Fetch one issue by website_id + issue number, including its full description, recommendation, affected pages, occurrence detail from the latest report (which page/image/URL, snippets), and comment thread. occurrence_count is the true total; the listed occurrences are a sample when occurrences_truncated is true, and on a capped report full_detail says where every occurrence is. Use comment_on_issue to add analysis or a fix note to the thread.