backend/src/types.d.ts

declare module "@citation-js/core";
declare module "@citation-js/plugin-bibtex";
declare module "@citation-js/plugin-csl";
declare module "@citation-js/plugin-doi";

// Playwright is optional - only available in Docker production image
declare module "playwright" {
  export const chromium: {
    launch(options?: Record<string, unknown>): Promise<any>;
  };
}