VideoHighlightsHighlightItem

{
    "event_id": "evt-1",
    "event_timestamp": 1710000100,
    "score": 9,
    "screened_url": "https://example.com/source.mp4",
    "screened_poster_url": "https://example.com/posters/source.jpg",
    "segment_url": "https://example.com/segment.mp4",
    "segment_poster_url": "https://example.com/posters/segment.jpg",
    "highlight_profile": "pet",
    "segment": {
        "start_time": "00:01",
        "end_time": "00:05",
        "duration_seconds": 4,
        "description": "宠物跳跃",
        "score": 9,
        "reason": "动作完整且画面清晰"
    }
}