Lark/Feishu IM bot channel for DeepSeek Harness

Key features

• Lasting Sessioncan be restored after restart
• Take the DeepSeek Harness you're using and put it in a flying book.
• Do not hold the terminalslaunch a mission from the flyer book to keep track of progress and results.
• The range of applications available to fly books determines who can find a robot.
• Follow-up message continues in its current context. /new can recreate one in situ