image: Experimental_GeneratedImage requires uint8Array, but Image renders from base64 alone

[hamchowderr]

Summary

ImageProps extends Experimental_GeneratedImage, which makes uint8Array required:

export type ImageProps = Experimental_GeneratedImage & {
  className?: string;
  alt?: string;
};

But the element only ever reads base64 and mediaType. Callers that have those two — an image-generation tool result, a stored image record, anything reconstructed from JSON — are forced to fabricate a uint8Array they don't need and the component never touches.

Suggestion

Make it optional while keeping it accepted:

export type ImageProps = Omit<Experimental_GeneratedImage, "uint8Array"> & {
  uint8Array?: Experimental_GeneratedImage["uint8Array"];
  className?: string;
  alt?: string;
};

Backwards compatible — existing callers passing the full object still typecheck.

Context

Raising as an issue rather than a PR since it changes a public prop type and you may prefer a different shape. Happy to send the patch if the direction is right. We currently carry this as a downstream override and would rather not.