refactor(ai): E001 AI 重写为纯决策层，符合设计并委托能力模块

依据小怪设计文档重构 E001 状态机 Idle_Disguise→Skill_Start→Skill_Loop→Skill_End→Move_Patrol：
追击移动/接触伤害全部委托 e001_chase(ContactChaseAbility)，AI 不再裸 MoveTo。
新增 ISensor.DetectsPlayer(视线OR近身,对齐设计)、IMover.UseChase/PatrolSpeed、
IEnemyActor.SetPhase(AI 声明阶段、EnemyBase 播动画)。

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

Assets/Tests/EditMode/AI/Fakes/FakeAiContext.cs

@@ -8,6 +8,7 @@ namespace BaseGames.Tests.EditMode.AI
     {
         public bool Sees; public float LostForValue; public Vector2 Last;
         public bool SeesPlayer() => Sees;
+        public bool DetectsPlayer() => Sees; // 测试里等同可见
         public bool InRange(float range) => Sees; // 简化：可见即在范围
         public bool LostFor(float seconds) => LostForValue >= seconds;
         public Vector2 LastKnown => Last;
@@ -21,6 +22,8 @@ namespace BaseGames.Tests.EditMode.AI
         public void Stop() => Calls.Add("Stop");
         public void WalkRandom() => Calls.Add("WalkRandom");
         public void LookAround() => Calls.Add("LookAround");
+        public void UseChaseSpeed() => Calls.Add("UseChaseSpeed");
+        public void UsePatrolSpeed() => Calls.Add("UsePatrolSpeed");
     }
 
     public sealed class FakeCombat : ICombatant