docs: date leaderboard results and attach Astra retest evidence

rpent/benchmarks/embed.html

@@ -24,6 +24,6 @@ <h2 id="page-section-heading" class="page-section-title">Performance</h2>
     </section>
     <section id="time-token-costs" class="cost-section" aria-label="Time &amp; Token Costs" data-i18n-label="costs"></section>
   </main>
-  <footer><span data-i18n="title">RPent Leaderboard</span><a href="#top" data-i18n="backTop">返回顶部</a></footer>
+  <footer><div class="footer-context"><p class="scope-note evaluation-notice" data-evaluation-notice>* Leaderboard 中所有 RPent 方法均展示 2026.09 测试结果。</p><span data-i18n="title">RPent Leaderboard</span></div><a href="#top" data-i18n="backTop">返回顶部</a></footer>
   <div id="chart-tooltip" class="chart-tooltip" role="tooltip" hidden></div>
   <p id="announcement" class="sr-only" aria-live="polite"></p>

rpent/benchmarks/leaderboard.js

@@ -188,6 +188,7 @@
     (options.embedded?document.host:document.documentElement).lang=lang==='en'?'en':'zh-CN';
     if(!options.embedded)document.title=t('title');
     document.querySelectorAll('[data-i18n]').forEach(el=>el.textContent=t(el.dataset.i18n));
+    document.querySelectorAll('[data-evaluation-notice]').forEach(el=>el.textContent=tr(d.evaluation_notice));
     document.querySelectorAll('[data-i18n-label]').forEach(el=>el.setAttribute('aria-label',t(el.dataset.i18nLabel)));
     const language=document.getElementById('language');language.textContent=lang==='en'?'中文':'English';language.lang=lang==='en'?'zh-CN':'en';language.setAttribute('aria-label',lang==='en'?'切换为中文':'Switch to English');
     document.getElementById('leaderboards').innerHTML=d.sections.filter(s=>!s.parent).map(s=>`<section id="${s.id}" class="benchmark-band"><div class="benchmark-shell"><details data-module="${s.id}"${collapsedModules.has(s.id)?'':' open'}><summary class="module-header"><h3 class="benchmark-wordmark">${h(s.name)}</h3></summary><div class="module-content"><div id="panel-${s.id}"></div>${d.sections.filter(c=>c.parent===s.id).map(c=>`<section id="${c.id}" class="benchmark-subsection"><div id="panel-${c.id}"></div></section>`).join('')}</div></details></div></section>`).join('');

rpent/benchmarks/results.json

@@ -1,6 +1,10 @@
 {
   "schema_version": 2,
   "checked_at": "2026-09-22",
+  "evaluation_notice": {
+    "en": "* All RPent method results shown in this leaderboard are from September 2026 evaluations.",
+    "zh": "* Leaderboard 中所有 RPent 方法均展示 2026.09 测试结果。"
+  },
   "paper_revision": "2607.08448v4",
   "repository_revision": "43f32aa08cba07bd4d49a4bfa5eba4ef633e9b92",
   "configurations": [