feat: woman移动交互 + medicalBox显示 + ReturnToHome场景重置

- TouchPositionHandler: 点击touchArray球体→woman移动到womanPointArray对应位置
- medicalBox: 初始隐藏，实验开始后显示
- ReturnToHome: 重置场景(恢复man/man2, 隐藏woman/manInjury/medicalBox, 切回主摄像机, 重置Animator)
- ActivateExperimentObjects(): 实验启动时激活实验物件

Assets/Scripts/Interaction/TouchPositionHandler.cs

@@ -0,0 +1,25 @@
+using UnityEngine;
+
+/// <summary>
+/// 挂在 touchArray 的每个子球体上，点击时把 woman 移动到 womanPointArray 对应位置。
+/// 字段用 public 方便代码直接赋值。
+/// </summary>
+public class TouchPositionHandler : MonoBehaviour
+{
+    public Transform targetPosition;
+    public GameObject womanObject;
+
+    private void OnMouseDown()
+    {
+        if (womanObject != null && targetPosition != null)
+        {
+            womanObject.transform.position = targetPosition.position;
+            womanObject.transform.rotation = targetPosition.rotation;
+            Debug.Log($"[TouchPosition] woman 移动到 {targetPosition.name} ({targetPosition.position})");
+        }
+        else
+        {
+            Debug.LogWarning($"[TouchPosition] {name}: womanObject 或 targetPosition 为空");
+        }
+    }
+}