Session file is corrupted - Invalid literal value

从 SessionFeature.Lifecycle.cs 第 215 行报告的 SessionFeature.LoadSession 调用开始，跟踪 SDK 的 ResumeSessionAsync 路径。检查第 355 行附近损坏的会话数据，尤其是 ephemeral 字段，并确定一个可复现的故障或针对无效会话文件的明确处理修复方案。

I'm using the .NET SDK, a few times now, after updating the NuGet version, some (not all) previous sessions become corrupt. This is the error i get when resuming a session -

System.IO.IOException: Communication error with Copilot CLI: Request session.resume failed with message: Session file is corrupted (line 355: ephemeral: Invalid literal value, expected true)
 ---> StreamJsonRpc.RemoteInvocationException: Request session.resume failed with message: Session file is corrupted (line 355: ephemeral: Invalid literal value, expected true)
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync[TResult](RequestId id, String targetName, IReadOnlyList`1 arguments, IReadOnlyList`1 positionalArgumentDeclaredTypes, IReadOnlyDictionary`2 namedArgumentDeclaredTypes, CancellationToken cancellationToken, Boolean isParameterObject)
   at GitHub.Copilot.SDK.CopilotClient.InvokeRpcAsync[T](JsonRpc rpc, String method, Object[] args, StringBuilder stderrBuffer, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at GitHub.Copilot.SDK.CopilotClient.InvokeRpcAsync[T](JsonRpc rpc, String method, Object[] args, StringBuilder stderrBuffer, CancellationToken cancellationToken)
   at GitHub.Copilot.SDK.CopilotClient.InvokeRpcAsync[T](JsonRpc rpc, String method, Object[] args, CancellationToken cancellationToken)
   at GitHub.Copilot.SDK.CopilotClient.ResumeSessionAsync(String sessionId, ResumeSessionConfig config, CancellationToken cancellationToken)
   at App.Features.Sessions.SessionFeature.LoadSession(String sessionId) in D:\a\App\App\src\App\Features\Sessions\SessionFeature.Lifecycle.cs:line 215