YAMAN deploy — Newsletter update

This package is ready for GitHub Pages / Pages CMS.

Included

YAMAN newsletter 3:4 poster in assets/uploads/newsletter/
Newsletter poster card on Events page
Dedicated /newsletter.html with embedded Brevo signup
Brevo public form action stored in _data/site.yml
Newsletter poster/headline/CZ+EN text/Brevo action editable in Pages CMS → Site settings
All newsletter CTA buttons stay on yamansound.eu
Custom domain remains yamansound.eu

Deploy

Replace the contents of the current GitHub Pages repository with the contents of this folder (keep the repository itself). Commit/push to the publishing branch. GitHub Pages will rebuild automatically.

After deploy, test /newsletter.html with an email address and confirm the new contact appears in Brevo.