chore(scene): TestRoomA 敌人感知槽改 Box 型并配尺寸，微调物体位置

aggro/los 两个感知槽由点/圆改为 Box(type 7)，offset y=0.31，
分别配 8.1x1.38 / 11.65x1.38；顺带清掉随 NavDriving 死代码移除的序列化残留字段。

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Assets/_Game/Scenes/Testings/TestRoomA.unity

@@ -4085,7 +4085,7 @@ Transform:
   m_GameObject: {fileID: 219555572}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -4.87, y: 0.31, z: 0}
+  m_LocalPosition: {x: -3.92, y: -0.19, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
@@ -5438,8 +5438,8 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   _slots:
   - slotName: aggro
-    type: 0
-    offset: {x: 0, y: 0}
+    type: 7
+    offset: {x: 0, y: 0.31}
     gizmoColor: {r: 1, g: 0.6, b: 0.1, a: 1}
     isDisabled: 0
     tickInterval: 0
@@ -5449,7 +5449,7 @@ MonoBehaviour:
       m_Bits: 512
     fanAngle: 0
     fanRayCount: 0
-    boxSize: {x: 0, y: 0}
+    boxSize: {x: 8.1, y: 1.38}
     boxOffset: {x: 0, y: 0}
     losBlockMask:
       serializedVersion: 2
@@ -5464,8 +5464,8 @@ MonoBehaviour:
       serializedVersion: 2
       m_Bits: 0
   - slotName: los
-    type: 1
-    offset: {x: 0, y: 0}
+    type: 7
+    offset: {x: 0, y: 0.31}
     gizmoColor: {r: 0, g: 0.8, b: 1, a: 1}
     isDisabled: 0
     tickInterval: 0
@@ -5475,7 +5475,7 @@ MonoBehaviour:
       m_Bits: 512
     fanAngle: 0
     fanRayCount: 0
-    boxSize: {x: 0, y: 0}
+    boxSize: {x: 11.65, y: 1.38}
     boxOffset: {x: 0, y: 0}
     losBlockMask:
       serializedVersion: 2
@@ -5528,7 +5528,6 @@ MonoBehaviour:
   _dbg_IsWallAhead: 0
   _dbg_IsLedgeAhead: 0
   _dbg_IsTurning: 0
-  _dbg_NavDriving: 0
   _dbg_Input_MoveDir: 0
   _dbg_Input_MoveSpeed: 0
   _dbg_Input_WantStop: 0
@@ -5657,7 +5656,7 @@ Transform:
   m_GameObject: {fileID: 310446315}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -18, y: 2.01, z: 0}
+  m_LocalPosition: {x: -22.19, y: 2.21, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children:
@@ -211128,7 +211127,7 @@ Transform:
   m_GameObject: {fileID: 1731093353}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 4.48, y: 0.01, z: 0}
+  m_LocalPosition: {x: 3.63, y: -0.19, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
@@ -215493,11 +215492,11 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 8020630769765462792, guid: dadbcefa02b3d0f4ba27af93ff088166, type: 3}
       propertyPath: m_LocalPosition.x
-      value: -18.64
+      value: -10.91
       objectReference: {fileID: 0}
     - target: {fileID: 8020630769765462792, guid: dadbcefa02b3d0f4ba27af93ff088166, type: 3}
       propertyPath: m_LocalPosition.y
-      value: 8.68
+      value: 7.63
       objectReference: {fileID: 0}
     - target: {fileID: 8020630769765462792, guid: dadbcefa02b3d0f4ba27af93ff088166, type: 3}
       propertyPath: m_LocalPosition.z