Use when the user wants the full public brief for one brand whose slug you already have. Returns its published market standings, trends, topics, questions, sources and evidence, as the public page shows them. Field names keep their code names: needs[] are the topics the brand is ranked in (rank is its place on the topic's page, tied when it shares that place, share from 0 to 1; rank is null where no topic page ranks it), platforms are AI engines and competitors are rivals. Each mentionRate is a fraction of answers over its own window, so overall, markets[] and questions[] can differ; themes[].visibility is a share of recommendations, not of answers. Next: parse_search for rivals or markets it names.