Load the Cesium SDK and its widget styles only when a Cesium globe first starts

build/vite.js

@@ -186,7 +186,9 @@ export function createBrowserViteConfig({
       apiResponseHeadersPlugin(),
       // Next, so no provider route answers a Host the server does not allow.
       hostCheckPlugin(),
-      cesium(),
+      // Keep the SDK asset serving/copying and external imports, but let the
+      // scene load the script and stylesheet only when Cesium is requested.
+      { ...cesium(), transformIndexHtml: undefined },
       // Application views are Vue single-file components.
       vue(VUE_PLUGIN_OPTIONS),
       ...plugins,