CardHeader from @kibrisyazilim/design-system. Use via `window.KibrisDS.CardHeader` (bundle loaded from the root `_ds_bundle.js`).

## Props

```ts
interface CardHeaderProps {
  /** Heading text. Rendered as the card's title. */
  title?: React.ReactNode;
  /** Secondary line under the title. */
  description?: React.ReactNode;
  /** Trailing content — usually a Button or Badge. */
  actions?: React.ReactNode;
  className?: string;
  id?: string;
  style?: CSSProperties;
  children?: React.ReactNode;
}
```