Get Douyin item play count

Returns Douyin play count (watch_cnt) and full details of a single video (item); play count is surfaced at the top level for convenience. Send item_id (Video (item) ID); optional need_cover_url, platform_source. Returns exist: Whether the video exists (false if deleted / invalid ID). Note: watch_cnt is the total play count INCLUDING paid promotion (ad boost), returned with video details; for organic (non-promoted) play count, use Douyin App V3 /api/v1/douyin/app/v3/fetch_video_statistics.