def format_date(date_str: str, source: str) -> str:
    """날짜 형식을 YYYY-MM-DD 로 변환"""
    try:
        match = re.search(r'\d{4}-\d{2}-\d{2}', date_str)
        if match:
            return match.group(0)
        if source == '연합뉴스':
            return datetime.strptime(date_str, '%m-%d %H:%M').strftime('2024-%m-%d')
        return date_str
    except Exception:
        return date_str