feat(integration): 添加 AppLovin SDK 集成管理功能

- 实现 AppLovinIntegrationManagerUtils 版本比较工具类
- 添加 AppLovinPackageManager 处理 UPM 和 Assets 包管理
- 实现 AppLovinPluginMigrationHelper 插件迁移辅助功能
- 添加 AppLovinUpmManifest 管理 UPM 清单文件操作
- 支持 mediation adapter 的版本检测和安装管理
- 实现重复适配器检测和删除功能

sdk-intergration/Assets/MaxSdk/Scripts/MaxCmpService.cs

@@ -25,7 +25,7 @@ public class MaxCmpService
 
     private MaxCmpService() { }
 
-    private static Action<MaxCmpError> OnCompletedAction;
+    private static Action<MaxCmpError> _onCompletedAction;
 
 #if UNITY_EDITOR
 #elif UNITY_ANDROID
@@ -50,7 +50,7 @@ public class MaxCmpService
     /// <param name="onCompletedAction">Called when the CMP flow finishes showing.</param>
     public void ShowCmpForExistingUser(Action<MaxCmpError> onCompletedAction)
     {
-        OnCompletedAction = onCompletedAction;
+        _onCompletedAction = onCompletedAction;
 
 #if UNITY_EDITOR
         var errorProps = new Dictionary<string, object>
@@ -88,10 +88,10 @@ public class MaxCmpService
 
     internal static void NotifyCompletedIfNeeded(Dictionary<string, object> errorProps)
     {
-        if (OnCompletedAction == null) return;
+        if (_onCompletedAction == null) return;
 
         var error = (errorProps == null) ? null : MaxCmpError.Create(errorProps);
-        OnCompletedAction(error);
+        _onCompletedAction(error);
     }
 }