Task: Fix Access Token Retrieval in ASP.NET Core 2.0+

Task: Fix Access Token Retrieval in ASP.NET Core 2.0+: a task in Terminal-Lego-15k (Harbor dataset). When migrating from .NET Core 1.1 to .NET Core 2.0+, the HttpContext.Authentication API became obsolete. You need to update code that retrieves access tokens from the HTTP context to use the new…