feat(marketing-pages): add ui/query + barrel + feature test

packages/marketing-pages/src/ui/query.ts

@@ -0,0 +1,14 @@
+type TrpcClient = {
+  marketingPages: {
+    pageBySlug: { queryOptions: (input: { slug: string }) => unknown };
+    siteSettings: { queryOptions: () => unknown };
+  };
+};
+
+export function pageBySlugQuery(client: TrpcClient, slug: string) {
+  return client.marketingPages.pageBySlug.queryOptions({ slug });
+}
+
+export function siteSettingsQuery(client: TrpcClient) {
+  return client.marketingPages.siteSettings.queryOptions();
+}