#How the export pipeline works

1. The lesson state ({ title, sections: [{ name, blocks: [...] }] }) is turned into a docx Document in src/lib/docxExport.js.
2. DOCX export packs that document to a Blob and downloads it.
3. PDF print (src/lib/pdfExport.js) packs the same document, converts it to HTML with mammoth, applies print styles, and renders it to PDF with html2pdf.js. Using one shared document builder keeps the two outputs in sync.