存档重构，游戏内容解锁机制；教程完善（未完成）

Assets/Scenes/MenuScene.unity

@@ -16859,6 +16859,8 @@ MonoBehaviour:
     charterName: 
     color: {r: 0, g: 0, b: 0, a: 0}
     isAvailable: 0
+    ForceFullScreenJudge: 0
+    chartRevision: 1
   songLength: 0
   bpm: 0
   chapterSwitch:
@@ -20474,7 +20476,7 @@ MonoBehaviour:
   backgroundFrames: {fileID: 2007806589}
   framePositionOffset: -1
   songListController: {fileID: 886518565}
-  playSongUI: {fileID: 0}
+  playSongUI: {fileID: 2067971169}
   songInfoUI: {fileID: 1283588608}
   difficultySelectionContainer: {fileID: 1665548623}
   selectedSong:
@@ -20501,6 +20503,8 @@ MonoBehaviour:
     charterName: 
     color: {r: 0, g: 0, b: 0, a: 0}
     isAvailable: 0
+    ForceFullScreenJudge: 0
+    chartRevision: 1
 --- !u!4 &1506872042
 Transform:
   m_ObjectHideFlags: 0