added easter egg

src/index.ts

@@ -79,6 +79,13 @@ async function main() {
       });
       console.log('follow message');
     }
+    if (notification.type === 'mention' && notification.status?.visibility === 'direct') {
+      await mastodon.v1.statuses.create({
+        inReplyToId: notification.status.id,
+        visibility: 'direct',
+        status: 'meow'
+      });
+    }
   });
   matrix.on('room.message', async (roomId, event) => {
     if (