修复问题，优化bug和游戏，resource资源拆迁

Assets/scripts/SongsSelect/UI_SongsSelect_RuntimeFeatures.cs

@@ -5,6 +5,7 @@ using UnityEngine;
 using UnityEngine.Events;
 using UnityEngine.SceneManagement;
 using UnityEngine.UI;
+using Bansonic;
 
 public class UI_SongsSelect_RuntimeFeatures : MonoBehaviour
 {
@@ -331,6 +332,7 @@ public class UI_SongsSelect_RuntimeFeatures : MonoBehaviour
         if (chart == null)
         {
             Debug.LogError($"[Songs_Select] Enter gameplay cancelled: chart missing for '{song.songName}' difficulty {difficulty}.");
+            gNotice.error.display("本歌曲本难度未找到");
             return;
         }