feat(RobotState): 新增 Dt_RobotState 数据库实体，使用 RowVersion 乐观锁

wanshenmean

2 天以前 d6325e442b0443ae33650b58ff8d7181dacb463c

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{"t":0,"agent":"a48e41d","agent_type":"Explore","event":"agent_start","parent_mode":"none"}
{"t":0,"agent":"a48e41d","agent_type":"Explore","event":"agent_stop","success":true,"duration_ms":51400}