Address Claude review feedback

- Move onBackgroundVisibilityChange / onBackgroundOpacityChange after the
  ...layerControlConfig spread so the wired basemap callbacks can never be
  silently overridden by a future key in the config object.

Author: giswqs

packages/map/src/map-controller.ts

@@ -1071,16 +1071,17 @@ export class MapController {
       panelWidth: 340,
       panelMinWidth: 240,
       panelMaxWidth: 450,
+      ...layerControlConfig,
       // The control toggles the basemap internally; mirror the change into the
       // store (the source of truth) so external basemap UI — e.g. the left
       // layer panel's visibility icon and opacity slider — stays in sync.
+      // Placed after the spread so these wired callbacks always win.
       onBackgroundVisibilityChange: (visible) => {
         useAppStore.getState().setBasemapVisible(visible);
       },
       onBackgroundOpacityChange: (opacity) => {
         useAppStore.getState().setBasemapOpacity(opacity);
       },
-      ...layerControlConfig,
     });
     this.map.addControl(
       this.layerControl,