Page from @kuppwest/apple-clean. Use via `window.KuppwestAppleClean.Page` (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).

Root wrapper of every Apple Clean surface: renders `<div class="kwac">`, which
carries the color tokens, the Helvetica stack, the 17px/1.6 body type and the
near-white background. Every other component must sit inside a `Page`;
without it the tokens and base styles do not apply.

## Props

```ts
interface PageProps {
  children: React.ReactNode;
  className?: string;
  id?: string;
  style?: CSSProperties;
}
```