pub fn extract(html: &str, format: ContentFormat) -> (String, bool)Expand description
Convert html to the requested format. Owner: parser agent.
Returns (content, fell_back). fell_back is true when the Markdown/Text converter
errored and we degraded to a naive tag strip (lower fidelity) — the caller turns that
into a non-fatal warning. It is always false for Html/None (no conversion).