fix(ui): render polished SSR-safe component variants

packages/ui/test/ui.test.ts

@@ -85,6 +85,8 @@ test("component-system CSS includes responsive, theme-token, focus, and reduced-
   expect(css).toContain(".wire-visually-hidden");
   expect(css).toContain(".wire-catalog-card--channel::before");
   expect(css).toContain(".wire-catalog-card--integration::before");
+  expect(css).toContain('[data-show="false"]');
+  expect(css).toContain("display: none !important");
 });
 
 test("page shells leave background ownership to the page", () => {