Announcement card: a notice can explain itself

The cancellation card could only say two lines, an eyebrow and a date label,
because the card has no prose field and the API never passed one. A notice needs
to say what happened and what comes next, so it now carries a body.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

public/announce.js

@@ -71,6 +71,14 @@
         foot.appendChild(dateRow);
       }
 
+      // a notice (cancellation, change of plan) carries prose where an invitation carries times
+      if (EV.body) {
+        var bodyEl = document.createElement('p');
+        bodyEl.textContent = EV.body;
+        bodyEl.style.cssText = 'margin:10px 0 2px;text-align:center;color:#c8d6e2;font-size:14.5px;line-height:1.5;';
+        foot.appendChild(bodyEl);
+      }
+
       if (EV.timesArr.length) {
         var grid = document.createElement('div');
         grid.style.cssText = 'display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px;';

public/app.html

@@ -28,5 +28,5 @@
     <a class="btn btn-primary" href="/my">Open the dashboard</a>
   </div>
 </main>
-<script src="/app.js"></script>  <script src="/announce.js?v=20260922a"></script>
+<script src="/app.js"></script>  <script src="/announce.js?v=20260924a"></script>
 </body></html>

server.js

@@ -671,7 +671,7 @@ async function handleApi(req,res,pathname){
     return json(res,200,{
       enabled: c.announceEnabled===undefined ? true : !!c.announceEnabled,
       id: c.announceId||'', img: c.announceImg||'', meetUrl: c.announceMeetUrl||'',
-      eyebrow: c.announceEyebrow||'', dateLabel: c.announceDateLabel||'',
+      eyebrow: c.announceEyebrow||'', dateLabel: c.announceDateLabel||'', body: c.announceBody||'',
       times: c.announceTimes||'', expiresUTC: c.announceExpiresUTC||'',
       startUTC: c.announceStartUTC||'', durationMin: Number(c.announceDurationMin)||60,
       promo: { enabled: !!c.promoEnabled, id: c.promoId||'', img: c.promoImg||'', eyebrow: c.promoEyebrow||'', ctaText: c.promoCtaText||'', ctaUrl: c.promoCtaUrl||'/my', pages: c.promoPages||'my,app', expiresUTC: c.promoExpiresUTC||'' }