feat(feedback): 命中/受击反馈支持固定位置与击中位置两种生成模式

DamageInfo 新增运行时字段 HitPoint：HitBox 结算时写入精确接触点
(ClosestPoint)，HurtBox.ReceiveDamage 以解析后命中点兜底盖戳，
陷阱/环境等直调路径同样可用。IFeedbackPlayer.PlayHit/PlayTakeHit
增加命中点参数，全链路（武器实例→PlayerCombat→HurtState→
EnemyFeedback）透传。各 Feedback 组件命中/受击槽位新增
FeedbackPositionMode（Fixed=反馈链编排的固定位置 /
HitPoint=传入命中点，启用位置选项的模块在该点生成），由编排
反馈链的开发者在 Inspector 按表现选择；武器命中默认 HitPoint
（火花贴点），角色级默认 Fixed（震屏/振动与位置无关）。

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Assets/_Game/Scripts/Enemies/EnemyFeedback.cs

@@ -15,13 +15,17 @@ namespace BaseGames.Enemies
         [SerializeField] private MMF_Player _onHitLight;
         [SerializeField] private MMF_Player _onHitMedium;
         [SerializeField] private MMF_Player _onHitHeavy;
+        [Tooltip("命中反馈生成位置：Fixed = 反馈链编排的固定位置；HitPoint = 在命中点生成")]
+        [SerializeField] private FeedbackPositionMode _hitPositionMode = FeedbackPositionMode.Fixed;
 
         [Header("受伤 / 死亡反馈")]
         [SerializeField] private MMF_Player _onTakeHit;
+        [Tooltip("受击反馈生成位置：Fixed = 反馈链编排的固定位置；HitPoint = 在受击点生成（血粒子等贴点表现）")]
+        [SerializeField] private FeedbackPositionMode _takeHitPositionMode = FeedbackPositionMode.Fixed;
         [SerializeField] private MMF_Player _onDeath;
 
         // ── IFeedbackPlayer ──────────────────────────────────────────────────────
-        public void PlayHit(HitWeight weight)
+        public void PlayHit(HitWeight weight, Vector3 hitPoint)
         {
             var player = weight switch
             {
@@ -30,10 +34,11 @@ namespace BaseGames.Enemies
                 HitWeight.Heavy  => _onHitHeavy,
                 _                => _onHitLight,
             };
-            player?.PlayFeedbacks();
+            FeedbackPlayback.Play(player, _hitPositionMode, hitPoint);
         }
 
-        public void PlayTakeHit()      => _onTakeHit?.PlayFeedbacks();
+        public void PlayTakeHit(Vector3 hitPoint)
+            => FeedbackPlayback.Play(_onTakeHit, _takeHitPositionMode, hitPoint);
         public void PlayDeath()        => _onDeath?.PlayFeedbacks();
 
         // 以下方法对敌人无意义，提供空实现保持接口完整
@@ -51,7 +56,7 @@ namespace BaseGames.Enemies
         /// <summary>受到伤害时调用（由 EnemyBase 触发）。</summary>
         public void OnHit(DamageInfo info)
         {
-            PlayTakeHit();
+            PlayTakeHit(info.HitPoint);
         }
 
         /// <summary>死亡时调用（由 EnemyBase 触发）。</summary>