not available
 RowLayout {
     spacing: 4
+
+    Loader {
+        source: "WorkspacesInner.qml"
+        onStatusChanged: {
+            if (status === Loader.Error)
+                source = "";
+        }
+    }
 }

modules/WorkspacesInner.qml

@@ -0,0 +1,36 @@
+import QtQuick
+import QtQuick.Layouts
+import Quickshell.Services.Niri
+import "." as M
+
+RowLayout {
+    spacing: 4
+
+    Repeater {
+        model: Niri.workspaces
+
+        delegate: Rectangle {
+            required property var modelData
+
+            implicitWidth: 24
+            implicitHeight: 20
+            radius: 4
+            color: modelData.isFocused
+                ? M.Theme.base0D
+                : (modelData.isActive ? M.Theme.base03 : M.Theme.base02)
+
+            Text {
+                anchors.centerIn: parent
+                text: modelData.idx ?? modelData.id
+                color: modelData.isFocused ? M.Theme.base00 : M.Theme.base05
+                font.pixelSize: M.Theme.fontSize
+                font.family: M.Theme.fontFamily
+            }
+
+            MouseArea {
+                anchors.fill: parent
+                onClicked: Niri.dispatch(["action", "focus-workspace", String(modelData.id)])
+            }
+        }
+    }
+}