Add dismissible Weekly Huddle pop-up overlay (Sept 8)

Self-contained /announce.js injects a branded, dismissible event overlay
(the flyer + all four time zones + Join Google Meet button). Included on the
main funnel and member pages. Auto-expires after the huddle and shows once
per browser until dismissed; edit the EV block to reuse for future events.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

public/start.html

@@ -16,4 +16,5 @@
 <div class="callout warning" style="margin-top:12px"><strong>Risk reminder:</strong> participation involves cryptocurrency and smart-contract risk. No income is guaranteed. Use only funds you can afford to lose.</div><div id="supportBox" class="notice" style="margin-top:12px"></div><div id="supportLinkWrap" class="hidden" style="margin-top:10px"><a id="supportLink" class="btn btn-secondary" target="_blank" rel="noopener noreferrer">Open Team Support ↗</a></div></section></div>
 <figure class="roadmap-figure"><a href="/roadmap.webp" target="_blank" rel="noopener"><img src="/roadmap.webp" alt="RM Circle Premium Team Build Roadmap — core strategy, step-by-step guide, premium levels, and duplication formula" width="1149" height="1369" loading="lazy"></a><figcaption>This roadmap is the plan every member follows — tap to view full size.</figcaption></figure></div></main>
 <footer class="wrap disclaimer">This is an independent RM Circle Team Build onboarding resource, not an owner/principal page. Always confirm transaction details in your wallet before signing. Never disclose your Secret Recovery Phrase.<div class="footer-links"><a href="/my">Already joined? Open your Member Dashboard →</a><a href="/contract">Contract Security</a><a href="/disclaimer">Disclaimers</a><a href="/how-pay-works">How You Get Paid</a><a href="/tools">Promo Tools</a><a href="/privacy">Privacy</a><a href="/refunds">Refunds</a></div></footer>
-<script src="/track.js"></script><script src="/start.js"></script><script src="/payouts.js" defer></script><script src="/chat.js" defer></script><script src="/translate.js" defer></script><script src="/tg-app.js" defer></script><script src="/nav-dash.js" defer></script></body></html>
+<script src="/track.js"></script><script src="/start.js"></script><script src="/payouts.js" defer></script><script src="/chat.js" defer></script><script src="/translate.js" defer></script><script src="/tg-app.js" defer></script><script src="/nav-dash.js" defer></script>  <script src="/announce.js"></script>
+</body></html>