📸 chore: Creature Recruitment | Add snapshotting to Dwelling aggregate with 5-event threshold

The Dwelling aggregate is now configured to use the existing dwellingSnapshotTrigger bean
to create snapshots every 5 events. It's just to show how the snapshotting can be configured.

Author: MateuszNaKodach

src/main/java/com/dddheroes/heroesofddd/creaturerecruitment/CreatureRecruitmentConfiguration.java

@@ -3,6 +3,9 @@
 import com.dddheroes.heroesofddd.creaturerecruitment.write.recruitcreature.RecruitCreature;
 import com.dddheroes.heroesofddd.resourcespool.application.CommandCostResolver;
 import com.dddheroes.heroesofddd.shared.domain.valueobjects.Resources;
+import org.axonframework.eventsourcing.EventCountSnapshotTriggerDefinition;
+import org.axonframework.eventsourcing.SnapshotTriggerDefinition;
+import org.axonframework.eventsourcing.Snapshotter;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -23,4 +26,9 @@ public Class<? extends RecruitCreature> supportedCommandType() {
             }
         };
     }
+
+    @Bean
+    SnapshotTriggerDefinition dwellingSnapshotTrigger(Snapshotter snapshotter) {
+        return new EventCountSnapshotTriggerDefinition(snapshotter, 5);
+    }
 }

src/main/java/com/dddheroes/heroesofddd/creaturerecruitment/write/Dwelling.java

@@ -22,7 +22,7 @@
 
 import static org.axonframework.modelling.command.AggregateLifecycle.*;
 
-@Aggregate
+@Aggregate(snapshotTriggerDefinition = "dwellingSnapshotTrigger")
 public class Dwelling {
 
     @AggregateIdentifier