Add OpenAPI contract and generated frontend client

Endpoints/ResultsEndpoints.cs

@@ -9,6 +9,7 @@ public static class ResultsEndpoints
     public static void MapResultsEndpoints(this IEndpointRouteBuilder app)
     {
         var group = app.MapGroup("/api/results")
+            .WithTags("Results")
             .RequireAuthorization()
             .AddEndpointFilter(new PhaseRequirementFilter(Phase.Results));
 
@@ -20,7 +21,7 @@ public static class ResultsEndpoints
 
             var result = await service.GetResultsAsync(player.Id);
             return result.ToHttpResult(Results.Ok);
-        });
+        }).WithName("GetResults");
     }
 }