Checkbox

interface CheckboxSchema {
  type: 'checkbox';
  name?: string;
  label?: string;
  defaultChecked?: boolean;
  checked?: boolean;
  required?: boolean;
  disabled?: boolean | string | { dialect?: string; source: string };   // boolean, predicate expression, or CEL envelope
  description?: string;
  error?: string;
  className?: string;
  wrapperClass?: string;
}