diff --git a/deploy/app.js b/deploy/app.js
index 5d60219..86b5e0d 100644
--- a/deploy/app.js
+++ b/deploy/app.js
@@ -11,6 +11,7 @@ var fileInput = document.getElementById('fileInput');
 var fileTable = document.getElementById('fileTable');
 var fileQueue = [];
 var contractId = null;
+var batchId = crypto.randomUUID();  // классификация: привязка всех файлов сессии
 
 function formatSize(bytes) {
   if (!bytes || bytes === 0) return '—';
@@ -207,13 +208,94 @@ fileInput.addEventListener('change', async function() {
 
   fileInput.value = '';
   fileInput.disabled = false;
-  // Показать кнопки LLM после авто-парсинга
+  // Показать кнопки после авто-парсинга
   var llmBtn = document.getElementById('llmBtn');
   llmBtn.style.display = 'flex';
   llmBtn.disabled = false;
+  showClassifyBtn();
   lucide.createIcons();
 });
 
+// ── Классификация ──────────────────────────────────────────
+function showClassifyBtn() {
+  var btn = document.getElementById('classifyBtn');
+  if (!btn) {
+    btn = document.createElement('button');
+    btn.id = 'classifyBtn';
+    btn.className = 'btn btn-primary';
+    btn.style.cssText = 'width:100%;justify-content:center;margin-top:8px;background:var(--brand-primary);border-color:var(--brand-primary);';
+    btn.innerHTML = '<i data-lucide="tags" style="width:16px;height:16px;"></i> Классифицировать';
+    btn.addEventListener('click', runClassify);
+    document.getElementById('llmBtn').parentNode.insertBefore(btn, document.getElementById('llmBtn'));
+  }
+  btn.style.display = 'flex';
+  btn.disabled = false;
+}
+
+async function runClassify() {
+  var btn = document.getElementById('classifyBtn');
+  btn.disabled = true;
+  btn.innerHTML = '<span class="spinner"></span> Классификация...';
+
+  try {
+    var resp = await fetch(VM_API + '/api/classify-batch', {
+      method: 'POST',
+      headers: {'Content-Type': 'application/json'},
+      body: JSON.stringify({batch_id: batchId})
+    });
+    var data = await resp.json();
+    if (data.ok) {
+      btn.innerHTML = '✓ ' + data.done + '/' + data.total + ' классифицировано';
+      loadGroups();
+    } else {
+      btn.innerHTML = '✗ ' + (data.error || 'ошибка');
+      btn.disabled = false;
+    }
+  } catch(e) {
+    btn.innerHTML = '✗ ' + e.message;
+    btn.disabled = false;
+  }
+}
+
+async function loadGroups() {
+  var resp = await fetch(VM_API + '/api/groups?batch=' + batchId);
+  var data = await resp.json();
+  if (!data.ok || !data.groups) return;
+
+  var diffBody = document.getElementById('diffBody');
+  var diffCard = document.getElementById('diffCard');
+  diffCard.style.display = 'block';
+  diffBody.innerHTML = '<div style="font-weight:600;margin-bottom:8px;">📋 Найдено групп: ' + data.groups.length + '</div>';
+
+  data.groups.forEach(function(g, gi) {
+    var isUnresolved = g.contract_number === '__unresolved__';
+    var card = document.createElement('div');
+    card.style.cssText = 'border:1px solid ' + (isUnresolved ? 'var(--destructive)' : 'var(--brand-gray)') + ';border-radius:6px;padding:10px;margin-bottom:8px;';
+    card.innerHTML = '<div style="font-weight:600;margin-bottom:6px;">' +
+      (isUnresolved ? '❓ Не распознано' : '📄 ' + (g.contract_number || 'Без номера') + ' — ' + (g.counterparty || 'контрагент не определён')) +
+      '</div>' +
+      '<div style="font-size:12px;">' +
+      g.documents.map(function(d) {
+        return '<div style="padding:2px 0;">' +
+          '<span style="color:var(--muted);">[' + (d.doc_type || '?') + ']</span> ' +
+          d.filename +
+          (d.doc_date ? ' <span style="color:var(--muted);">' + d.doc_date + '</span>' : '') +
+          '</div>';
+      }).join('') +
+      '</div>';
+    if (!isUnresolved) {
+      card.innerHTML += '<button class="btn" style="margin-top:6px;font-size:12px;height:28px;" onclick="runCompareForGroup(\'' + gi + '\')">▶ Сравнить</button>';
+    }
+    diffBody.appendChild(card);
+  });
+  lucide.createIcons();
+}
+
+window.runCompareForGroup = function(gi) {
+  // TODO: run /process-v2 for the specific contract
+  alert('Сравнение для группы ' + gi + ' — в разработке');
+};
+
 function uploadFile(file, onProgress) {
   return new Promise(function(resolve, reject) {
     // .doc → конвертация в docx
@@ -226,6 +308,7 @@ function uploadFile(file, onProgress) {
       var fd = new FormData();
       fd.append('files', uploadFile, uploadName);
       if (contractId) fd.append('contract_id', contractId);
+      fd.append('batch_id', batchId);
       xhr.open('POST', UPLOAD_URL);
       xhr.upload.onprogress = function(e) {
         if (e.lengthComputable && onProgress) onProgress(Math.round(e.loaded / e.total * 100));
diff --git a/index.cfm b/index.cfm
index 22ac895..4e84a5b 100644
--- a/index.cfm
+++ b/index.cfm
@@ -75,7 +75,7 @@
 <body>
 <div class="topbar">
   <img src="/nubes-logo.svg" alt="Nubes">
-  <span class="title">Сверка договоров — LLM AI-driven Event Sourcing <span style="font-weight:400;color:var(--muted);font-size:12px;">v1.0.162 — Lucee</span></span>
+  <span class="title">Сверка договоров — LLM AI-driven Event Sourcing <span style="font-weight:400;color:var(--muted);font-size:12px;">v1.0.163 — Lucee</span></span>
 </div>
 
 <div class="content">