List files in a specific folder with pagination. Returns file names, types, sizes, and IDs. The Razuna asset grid displays the returned thumbnails. Use thumbnail_url whenever provided, including for documents and URL bookmarks; file type does not determine thumbnail availability. The grid includes expandable descriptions and keywords. In ChatGPT, respond in plain text only and refer to the grid. Never add image groups, carousels, web previews, or a second gallery, even when labeled illustrative. If the client cannot display the grid, use only the exact returned thumbnail URLs and Razuna links. Do not search the web or generate illustrative replacement images. A returned URL is not proof that the client loaded the image; report a preview failure only if observed.