Can you run some tests with this package?
I don't expect the Aqara U200 lock/unlock commands to work, but it may help find the problem.
If your lock is successfully discovered, please click on the created child device 'Refresh All' button and post a screenshot of the Current States. I expect U200 to have more supportedOperatingModes than my Nuki Lock 4.0.... The most important is the 'actuatorEnabled' attribute :
