Summary from @kuppwest/apple-clean. Use via `window.KuppwestAppleClean.Summary` (bundle loaded from the root `_ds_bundle.js`). Wrap the tree in `<Page>` (full provider chain in README.md — components read theme/i18n from that context).

Quiet one-line product summary at the very top of the listing
(`.kwac-summary`): small, centered, light-gray text carrying schema.org
`Product` / `description` markup. Place it first inside `Page`, before `Header`.

## Props

```ts
interface SummaryProps {
  /** One or two plain sentences describing the product for machines and screen readers. */
  children: React.ReactNode;
}
```