Get Douyin topic or hot spot related videos

Returns related videos for a topic/hot spot/prop/music item in Douyin creator material center. Send query_id (Query ID); optional limit, offset, billboard_type. Returns related videos list data for the given query_id. Retrieve query_id from upstream billboard endpoints first, then call this API to fetch related videos. query_id: Query ID (topic_id / hot_id obtained from billboard endpoints).