update polygon package parsing & testing

src/LiquidCode.Tester.Worker/Program.cs

@@ -10,6 +10,9 @@ builder.Services.AddOpenApi();
 builder.Services.AddHttpClient();
 
 // Register application services
+builder.Services.AddSingleton<PolygonProblemXmlParser>();
+builder.Services.AddSingleton<AnswerGenerationService>();
+builder.Services.AddSingleton<CheckerService>();
 builder.Services.AddSingleton<IPackageParserService, PackageParserService>();
 builder.Services.AddSingleton<IOutputCheckerService, OutputCheckerService>();
 builder.Services.AddSingleton<ICallbackService, CallbackService>();