A fold says what it holds, counted, not "tap to open" (#181)

ddiff --git a/server/render/short.js b/server/render/short.js
iindex 6003b01..c49f68c 100644
---- a/server/render/short.js
++++ b/server/render/short.js
@@@ -59,13 +59,27 @@ function pickRules(key, ids) {
      return ids.map((id) => pickRule(key, id)).join('');
  }
  
++/**
++ * What a fold holds, counted, for its title row (the owner, 2026-10-31: a fold that shortens a page shows its count):
++ * "6 questions", "12 items", "latest 5" for the shipped list, or nothing when there is nothing to count. Replaces the
++ * old "tap to open".
++ */
++function foldMeta(body, cls = '') {
++    const s = typeof body === 'string' ? body : String((body && (body.s || body.html || body.value)) || body || '');
++    const n = (re) => (s.match(re) || []).length;
++    const shipped = /data-ov-shipped="list"[^>]*?data-limit="(\d+)"|data-limit="(\d+)"[^>]*?data-ov-shipped="list"/.exec(s);
++    const q = n(/<details[\s>]/g), li = n(/<li[\s>]/g), a = n(/<a\s/g);
++    const text = shipped ? `latest ${shipped[1] || shipped[2]}` : q > 1 ? `${q} questions` : li > 1 ? `${li} items` : a > 1 ? `${a} links` : '';
++    return text ? `<span${cls ? ` class="${cls}"` : ''}>${text}</span>` : '';
++}
++
  /**
   * A fold. The head is the heading the block had; the html is what it holds.
   *
   *   foldBlock({ id, head, html })
   */
  function foldBlock({ id, head, html }) {
--    return `<details class="nh-fold nh-fold-block" id="${esc(id)}" open><summary>${head}<span>tap to open</span></summary>${html}</details>${foldScript(id)}`;
++    return `<details class="nh-fold nh-fold-block" id="${esc(id)}" open><summary>${head}${foldMeta(html)}</summary>${html}</details>${foldScript(id)}`;
  }
  
  /** The script a fold carries: closed on a phone unless the reader opened it before, and it remembers that. */
@@@ -73,4 +87,4 @@ function foldScript(id) {
      return `<script>(function(){var d=document.getElementById(${JSON.stringify(id)});if(!d)return;var k='ov_fold_'+${JSON.stringify(id)};var s=null;try{s=localStorage.getItem(k)}catch(e){}if(s==='open'){d.open=true;return}if(s==='closed'){d.open=false;return}var t=0;if(window.matchMedia&&window.matchMedia('(max-width:640px)').matches){t=Date.now();d.open=false}d.addEventListener('toggle',function(){if(Date.now()-t<300)return;try{localStorage.setItem(k,d.open?'open':'closed')}catch(e){}})})();</script>`;
  }
  
--module.exports = { pickBlock, pickRule, pickRules, pickList, pickListRule, pickListRules, foldBlock, foldScript };
++module.exports = { pickBlock, pickRule, pickRules, pickList, pickListRule, pickListRules, foldBlock, foldMeta, foldScript };