Cards: export_card (CSV/XLSX/JSON), create_model (type=model para fuentes MBQL).
Documents: prosemirror_card_embed helper (resizeNode envolviendo cardEmbed),
validacion automatica contra whitelist TipTap antes de enviar, copy_document
refactorizado al endpoint nativo POST /api/document/:id/copy.
Docs: dataset_query legacy vs MBQL5, template-tags, whitelist de nodos.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
