squash a bunch of commits

Shogi.UI/Pages/Home/Api/CookieMessageHandler.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.Components.WebAssembly.Http;
+
+namespace Shogi.UI.Pages.Home.Api
+{
+	public class CookieCredentialsMessageHandler : DelegatingHandler
+	{
+
+		public CookieCredentialsMessageHandler()
+		{
+		}
+
+		protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+		{
+			request.SetBrowserRequestCredentials(BrowserRequestCredentials.Include);
+			return base.SendAsync(request, cancellationToken);
+		}
+	}
+}