Improve exam flow and WebGL build

Assets/Scripts/Interaction/ShoseClickHandler.cs

@@ -86,6 +86,7 @@ public class ShoseClickHandler : MonoBehaviour
         if (Time.time - _lastClickTime < 0.3f) return;
         _lastClickTime = Time.time;
         if (_clicked) return;
+        InteractionClickGuard.MarkHandled();
         _clicked = true;
         Debug.Log("[ShoseClick] ★ 被点击 ★");
         ActionHistory.Push(ActionHistory.ActionType.Shose, this);
@@ -139,8 +140,26 @@ public class ShoseClickHandler : MonoBehaviour
         if (uiMgr != null)
         {
             uiMgr.ShowVideo("bandage_demo.mp4");
+            uiMgr.ShowTip(GetNextTipText());
         }
     }
+
+    private string GetNextTipText()
+    {
+        bool isExam = GameManager.Instance != null && GameManager.Instance.CurrentMode == ExperimentMode.Exam;
+        bool isSplint = GameManager.Instance != null && GameManager.Instance.CurrentFixationMethod == FixationMethod.SplintFixation;
+
+        if (isExam)
+        {
+            return isSplint
+                ? "请阅读考核弹窗并选择固定带宽度，随后按提示预置四条固定带。"
+                : "请阅读考核弹窗并选择带子宽度，随后按提示由远端到近端摆放绑带。";
+        }
+
+        return isSplint
+            ? "下一步：按由脚踝到大腿的顺序，依次点击 4 个蓝色绑带点预置固定带。"
+            : "下一步：按由脚踝到大腿的顺序，依次点击 4 个蓝色绑带点摆放绑带。";
+    }
     
     public void ResetState()
     {