changes.txt #10: informative disclaimers (footer, guide, legal)

- Footer disclaimer on every page (informative-only, verify with official sources)
- "Good to know" callout across all Student Welcome Guide pages, pointing to
  the "Was this page helpful?" box for reporting errors
- "Website content & liability" disclaimer card on the Official information page
All three languages (EN/MK/SI).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

en/blog/index.html

@@ -400,6 +400,7 @@
                 <a href="#" class="js-manage-cookies" onclick="if(window.msosOpenConsent){msosOpenConsent();}return false;">Manage cookies</a>
             </div>
         </div>
+        <div class="footer-disclaimer"><p>The information on this website is shared by students for general guidance only. It may be incomplete or out of date and is not legal or professional advice — always verify important details with the relevant official institutions. MSOS accepts no liability for errors, omissions, or decisions made based on this content.</p></div>
         <div class="footer-credit">
             <span>Built with the help of Mark and Domen from <a href="https://www.spletnimojster.si" target="_blank" rel="noopener">Spletni Mojster</a> and Kristijan from MSOS. Big thanks to them!</span>
         </div>