refactor(enemy): 删除 AiPhase 影子层，动画统一由 locomotion/反应态/能力驱动

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Assets/_Game/Scripts/Enemies/Abilities/AnimatedCeilingDropAbility.cs

@@ -1,5 +1,6 @@
 using System.Collections;
 using Animancer;
+using BaseGames.AI;
 using UnityEngine;
 
 namespace BaseGames.Enemies.Abilities
@@ -67,8 +68,8 @@ namespace BaseGames.Enemies.Abilities
 
             yield return EnemyAbilityWaits.Get(_recoveryTime);
 
-            // SetAiPhase(Patrol) 自动播放 AnimConfig.Walk（地面移动动画）
-            _enemy.SetAiPhase(AiPhase.Patrol);
+            // PlayLocomotionClip(Patrol) 播放 AnimConfig.Walk（地面移动动画）
+            _enemy.PlayLocomotionClip(LocomotionMode.Patrol);
         }
 
         private bool IsGrounded()