feat(enemy): EnemyBase 经接口发现并暴露 Locomotion(IEnemyLocomotion)

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

Assets/_Game/Scripts/Enemies/EnemyBase.cs

@@ -1,5 +1,6 @@
 using UnityEngine;
 using Animancer;
+using BaseGames.AI;
 using BaseGames.Combat;
 using BaseGames.Core.Events;
 using BaseGames.Core.Pool;
@@ -58,6 +59,9 @@ namespace BaseGames.Enemies
         // 通过接口引用，避免对 Navigation 程序集的直接依赖。
         // 由子类 / Inspector 注入，或者运行时 GetComponent<IPathAgent>() 获取。
         protected IPathAgent  _nav;
+
+        // 移动执行器（IEnemyLocomotion；由 EnemyLocomotion 在 Navigation 程序集实现，运行时发现）
+        protected IEnemyLocomotion _locomotion;
         // 霸体来源（由 EnemyPoiseComponent.Awake() 自动注入，TakeDamage 时读取）
         private IPoiseSource _poiseSource;
         protected readonly CompositeDisposable _subs = new();
@@ -214,6 +218,7 @@ namespace BaseGames.Enemies
 
         // BD 任务访问接口（公共只读属性）────────────────────────────────
         public IPathAgent              Nav             => _nav;
+        public IEnemyLocomotion        Locomotion      => _locomotion;
         public EnemyMovement           Movement        => _movement;
         public EnemyStats              Stats           => _stats;
         /// <summary>敌人配置 SO，供 BD Task / 状态对象读取配置数据（如 knockUpDuration）。</summary>
@@ -566,6 +571,7 @@ namespace BaseGames.Enemies
             _stateObjs[EnemyStateType.Dead]       = new EnemyDeadState();
 
             _nav          = GetComponent<IPathAgent>() ?? new NullPathAgent();
+            _locomotion   = GetComponentInChildren<IEnemyLocomotion>(true);
             if (_movement == null) _movement = GetComponent<EnemyMovement>();
             _poiseSource  = GetComponent<IPoiseSource>();
             _sensorHub     = GetComponentInChildren<Perception.IPerceptionSystem>();