updates :)

admin/static/dashboard.html

@@ -56,7 +56,7 @@
     .pill { display: inline-block; border-radius: 999px; padding: 2px 10px; font-size: 11px; font-weight: 600; }
     .pill.ok  { background: rgba(34,197,94,.15); color: var(--green); }
     .pill.err { background: rgba(239,68,68,.15);  color: var(--red); }
-    .pill.active-badge { background: rgba(99,102,241,.2); color: var(--accent); }
+    .pill.id-badge { background: rgba(99,102,241,.12); color: var(--muted); font-family: monospace; }
 
     .reason-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); }
     .reason-row:last-child { border-bottom: none; }
@@ -83,7 +83,7 @@
       background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
       padding: 16px 18px; display: flex; align-items: flex-start; gap: 14px;
     }
-    .config-card.is-active { border-color: var(--accent); }
+    .config-card { cursor: default; }
     .config-info { flex: 1; }
     .config-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
     .config-meta { color: var(--muted); font-size: 12px; }
@@ -188,12 +188,6 @@
       <summary>Advanced Settings</summary>
       <div class="adv-body">
 
-        <div class="fg">
-          <label style="display:flex;align-items:center;gap:8px;cursor:pointer">
-            <input id="cfg-active" type="checkbox" style="width:auto" /> Set as active config
-          </label>
-        </div>
-
         <div class="form-section">Search Step</div>
         <div class="form-row">
           <div class="fg">
@@ -313,6 +307,7 @@
   <div class="tab active" data-tab="dashboard">Dashboard</div>
   <div class="tab" data-tab="flows">Flow Configs</div>
   <div class="tab" data-tab="batch">Batch Run</div>
+  <div class="tab" data-tab="logs">Logs</div>
 </div>
 
 <!-- ── Dashboard Tab ──────────────────────────────────────────── -->
@@ -355,7 +350,7 @@
   <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:20px">
     <div>
       <div style="font-size:16px;font-weight:600;margin-bottom:4px">Flow Configurations</div>
-      <div style="color:var(--muted);font-size:13px">Only one config is active at a time. The crawler picks it up on every run.</div>
+      <div style="color:var(--muted);font-size:13px">Select a config in the Batch Run tab to use it for a run.</div>
     </div>
     <div style="display:flex;gap:8px">
       <button class="btn btn-ghost" id="btn-import-config">↑ Import</button>
@@ -374,13 +369,22 @@
 <div class="tab-panel" id="tab-batch">
 <main>
   <div style="font-size:16px;font-weight:600;margin-bottom:4px">Batch Run</div>
-  <div style="color:var(--muted);font-size:13px;margin-bottom:24px">Launch many parallel crawler sessions using the active flow config.</div>
+  <div style="color:var(--muted);font-size:13px;margin-bottom:24px">Launch many parallel crawler sessions using a selected flow config.</div>
 
-  <div style="display:grid;grid-template-columns:320px 1fr;gap:20px;max-width:1100px">
+  <div style="display:grid;grid-template-columns:320px 1fr;gap:20px;max-width:1100px;align-items:start">
+
+    <!-- Left column: controls + queue -->
+    <div style="display:flex;flex-direction:column;gap:16px">
 
     <!-- Controls -->
-    <div class="panel" style="align-self:start">
+    <div class="panel">
       <div class="section-title">Configuration</div>
+      <div class="fg" style="margin-bottom:14px">
+        <label>Flow Config</label>
+        <select id="batch-config-select" style="width:100%">
+          <option value="">— select a config —</option>
+        </select>
+      </div>
       <div class="fg" style="margin-bottom:14px">
         <label>Workers <span style="color:var(--muted)">(parallel Chrome instances)</span></label>
         <input id="batch-workers" type="number" min="1" max="50" value="3" />
@@ -398,20 +402,37 @@
         <label for="batch-headless" style="cursor:pointer;margin:0">Headless</label>
       </div>
       <div style="display:flex;gap:10px">
-        <button class="btn btn-primary" id="batch-start-btn" style="flex:1">▶ Start</button>
+        <button class="btn btn-primary" id="batch-start-btn" style="flex:1">+ Add to Queue</button>
         <button class="btn btn-danger" id="batch-stop-btn" style="flex:1;display:none">■ Stop</button>
       </div>
       <div id="batch-error" style="color:var(--red);font-size:12px;margin-top:10px;display:none"></div>
     </div>
 
+    <!-- Pending Queue -->
+    <div class="panel" id="queue-panel">
+      <div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:12px">
+        <div class="section-title" style="margin:0">Pending Queue <span id="queue-count-badge" style="background:var(--accent);color:#fff;border-radius:10px;padding:1px 7px;font-size:11px;margin-left:6px;display:none"></span></div>
+        <button class="btn btn-ghost btn-sm" id="queue-clear-btn" style="display:none">Clear All</button>
+      </div>
+      <div id="queue-list">
+        <p class="empty" style="font-size:12px">Queue is empty.</p>
+      </div>
+    </div>
+
+    </div> <!-- end left column -->
+
     <!-- Status -->
-    <div class="panel">
+    <div class="panel" style="overflow-y:auto;max-height:680px">
       <div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:14px">
         <div class="section-title" style="margin:0">Live Status</div>
         <span id="bs-active-badge" style="display:none;font-size:12px;color:var(--accent);font-weight:600"></span>
       </div>
       <div id="batch-idle-msg" style="color:var(--muted);font-size:13px">No batch running.</div>
       <div id="batch-status-body" style="display:none">
+
+        <!-- Completion banner -->
+        <div id="bs-completion-banner" style="display:none;border-radius:7px;padding:8px 12px;font-size:12px;font-weight:600;margin-bottom:14px"></div>
+
         <div style="margin-bottom:16px">
           <div style="display:flex;justify-content:space-between;margin-bottom:6px">
             <span style="color:var(--muted);font-size:12px">Progress</span>
@@ -436,27 +457,89 @@
           </div>
         </div>
         <div style="font-size:12px;color:var(--muted);margin-bottom:14px">
+          Config: <strong id="bs-config-name">–</strong> &nbsp;·&nbsp;
           Workers: <strong id="bs-workers">–</strong> &nbsp;·&nbsp;
           Started: <strong id="bs-started">–</strong>
           <span id="bs-finished-row" style="display:none"> &nbsp;·&nbsp; Finished: <strong id="bs-finished">–</strong></span>
         </div>
 
-        <!-- Per-worker table -->
+        <!-- Per-worker table with scroll -->
         <div class="section-title">Workers</div>
-        <table id="bs-worker-table" style="font-size:12px">
-          <thead>
-            <tr>
-              <th>#</th>
-              <th>Status</th>
-              <th>Duration</th>
-              <th>Error</th>
-            </tr>
-          </thead>
-          <tbody id="bs-worker-tbody"></tbody>
-        </table>
+        <div style="max-height:320px;overflow-y:auto;border:1px solid var(--border);border-radius:7px">
+          <table id="bs-worker-table" style="font-size:12px">
+            <thead style="position:sticky;top:0;background:var(--surface);z-index:1">
+              <tr>
+                <th>#</th>
+                <th>Status</th>
+                <th>Duration</th>
+                <th>Error</th>
+              </tr>
+            </thead>
+            <tbody id="bs-worker-tbody"></tbody>
+          </table>
+        </div>
       </div>
     </div>
   </div>
+
+  <!-- Batch run history -->
+  <div class="panel" style="margin-top:20px;max-width:1100px">
+    <div class="section-title" style="margin-bottom:14px">Run History</div>
+    <div style="overflow-x:auto">
+      <table id="batch-history-table">
+        <thead>
+          <tr>
+            <th>#</th>
+            <th>Started</th>
+            <th>Config</th>
+            <th>Workers</th>
+            <th>Total</th>
+            <th>Succeeded</th>
+            <th>Failed</th>
+            <th>Duration</th>
+            <th>Status</th>
+          </tr>
+        </thead>
+        <tbody id="batch-history-tbody">
+          <tr><td colspan="9" class="empty">No batch runs yet.</td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</main>
+</div>
+
+<!-- ── Logs Tab ───────────────────────────────────────────────── -->
+<div class="tab-panel" id="tab-logs">
+<main>
+  <div class="panel" style="margin-bottom:20px">
+    <div style="display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px">
+      <span class="section-title" style="margin:0">Log Viewer</span>
+      <select id="log-level" style="background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px;font-size:12px">
+        <option value="">All levels</option>
+        <option value="DEBUG">DEBUG</option>
+        <option value="INFO">INFO</option>
+        <option value="WARNING">WARNING</option>
+        <option value="ERROR">ERROR</option>
+        <option value="CRITICAL">CRITICAL</option>
+      </select>
+      <input id="log-search" type="text" placeholder="Filter…" style="background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:12px;width:200px" />
+      <select id="log-n" style="background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px;font-size:12px">
+        <option value="100">100 lines</option>
+        <option value="200" selected>200 lines</option>
+        <option value="500">500 lines</option>
+        <option value="1000">1000 lines</option>
+      </select>
+      <button class="btn" onclick="loadLogs()" style="padding:4px 14px;font-size:12px">↻ Refresh</button>
+      <label style="display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);cursor:pointer">
+        <input type="checkbox" id="log-tail" checked style="accent-color:var(--accent)" /> Auto-refresh (5s)
+      </label>
+      <span id="log-file" style="color:var(--muted);font-size:11px;margin-left:auto"></span>
+    </div>
+    <div id="log-output" style="background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:14px;height:68vh;overflow-y:auto;font-family:monospace;font-size:12px;line-height:1.6;white-space:pre-wrap;word-break:break-all">
+      <span style="color:var(--muted)">Loading…</span>
+    </div>
+  </div>
 </main>
 </div>
 
@@ -548,7 +631,9 @@ document.querySelectorAll('.tab').forEach(tab => {
     tab.classList.add('active');
     document.getElementById(`tab-${tab.dataset.tab}`).classList.add('active');
     if (tab.dataset.tab === 'flows') loadConfigs();
-    if (tab.dataset.tab === 'batch') pollBatchStatus();
+    if (tab.dataset.tab === 'batch') { loadConfigs(); pollBatchStatus(); loadBatchHistory(); }
+    if (tab.dataset.tab === 'logs') { loadLogs(); _startLogPoll(); }
+    else _stopLogPoll();
   });
 });
 
@@ -616,6 +701,7 @@ async function loadConfigs() {
   if (!res || !res.ok) return;
   _configs = await res.json();
   renderConfigs();
+  _refreshBatchConfigSelect();
 }
 
 function renderConfigs() {
@@ -625,11 +711,11 @@ function renderConfigs() {
     return;
   }
   el.innerHTML = _configs.map(c => `
-    <div class="config-card ${c.is_active ? 'is-active' : ''}" id="cc-${c.id}">
+    <div class="config-card" id="cc-${c.id}">
       <div class="config-info">
         <div class="config-name">
           ${esc(c.name)}
-          ${c.is_active ? '<span class="pill active-badge">ACTIVE</span>' : ''}
+          <span class="pill id-badge">#${c.id}</span>
         </div>
         <div class="config-meta">
           Searches: <strong>${(c.search_texts_json || []).length}</strong> text(s) &nbsp;·&nbsp;
@@ -644,7 +730,6 @@ function renderConfigs() {
         </div>
       </div>
       <div class="config-actions">
-        ${!c.is_active ? `<button class="btn btn-ghost btn-sm" onclick="activateConfig(${c.id})">Activate</button>` : ''}
         <button class="btn btn-ghost btn-sm" onclick="openEditForm(${c.id})">Edit</button>
         <button class="btn btn-ghost btn-sm" onclick="duplicateConfig(${c.id})">Duplicate</button>
         <button class="btn btn-ghost btn-sm" onclick="exportConfig(${c.id})">↓ Export</button>
@@ -654,9 +739,11 @@ function renderConfigs() {
   `).join('');
 }
 
-async function activateConfig(id) {
-  const res = await apiFetch(`/api/flow-configs/${id}/activate`, { method: 'POST' });
-  if (res && res.ok) await loadConfigs();
+function _refreshBatchConfigSelect() {
+  const sel = document.getElementById('batch-config-select');
+  const cur = sel.value;
+  sel.innerHTML = '<option value="">— select a config —</option>' +
+    _configs.map(c => `<option value="${c.id}" ${String(c.id) === cur ? 'selected' : ''}>${esc(c.name)} (#${c.id})</option>`).join('');
 }
 
 async function deleteConfig(id) {
@@ -705,7 +792,6 @@ async function duplicateConfig(id) {
   if (!c) return;
   const body = {
     name: c.name + ' (copy)',
-    is_active: false,
     search_texts: c.search_texts_json || [],
     search_box_selector: c.search_box_selector || '',
     search_box_selector_type: c.search_box_selector_type || 'css',
@@ -743,7 +829,6 @@ document.getElementById('import-file-input').addEventListener('change', async (e
   try { data = JSON.parse(await file.text()); } catch { alert('Invalid JSON file'); return; }
   const body = {
     name: data.name || file.name.replace(/\.json$/, ''),
-    is_active: false,
     search_texts: data.search_texts || [],
     search_box_selector: data.search_box_selector || '',
     search_box_selector_type: data.search_box_selector_type || 'css',
@@ -772,7 +857,6 @@ document.getElementById('import-file-input').addEventListener('change', async (e
 
 /* ─── Form ─── */
 function _resetAdvanced() {
-  document.getElementById('cfg-active').checked = false;
   document.getElementById('cfg-search-sel').value = '';
   document.getElementById('cfg-search-sel-type').value = 'css';
   document.getElementById('cfg-submit-sel').value = '';
@@ -815,7 +899,6 @@ function openEditForm(id) {
   document.getElementById('cfg-target-url').value = c.target_url || '';
   document.getElementById('cfg-search-texts').value = (c.search_texts_json || []).join('\n');
   document.getElementById('cfg-item-ids').value = (c.target_item_ids_json || []).join('\n');
-  document.getElementById('cfg-active').checked = !!c.is_active;
   document.getElementById('cfg-search-sel').value = c.search_box_selector || '';
   document.getElementById('cfg-search-sel-type').value = c.search_box_selector_type || 'css';
   document.getElementById('cfg-submit-sel').value = c.search_submit_selector || '';
@@ -847,7 +930,6 @@ function closeForm() {
 function collectForm() {
   return {
     name: document.getElementById('cfg-name').value.trim(),
-    is_active: document.getElementById('cfg-active').checked,
     search_texts: document.getElementById('cfg-search-texts').value.split('\n').map(s => s.trim()).filter(Boolean),
     search_box_selector: document.getElementById('cfg-search-sel').value.trim(),
     search_box_selector_type: document.getElementById('cfg-search-sel-type').value,
@@ -939,14 +1021,16 @@ function renderBatchStatus(s) {
   const idle     = document.getElementById('batch-idle-msg');
   const body     = document.getElementById('batch-status-body');
   const errEl    = document.getElementById('batch-error');
-  const startBtn = document.getElementById('batch-start-btn');
   const stopBtn  = document.getElementById('batch-stop-btn');
   const badge    = document.getElementById('bs-active-badge');
+  const banner   = document.getElementById('bs-completion-banner');
+
+  // Always render queue
+  renderQueue(s.queue || []);
 
   if (!s.batch_id) {
     idle.style.display = '';
     body.style.display = 'none';
-    startBtn.style.display = '';
     stopBtn.style.display = 'none';
     badge.style.display = 'none';
     return;
@@ -956,11 +1040,16 @@ function renderBatchStatus(s) {
   body.style.display = '';
 
   const pct = s.total ? Math.round(s.completed / s.total * 100) : 0;
+  const barColor = !s.running
+    ? (s.stopping ? 'var(--yellow)' : s.error ? 'var(--red)' : 'var(--green)')
+    : 'var(--accent)';
+  document.getElementById('batch-progress-bar').style.background = barColor;
   document.getElementById('batch-progress-bar').style.width = pct + '%';
   document.getElementById('batch-progress-label').textContent = `${s.completed} / ${s.total}`;
   document.getElementById('bs-completed').textContent = s.completed ?? 0;
   document.getElementById('bs-succeeded').textContent = s.succeeded ?? 0;
   document.getElementById('bs-failed').textContent = s.failed ?? 0;
+  document.getElementById('bs-config-name').textContent = s.config_name || '–';
   document.getElementById('bs-workers').textContent = s.configured_workers ?? '–';
   document.getElementById('bs-started').textContent = fmtTs(s.started_at);
 
@@ -972,6 +1061,23 @@ function renderBatchStatus(s) {
     finRow.style.display = 'none';
   }
 
+  // Completion banner
+  if (!s.running && s.finished_at) {
+    let msg, bg, color;
+    if (s.stopping) {
+      msg = '■ Stopped'; bg = 'rgba(234,179,8,.15)'; color = 'var(--yellow)';
+    } else if (s.error) {
+      msg = '✕ Error: ' + s.error; bg = 'rgba(239,68,68,.12)'; color = 'var(--red)';
+    } else {
+      msg = `✓ Batch complete — ${s.succeeded ?? 0} succeeded, ${s.failed ?? 0} failed`;
+      bg = 'rgba(34,197,94,.12)'; color = 'var(--green)';
+    }
+    banner.textContent = msg;
+    banner.style.cssText = `display:block;border-radius:7px;padding:8px 12px;font-size:12px;font-weight:600;margin-bottom:14px;background:${bg};color:${color}`;
+  } else {
+    banner.style.display = 'none';
+  }
+
   // Active worker badge
   const active = s.active_workers ?? 0;
   if (s.running && active > 0) {
@@ -992,7 +1098,7 @@ function renderBatchStatus(s) {
       <td style="font-family:monospace">${w.slot}</td>
       <td style="color:${color};font-weight:600">${label}</td>
       <td>${fmtDuration(w.duration_ms)}</td>
-      <td style="max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">${err}</td>
+      <td style="max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">${err}</td>
     </tr>`;
   }).join('');
 
@@ -1004,16 +1110,52 @@ function renderBatchStatus(s) {
   }
 
   if (s.running) {
-    startBtn.style.display = 'none';
     stopBtn.style.display = '';
     stopBtn.disabled = s.stopping || false;
     stopBtn.textContent = s.stopping ? '■ Stopping…' : '■ Stop';
   } else {
-    startBtn.style.display = '';
     stopBtn.style.display = 'none';
   }
 }
 
+function renderQueue(queue) {
+  const list  = document.getElementById('queue-list');
+  const badge = document.getElementById('queue-count-badge');
+  const clearBtn = document.getElementById('queue-clear-btn');
+
+  if (!queue.length) {
+    list.innerHTML = '<p class="empty" style="font-size:12px">Queue is empty.</p>';
+    badge.style.display = 'none';
+    clearBtn.style.display = 'none';
+    return;
+  }
+
+  badge.textContent = queue.length;
+  badge.style.display = '';
+  clearBtn.style.display = '';
+
+  list.innerHTML = queue.map((t, i) => `
+    <div style="display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--border)">
+      <span style="color:var(--muted);font-size:11px;width:18px;text-align:right">${i + 1}</span>
+      <div style="flex:1;min-width:0">
+        <div style="font-weight:600;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">${esc(t.config_name || '–')}</div>
+        <div style="color:var(--muted);font-size:11px">${t.workers}w · ${t.total_runs} runs · ${t.stagger_ms}ms stagger</div>
+      </div>
+      <button class="btn btn-danger btn-sm" onclick="removeQueueItem('${t.queue_id}')">✕</button>
+    </div>
+  `).join('').replace(/<div[^>]*>.*?<\/div>\s*$/, s => s.replace('border-bottom:1px solid var(--border)', ''));
+}
+
+async function removeQueueItem(queueId) {
+  const res = await apiFetch(`/api/batch-queue/${queueId}`, { method: 'DELETE' });
+  if (res && res.ok) await pollBatchStatus();
+}
+
+document.getElementById('queue-clear-btn').addEventListener('click', async () => {
+  const res = await apiFetch('/api/batch-queue/clear', { method: 'POST' });
+  if (res && res.ok) await pollBatchStatus();
+});
+
 async function pollBatchStatus() {
   const res = await apiFetch('/api/batch-status');
   if (!res || !res.ok) return;
@@ -1032,27 +1174,31 @@ function startBatchPoll() {
     if (!st.running) {
       clearInterval(_batchPollTimer);
       _batchPollTimer = null;
+      // Delay history reload to allow the DB finish() write to complete
+      setTimeout(loadBatchHistory, 2000);
     }
   }, 1500);
 }
 
 document.getElementById('batch-start-btn').addEventListener('click', async () => {
+  const configId = parseInt(document.getElementById('batch-config-select').value);
+  if (!configId) { alert('Please select a flow config.'); return; }
   const workers  = parseInt(document.getElementById('batch-workers').value) || 3;
   const runs     = parseInt(document.getElementById('batch-runs').value) || 10;
   const stagger  = parseInt(document.getElementById('batch-stagger').value) || 0;
   const headless = document.getElementById('batch-headless').checked;
 
-  const res = await apiFetch('/api/run-batch', {
+  const res = await apiFetch('/api/batch-queue', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ workers, total_runs: runs, stagger_ms: stagger, headless }),
+    body: JSON.stringify({ config_id: configId, workers, total_runs: runs, stagger_ms: stagger, headless }),
   });
 
   if (!res) return;
-  if (res.status === 409) { alert('A batch is already running.'); return; }
-  if (res.status === 422) { const d = await res.json(); alert(d.detail || 'No active flow config.'); return; }
-  if (!res.ok) { alert('Failed to start batch.'); return; }
+  if (res.status === 404) { const d = await res.json(); alert(d.detail || 'Flow config not found.'); return; }
+  if (!res.ok) { alert('Failed to add task.'); return; }
 
+  const data = await res.json();
   await pollBatchStatus();
   startBatchPoll();
 });
@@ -1067,6 +1213,115 @@ document.getElementById('batch-stop-btn').addEventListener('click', async () =>
     btn.textContent = '■ Stop';
   }
 });
+
+/* ──────────────────────── Batch Run History ────────────────────── */
+async function loadBatchHistory() {
+  const res = await apiFetch('/api/batch-runs');
+  if (!res || !res.ok) return;
+  renderBatchHistory(await res.json());
+}
+
+/* ─────────────────────────── Logs ──────────────────────────── */
+let _logPollTimer = null;
+
+const _LEVEL_COLORS = {
+  DEBUG:    '#8892a4',
+  INFO:     '#6ee7b7',
+  WARNING:  '#eab308',
+  ERROR:    '#ef4444',
+  CRITICAL: '#f97316',
+};
+
+function _colorLine(line) {
+  for (const [lvl, col] of Object.entries(_LEVEL_COLORS)) {
+    if (line.includes(lvl)) {
+      return `<span style="color:${col}">${esc(line)}</span>`;
+    }
+  }
+  return `<span style="color:var(--muted)">${esc(line)}</span>`;
+}
+
+async function loadLogs() {
+  const level  = document.getElementById('log-level').value;
+  const q      = document.getElementById('log-search').value;
+  const n      = document.getElementById('log-n').value;
+  const params = new URLSearchParams({ n, level, q });
+  const res    = await apiFetch(`/api/logs?${params}`);
+  if (!res || !res.ok) return;
+  const data = await res.json();
+  document.getElementById('log-file').textContent = data.file || '';
+  const out = document.getElementById('log-output');
+  if (!data.lines.length) {
+    out.innerHTML = '<span style="color:var(--muted)">No log entries.</span>';
+    return;
+  }
+  out.innerHTML = data.lines.map(_colorLine).join('\n');
+}
+
+function _startLogPoll() {
+  _stopLogPoll();
+  _logPollTimer = setInterval(() => {
+    if (document.getElementById('log-tail').checked) loadLogs();
+  }, 5000);
+}
+
+function _stopLogPoll() {
+  if (_logPollTimer) { clearInterval(_logPollTimer); _logPollTimer = null; }
+}
+
+document.addEventListener('DOMContentLoaded', () => {
+  document.getElementById('log-tail').addEventListener('change', e => {
+    if (e.target.checked) _startLogPoll(); else _stopLogPoll();
+  });
+  ['log-level', 'log-n'].forEach(id =>
+    document.getElementById(id).addEventListener('change', loadLogs)
+  );
+  let _debounce;
+  document.getElementById('log-search').addEventListener('input', () => {
+    clearTimeout(_debounce);
+    _debounce = setTimeout(loadLogs, 300);
+  });
+});
+
+/* ──────────────────────── Batch Run History ────────────────────── */
+function renderBatchHistory(rows) {
+  const tbody = document.getElementById('batch-history-tbody');
+  if (!rows.length) {
+    tbody.innerHTML = '<tr><td colspan="9" class="empty">No batch runs yet.</td></tr>';
+    return;
+  }
+  tbody.innerHTML = rows.map(r => {
+    const dur = r.finished_at && r.started_at
+      ? fmtDuration((new Date(r.finished_at) - new Date(r.started_at)))
+      : '–';
+    let statusLabel, statusColor;
+    if (!r.finished_at) {
+      statusLabel = '⟳ running'; statusColor = 'var(--accent)';
+    } else if (r.stopped) {
+      statusLabel = '■ stopped'; statusColor = 'var(--yellow)';
+    } else if (r.error) {
+      statusLabel = '✕ error'; statusColor = 'var(--red)';
+    } else if (r.failed > 0 && r.succeeded === 0) {
+      statusLabel = 'all failed'; statusColor = 'var(--red)';
+    } else {
+      statusLabel = '✓ done'; statusColor = 'var(--green)';
+    }
+    const configLabel = r.config_name
+      ? `${esc(r.config_name)} <span style="color:var(--muted);font-size:11px">#${r.config_id}</span>`
+      : `<span style="color:var(--muted)">#${r.config_id ?? '–'}</span>`;
+    return `<tr>
+      <td style="color:var(--muted);font-family:monospace;font-size:11px">${r.batch_id.slice(0,8)}</td>
+      <td style="white-space:nowrap;color:var(--muted)">${fmtTime(r.started_at)}</td>
+      <td>${configLabel}</td>
+      <td style="text-align:center">${r.workers}</td>
+      <td style="text-align:center">${r.total_runs}</td>
+      <td style="text-align:center;color:var(--green);font-weight:600">${r.succeeded}</td>
+      <td style="text-align:center;color:var(--red);font-weight:600">${r.failed}</td>
+      <td style="color:var(--muted)">${dur}</td>
+      <td style="color:${statusColor};font-weight:600">${statusLabel}</td>
+    </tr>`;
+  }).join('');
+}
 </script>
 </body>
 </html>