feat: add the remaining things

* DisableMaintenance
* UnlockAllMusic
* UnlockGameEvents
* UnlockMemoryChapters

UnlockAllMusic/MU3.DataStudio/patch_MusicData.cs

@@ -0,0 +1,24 @@
+namespace MU3.DataStudio;
+
+class patch_MusicData: MusicData {
+    public new int CostToUnlock {
+        get {
+            return 0;
+        }
+        private set { /* nop */ }
+    }
+
+    public new bool PossessingFromTheBeginning {
+        get {
+            return true;
+        }
+        private set { /* nop */ }
+    }
+
+    public new bool IsLockedAtTheBeginning {
+        get {
+            return false;
+        }
+        private set { /* nop */ }
+    }
+}

UnlockAllMusic/MU3/patch_Scene_25_Login.cs

@@ -0,0 +1,20 @@
+using MU3.User;
+using MU3.Util;
+
+namespace MU3;
+
+class patch_Scene_25_Login: Scene_25_Login {
+    private enum State {
+        GetUserRatinglog = 24
+    }
+
+    private Mode<Scene_25_Login, State> mode_;
+
+    private void GetUserActivityMusic_Init() {
+        // nop
+    }
+    private void GetUserActivityMusic_Proc() {
+        Singleton<UserManager>.instance.updateUserActivityInLoginEnd();
+        mode_.set(State.GetUserRatinglog);
+    }
+}

UnlockAllMusic/UnlockAllMusic.csproj

@@ -0,0 +1,7 @@
+<Project>
+  <PropertyGroup>
+    <AssemblyName>Assembly-CSharp.UnlockAllMusic.mm</AssemblyName>
+    <Description>Unlock all music</Description>
+  </PropertyGroup>
+  <Import Project="..\Mu3Mods.csproj" />
+</Project>