Mentions lost in reader mode

Reader mode (iOS Safari) hides username mentions:

<img width="1387" height="703" alt="Image" src="https://github.com/user-attachments/assets/6782faea-7161-40f9-93ee-dcab2ad82a2f" />

<img width="1668" height="731" alt="Image" src="https://github.com/user-attachments/assets/7b1a2f9c-d186-4c96-afbb-217ab9aae5e0" />