修复内容：

PlayerMovement：新增 _facingLocked 字段 + LockFacing(bool) 方法；UpdateFacing() 锁定时直接返回
WallSlideState：OnStateEnter 调用 LockFacing(true) + FlipFacing(_wallDir)；OnStateExit 调用 LockFacing(false) 解锁
WallJumpState：OnStateEnter 保险性再调一次 LockFacing(false)；WallJumpAway/Toward 同步写入 _inputVelocityX，确保解锁后 UpdateFacing 朝向正确（背墙跳 = 离墙方向，对墙跳 = 朝墙方向）

Assets/_Game/Scripts/World/PhantomInteractable.cs

@@ -4,6 +4,7 @@ namespace BaseGames.World
 {
     /// <summary>
     /// 幻影可交互机关。继承 DirectionalInteractable，额外响应 PhantomBody 层（太虚斩形态）。
+    /// 通过覆写 IsValidTriggerBody 扩展触发主体，_triggerCondition 条件检查由父类统一处理。
     /// </summary>
     public class PhantomInteractable : DirectionalInteractable
     {
@@ -11,13 +12,7 @@ namespace BaseGames.World
 
         private void Awake() => _phantomBodyLayer = LayerMask.NameToLayer("PhantomBody");
 
-        private void OnTriggerEnter2D(Collider2D other)
-        {
-            bool isPlayer  = other.CompareTag("Player");
-            bool isPhantom = other.gameObject.layer == _phantomBodyLayer;
-
-            if (!isPlayer && !isPhantom) return;
-            TryActivate();
-        }
+        protected override bool IsValidTriggerBody(Collider2D col)
+            => col.CompareTag("Player") || col.gameObject.layer == _phantomBodyLayer;
     }
 }