/**
 * Minimal ambient types for KaTeX — the package ships no declarations and we
 * only use `renderToString`. Keeps the built-in MathML renderer in
 * `engine/plugins/math-view.ts` type-safe without pulling in @types/katex.
 */
declare module 'katex' {
  interface KatexOptions {
    displayMode?: boolean;
    output?: 'html' | 'mathml' | 'htmlAndMathml';
    throwOnError?: boolean;
    [option: string]: unknown;
  }
  const katex: {
    renderToString(tex: string, options?: KatexOptions): string;
  };
  export default katex;
}