Add AI-check details modal on worker page and raise backup upload limit

public/js/worker.js

@@ -17,6 +17,7 @@ const STATUS_BADGE = {
 let state = null;
 let refreshTimer = null;
 let busy = false;
+let recentRows = [];
 
 function fmtDur(ms) {
   if (ms === null || ms === undefined || ms < 0) return '—';
@@ -141,13 +142,15 @@ function renderRecent() {
   const empty = document.getElementById('recentEmpty');
   if (!rows.length) { tbody.innerHTML = ''; empty.style.display = 'block'; return; }
   empty.style.display = 'none';
-  tbody.innerHTML = rows.map(r => `
+  recentRows = rows;
+  tbody.innerHTML = rows.map((r, i) => `
     <tr>
       <td style="white-space:nowrap">${fmtTime(r.ai_checked_at)}</td>
       <td>${esc(r.student_name)}</td>
       <td style="color:var(--muted)">${esc(r.group_name || '')}</td>
       <td>${statusBadge(r.ai_status)}</td>
       <td>${r.changed ? '✏️ исправлен' : '—'}</td>
+      <td><button type="button" class="ai-details" data-ai-idx="${i}">Подробнее</button></td>
     </tr>`).join('');
 }
 
@@ -225,6 +228,23 @@ document.getElementById('requeueBtn').addEventListener('click', requeueFailed);
 document.getElementById('recentFilter').addEventListener('change', renderRecent);
 document.getElementById('autoRefresh').addEventListener('change', e => setAutoRefresh(e.target.checked));
 
+document.getElementById('recentTable').addEventListener('click', e => {
+  const btn = e.target.closest('.ai-details');
+  if (!btn) return;
+  const r = recentRows[parseInt(btn.dataset.aiIdx, 10)];
+  if (!r) return;
+  document.getElementById('aiDetailTitle').textContent = `ИИ-проверка #${r.id} — ${r.student_name}`;
+  document.getElementById('aiDetailInput').textContent = r.description_original || '—';
+  document.getElementById('aiDetailOutput').textContent = r.description_ai || '—';
+  document.getElementById('aiDetailModal').classList.add('open');
+});
+document.getElementById('aiDetailCloseBtn').addEventListener('click', () => {
+  document.getElementById('aiDetailModal').classList.remove('open');
+});
+document.getElementById('aiDetailModal').addEventListener('click', e => {
+  if (e.target === e.currentTarget) e.currentTarget.classList.remove('open');
+});
+
 (async () => {
   if (await requireAdminPage()) {
     buildSidebar(document.body.dataset.page);