修了很多bug和增加功能，优化不少问题

Assets/scripts/gamePlay_gameplay/JudgeManager.cs

@@ -10,6 +10,9 @@ public class JudgeManager : MonoBehaviour
     public settlementController sc;
     public NoteSpawner ns;
 
+    [Header("Settlement Delay")]
+    [SerializeField] private float settlementEnterDelaySeconds = 1.5f;
+
     private bool _cachedIsDebugEnabled;
     private void UpdateDebugCache()
     {
@@ -84,7 +87,20 @@ public class JudgeManager : MonoBehaviour
             return;
         }
 
-        // Activate settlement UI so components run their lifecycle, then call update next frame
+        // Enter settlement after a real-time delay to leave a short idle window after chart end.
+        StartCoroutine(InvokeSettlementUpdateNextFrame());
+    }
+
+    private IEnumerator InvokeSettlementUpdateNextFrame()
+    {
+        // Keep settlement lead-in fixed at 1.5s for consistent pacing.
+        float delay = 1.5f;
+        if (delay > 0f)
+        {
+            yield return new WaitForSecondsRealtime(delay);
+        }
+
+        // Activate settlement UI so components run their lifecycle.
         try
         {
             settlement_go.SetActive(true);
@@ -94,19 +110,15 @@ public class JudgeManager : MonoBehaviour
             if (IsDebugEnabled) Debug.LogWarning($"[JudgeManager] Failed to activate settlement_go: {ex}");
         }
 
-        // Try to resolve settlementController reference if missing
+        // Try to resolve settlementController reference if missing.
         if (sc == null && settlement_go != null)
         {
             sc = settlement_go.GetComponent<settlementController>() ?? settlement_go.GetComponentInChildren<settlementController>(true);
         }
 
-        // Invoke the settlement update on next frame to ensure UI initialization finished
-        StartCoroutine(InvokeSettlementUpdateNextFrame());
-    }
+        // Wait one frame to allow Awake/Start/OnEnable.
+        yield return null;
 
-    private IEnumerator InvokeSettlementUpdateNextFrame()
-    {
-        yield return null; // wait one frame to allow Awake/Start/OnEnable
         if (sc != null)
         {
             try