feat: chanraotuibu交互+摄像机直切+顺序调整+高度修正

- 新增ChanraoTuibuHandler: 蓝色矩形闪烁描边, 点击显示模型+激活ping.004
- AudioManager.SwitchToCamera3: 移除淡入淡出改为直接切换
- TouchPositionHandler: point1→激活chanraotuibu(非ping.004)
- PingClickHandler高度offset改为0.05f

Assets/Scripts/Interaction/TouchPositionHandler.cs

@@ -68,22 +68,21 @@ public class TouchPositionHandler : MonoBehaviour
         if (transform.GetSiblingIndex() == 0)
             {
             var amCam = FindObjectOfType<AudioManager>();
-            if (amCam != null) amCam.SwitchToCamera3Smooth();
+            if (amCam != null) amCam.SwitchToCamera3();
         }
 
         int stepIndex = transform.GetSiblingIndex() + 1;
         var sm = FindObjectOfType<StepManager>();
         if (sm != null) sm.RecordWomanStep(stepIndex);
 
-        // point1 点击后激活第一个 ping
+        // point1 点击后先激活 chanraotuibu
         if (stepIndex == 1)
         {
             var mi = GameObject.Find("manInjury");
             if (mi != null)
             {
-                var ping4 = mi.transform.Find("ping.004");
-                if (ping4 != null) { ping4.gameObject.SetActive(true); Debug.Log("[TouchPosition] ping.004 已激活"); }
-                FindObjectOfType<StepManager>()?.InitPingSteps();
+                var ct = mi.transform.Find("chanraotuibu");
+                if (ct != null) { ct.gameObject.SetActive(true); Debug.Log("[TouchPosition] chanraotuibu 已激活"); }
             }
         }