- FormatHTML renders with goldmark html.WithUnsafe(), as Winter's
Markdown::parse passes raw HTML through, so an admin save, an import or
an API write no longer turns imported HTML into raw HTML omitted
- rejectUnsafe still runs after the render and refuses script, iframe,
object and embed tags, event handlers and javascript, vbscript and data
URLs; API response shapes are unchanged
- TestFormatHTMLKeepsRawHTML covers HTML paragraphs and a raw footer