Add configurable read-only mode for commands (#4031)

bukkit/src/main/resources/config.yml

@@ -719,3 +719,33 @@ register-command-list-data: true
 # If LuckPerms should attempt to resolve Vanilla command target selectors for LP commands.
 # See here for more info: https://minecraft.wiki/w/Target_selectors
 resolve-command-selectors: false
+
+# If the plugin should run in "read-only" mode for commands.
+#
+# In this mode, players or the console will only be able to execute commands that read or view
+# data, and will not be able to execute any LP commands that modify data.
+#
+# If enabling read-only mode for just players, be aware that some other plugins may allow players
+# to execute commands as the console, allowing them to run LP commands indirectly.
+#
+# Note: This does not affect interactions with LuckPerms via the API.
+commands-read-only-mode:
+  players: false
+  console: false
+
+# If LuckPerms commands should be disabled. When true, this will prevent all LP commands from being
+# executed. In a sense this is a more extreme version of read-only mode (see above).
+#
+# LuckPerms will still act as the permission manager, but server administrators will be unable to
+# make changes via commands.
+#
+# If disabling commands just for players, be aware that some other plugins may allow players to
+# execute commands as the console, allowing them to run commands indirectly.
+#
+# If commands are disabled for both players and the console, LuckPerms will not attempt to register
+# a command with the server at all & in a sense will be invisible to both players and admins.
+#
+# Note: This does not affect interactions with LuckPerms via the API.
+disable-luckperms-commands:
+  players: false
+  console: false