[AI] Behavior Actions 시스템 추가

Ultraworked with [Sisyphus](https://github.com/code-yeonggu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Assets/Scripts/AI/BehaviorActions/Actions/SetAnimatorTriggerAction.cs

@@ -0,0 +1,33 @@
+using System;
+using Unity.Behavior;
+using UnityEngine;
+using UnityEngine.EventSystems;
+using Action = Unity.Behavior.Action;
+using Unity.Properties;
+
+[Serializable, GeneratePropertyBag]
+[NodeDescription(name: "SetAnimatorTrigger", story: "애니메이션 [트리거] 설정", category: "Action", id: "bfef104cbd43df3d01f24570a4caa8ed")]
+public partial class SetAnimatorTriggerAction : Action
+{
+    [SerializeReference]
+    public BlackboardVariable<string> TriggerName = new BlackboardVariable<string>("");
+
+    protected override Status OnStart()
+    {
+        if (string.IsNullOrEmpty(TriggerName.Value))
+        {
+            return Status.Failure;
+        }
+
+        Animator animator = GameObject.GetComponentInChildren<Animator>();
+        
+        if (animator == null)
+        {
+            return Status.Failure;
+        }
+
+        animator.SetTrigger(TriggerName.Value);
+        return Status.Success;
+    }
+}
+