feat: store message metadata

Catalogger.Backend/Bot/Responders/MessageDeleteResponder.cs

@@ -58,7 +58,7 @@ public class MessageDeleteResponder(
 
             return Result.Success;
         }
-        
+
         logChannel = webhookExecutor.GetLogChannel(guild, LogChannelType.MessageDelete, ev.ChannelID, msg.UserId);
         if (logChannel == null) return Result.Success;
 
@@ -96,6 +96,14 @@ public class MessageDeleteResponder(
             builder.AddField("Member ID", msg.Member, true);
         }
 
+        if (msg.Metadata != null)
+        {
+            var attachmentInfo = string.Join("\n",
+                msg.Metadata.Attachments.Select(a =>
+                    $"{a.Filename} ({a.ContentType}, {a.Size.Bytes().Humanize()})"));
+            if (!string.IsNullOrWhiteSpace(attachmentInfo)) builder.AddField("Attachments", attachmentInfo, false);
+        }
+
         await webhookExecutor.QueueLogAsync(logChannel.Value, builder.Build().GetOrThrow());
         return Result.Success;
     }