Document export schemas hub and chat-export/sharegpt minis. Co-authored-by: Cursor <cursoragent@cursor.com>
docs(ru): full Export-Formats-RU + CONTRIBUTING.ru link Co-authored-by: Cursor <cursoragent@cursor.com>
docs: add Export-Formats wiki (MD/JSON/YAML semantics) Co-authored-by: Cursor <cursoragent@cursor.com>