Remove dead code

shell/plugins/dev-gallery/GalleryPanel.qml

@@ -63,10 +63,7 @@ Item {
   }
 
   // ---- host injections ----------------------------------------------------
-  property var barWidgetRegistry: null
-  property var pluginRegistry: null
   property var shell: null
-  property var manifest: null
 
   // ---- theme --------------------------------------------------------------
   readonly property color foreground: Color.foreground
@@ -104,7 +101,7 @@ Item {
   property string focusSection: "cursor-surface"
   property int selectedIndex: 0
 
-  // Demo state mutated by activation.
+  // Demo state mutated by interaction.
   property string choiceDemoValue: "top"
   property bool toggleDemoOn: true
   property bool toggleSquareOn: false

shell/plugins/dev-gallery/manifest.json

@@ -5,7 +5,10 @@
   "version": "1.0.0",
   "author": "Omarchy",
   "description": "Visual reference for omarchy-shell common UI components. Summon with: omarchy-shell shell summon omarchy.dev-gallery '{}' (or run: omarchy dev ui-preview).",
-  "kinds": ["panel"],
-  "activation": "on-demand",
-  "entryPoints": { "panel": "GalleryPanel.qml" }
+  "kinds": [
+    "panel"
+  ],
+  "entryPoints": {
+    "panel": "GalleryPanel.qml"
+  }
 }