feat: add config option to run silently (no logs, no commands, but doing everything else needed for logging)

Catalogger.Backend/Services/WebhookExecutorService.cs

@@ -97,6 +97,15 @@ public class WebhookExecutorService(
         if (channelId == 0)
             return;
 
+        if (config.Discord.TestMode)
+        {
+            _logger.Information(
+                "Should have logged to {ChannelId}, but test mode is enabled, ignoring",
+                channelId
+            );
+            return;
+        }
+
         var attachments = files
             .Select<FileData, OneOf.OneOf<FileData, IPartialAttachment>>(f => f)
             .ToList();