Add a command log for commands like /kill in realms hub

I think realms hub is a very cool new addition to bedrock realms, but something that would be very helpful (especially for creative realms) is an ability to view a log for powerful commands like /kill (/kill @e specifically), /gamerule, and /playanimation. Currently, especially in very large realms, whenever /kill @e is accidentally or purposefully executed, there is no info on who did it or when they did it, requiring the owner to cycle through backups. Unlike other griefing scenarios, you cannot simply restore a structure, as /kill @e and /gamerule are serverwide.