应用: 小红书
任务: 打开小红书，找到“宇树科技“的账号，给他发一条私信，说“你好"
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: TYPE
type_text: 你好