应用: 快手
任务: 启动快手，查找“张三”并添加关注
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 张三
step_id: 3
action: CLICK
step_id: 4
action: STOP