[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/PlayAnimationAction.cs

@@ -0,0 +1,63 @@
+using System;
+using Unity.Behavior;
+using UnityEngine;
+using Action = Unity.Behavior.Action;
+using Unity.Properties;
+
+[Serializable, GeneratePropertyBag]
+[NodeDescription(name: "PlayAnimation", story: "[애니메이션] 재생", category: "Action", id: "b558ee0df6e00cd2e6bb2273b4f59cd2")]
+public partial class PlayAnimationAction : Action
+{
+    [SerializeReference]
+    public BlackboardVariable<string> AnimationName = new BlackboardVariable<string>("");
+
+    [SerializeReference]
+    public BlackboardVariable<bool> WaitForCompletion = new BlackboardVariable<bool>(true);
+
+    private Animator animator;
+    private bool animationStarted;
+
+    protected override Status OnStart()
+    {
+        animator = GameObject.GetComponentInChildren<Animator>();
+        
+        if (animator == null || string.IsNullOrEmpty(AnimationName.Value))
+        {
+            return Status.Failure;
+        }
+
+        animator.Play(AnimationName.Value);
+        animationStarted = true;
+
+        if (!WaitForCompletion.Value)
+        {
+            return Status.Success;
+        }
+
+        return Status.Running;
+    }
+
+    protected override Status OnUpdate()
+    {
+        if (!WaitForCompletion.Value)
+        {
+            return Status.Success;
+        }
+
+        if (animator == null)
+        {
+            return Status.Failure;
+        }
+
+        var stateInfo = animator.GetCurrentAnimatorStateInfo(0);
+        
+        // 애니메이션이 완료되었는지 확인
+        if (stateInfo.IsName(AnimationName.Value) && stateInfo.normalizedTime >= 1f)
+        {
+            return Status.Success;
+        }
+
+        return Status.Running;
+    }
+}
+