SvelteKit-based WebUI (#14839)

tools/server/webui/.storybook/vitest.setup.ts

@@ -0,0 +1,11 @@
+import { setProjectAnnotations } from '@storybook/sveltekit';
+import * as previewAnnotations from './preview';
+import { beforeAll } from 'vitest';
+
+const project = setProjectAnnotations([previewAnnotations]);
+
+beforeAll(async () => {
+	if (project.beforeAll) {
+		await project.beforeAll();
+	}
+});