应用: 抖音
任务: 打开抖音，搜索“健身操”，收藏第三个视频
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 健身操
step_id: 3
action: CLICK
step_id: 4
action: SWIPE