Fix forbidden response for websockets

GuildWarsPartySearch/Endpoints/PostPartySearch.cs

@@ -49,10 +49,12 @@ public override async Task SocketAccepted(CancellationToken cancellationToken)
 
     public override async Task SocketClosed()
     {
+        var scopedLogger = this.logger.CreateScopedLogger(nameof(this.SocketClosed), string.Empty);
         if (this.Context?.Items.TryGetValue(UserAgentRequired.UserAgentKey, out var userAgentValue) is not true ||
             userAgentValue is not string userAgent)
         {
-            throw new InvalidOperationException("Unable to extract user agent on client disconnect");
+            scopedLogger.LogDebug("No user agent found. A connection has been rejected");
+            return;
         }
 
         if (!await this.botStatusService.RemoveBot(userAgent, CancellationToken.None))

GuildWarsPartySearch/Extensions/WebApplicationExtensions.cs

@@ -108,6 +108,7 @@ private static async Task BeginProcessingPipeline(ActionExecutingContext actionE
                 }
 
                 await filter.OnActionExecutionAsync(actionExecutingContext, next);
+                await (actionExecutingContext.Result?.ExecuteResultAsync(actionExecutingContext) ?? Task.CompletedTask);
                 return actionExecutedContext;
             };
         }