BgmListResponse(BgmListResponse)

{
    "items": [
        {
            "bgm_file_id": "file_bgm_abc123",
            "demo_url": "https://cdn.example.com/bgm/demo_501.mp3",
            "description": "节奏轻快，适合日常Vlog、美食、旅行类视频配乐",
            "id": 501,
            "name": "轻快活泼BGM",
            "tags": "轻快,活泼,正能量",
            "type": "轻音乐"
        }
    ],
    "total": 0,
    "page": 0,
    "page_size": 0
}