Build a fully self-contained HTML document for the given board snapshot — inline CSS
only, light paper-friendly palette, header (title / generated-at / agent byline), the
positioned board, ownership chips, item-count footer and print-friendly @media print
rules. Deterministic for a given state + options; all text is HTML-escaped.
Build a fully self-contained HTML document for the given board snapshot — inline CSS only, light paper-friendly palette, header (title / generated-at / agent byline), the positioned board, ownership chips, item-count footer and print-friendly
@media printrules. Deterministic for a given state + options; all text is HTML-escaped.Renders the ACTIVE page only — see BuildWhiteboardExportHtmlAllPages for the every-page document.