In landlock.cpp, add a class that subclasses ServerStatusSection and implements generateSection(). Register it using a ServerStatusSectionBuilder for both shard & router (similar to this line in mongod_main.cpp).

The serverStatus output should have a landlock section, and under that, there should be a boolean field enabled reflecting the value of the security.landlock.enabled config option, and a abiVersion numeric field showing the discovered Landlock ABI version.