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/Data/Combat/Weapons/WPN_DiHun.asset

@@ -18,7 +18,7 @@ MonoBehaviour:
   weaponType: 1
   groundComboSteps:
   - clip:
-      _FadeDuration: 0.25
+      _FadeDuration: 0
       _Speed: 1
       _Events:
         _NormalizedTimes: []
@@ -30,13 +30,13 @@ MonoBehaviour:
     hitBoxEnter: 0
     hitBoxExit: 0.092
     comboInputOpen: 0
-    comboInputClose: 1
+    comboInputClose: 0.07
     cancelWindowOpen: 0
     recoveryTime: 0
-    comboTimeout: 0
+    comboTimeout: 0.2
     hitBoxId: ATK_Ground_1
   - clip:
-      _FadeDuration: 0.25
+      _FadeDuration: 0
       _Speed: 1
       _Events:
         _NormalizedTimes: []