docs: extension objects

extension-objects/src/main/java/concreteextensions/Commander.java

@@ -33,12 +33,8 @@ import units.CommanderUnit;
 /**
  * Class defining Commander.
  */
-@Getter
-@RequiredArgsConstructor
 @Slf4j
-public class Commander implements CommanderExtension {
-
-  private final CommanderUnit unit;
+public record Commander(CommanderUnit unit) implements CommanderExtension {
 
   @Override
   public void commanderReady() {

extension-objects/src/main/java/concreteextensions/Sergeant.java

@@ -33,12 +33,8 @@ import units.SergeantUnit;
 /**
  * Class defining Sergeant.
  */
-@Getter
-@RequiredArgsConstructor
 @Slf4j
-public class Sergeant implements SergeantExtension {
-
-  private final SergeantUnit unit;
+public record Sergeant(SergeantUnit unit) implements SergeantExtension {
 
   @Override
   public void sergeantReady() {

extension-objects/src/main/java/concreteextensions/Soldier.java

@@ -33,12 +33,8 @@ import units.SoldierUnit;
 /**
  * Class defining Soldier.
  */
-@Getter
-@RequiredArgsConstructor
 @Slf4j
-public class Soldier implements SoldierExtension {
-
-  private final SoldierUnit unit;
+public record Soldier(SoldierUnit unit) implements SoldierExtension {
 
   @Override
   public void soldierReady() {