feat: click-to-sort table headers with toggle direction

app/static/index.html

@@ -168,12 +168,6 @@
     <select id="filter-provider">
       <option value="">Все провайдеры</option>
     </select>
-    <select id="filter-sort">
-      <option value="arena_text_rank">Сортировка: Text Arena Rank</option>
-      <option value="arena_agent_rank">Сортировка: Agent Arena Rank</option>
-      <option value="uptime_pct">Сортировка: Uptime %</option>
-      <option value="provider">Сортировка: Провайдер</option>
-    </select>
     <label>
       <input type="checkbox" id="filter-arena-only"> Только с рейтингом
     </label>
@@ -280,27 +274,23 @@ function applyFilters() {
   const prov = document.getElementById('filter-provider').value;
   const arenaOnly = document.getElementById('filter-arena-only').checked;
   const search = document.getElementById('search').value.toLowerCase();
-  const sortCol = document.getElementById('filter-sort').value;
+  const sortCol = currentSort.col;
+  const asc = currentSort.asc;
 
   let data = [...allData];
   if (prov) data = data.filter(m => m.provider === prov);
   if (arenaOnly) data = data.filter(m => m.arena_text_score);
   if (search) data = data.filter(m => m.id.toLowerCase().includes(search));
 
-  // sort
+  // sort (null всегда внизу независимо от направления)
+  const dir = asc ? 1 : -1;
   data.sort((a, b) => {
-    if (sortCol === 'arena_text_rank' || sortCol === 'arena_agent_rank') {
     const av = a[sortCol], bv = b[sortCol];
     if (av == null && bv == null) return 0;
     if (av == null) return 1;
     if (bv == null) return -1;
-      return av - bv;
-    }
-    if (sortCol === 'uptime_pct') {
-      const av = a[sortCol] ?? -1, bv = b[sortCol] ?? -1;
-      return bv - av;
-    }
-    return (a[sortCol] || '').localeCompare(b[sortCol] || '');
+    if (typeof av === 'number' && typeof bv === 'number') return (av - bv) * dir;
+    return String(av).localeCompare(String(bv)) * dir;
   });
 
   const tbody = document.getElementById('table-body');
@@ -316,21 +306,39 @@ function applyFilters() {
     tbody.innerHTML = data.map(renderRow).join('');
   }
 
+  updateSortHeaders();
   updateStats(data);
 }
 
+function updateSortHeaders() {
+  document.querySelectorAll('#main-table thead th[data-col]').forEach(th => {
+    const icon = th.querySelector('.sort-icon');
+    if (th.dataset.col === currentSort.col) {
+      th.classList.add('active');
+      icon.textContent = currentSort.asc ? '↑' : '↓';
+    } else {
+      th.classList.remove('active');
+      icon.textContent = '↕';
+    }
+  });
+}
+
+document.querySelectorAll('#main-table thead th[data-col]').forEach(th => {
+  th.addEventListener('click', () => {
+    const col = th.dataset.col;
+    if (currentSort.col === col) {
+      currentSort.asc = !currentSort.asc;  // повторный клик — инверсия
+    } else {
+      currentSort = { col, asc: true };
+    }
+    applyFilters();
+  });
+});
+
 async function loadData() {
   document.getElementById('loading').style.display = 'block';
   document.getElementById('main-table').style.display = 'none';
 
-  const sort = document.getElementById('filter-sort').value;
-  const prov = document.getElementById('filter-provider').value;
-  const arenaOnly = document.getElementById('filter-arena-only').checked;
-
-  let url = `/api/models?sort=${sort}`;
-  if (prov) url += `&provider=${encodeURIComponent(prov)}`;
-  if (arenaOnly) url += `&arena_only=true`;
-
   const res = await fetch('/api/models');
   allData = await res.json();
 
@@ -386,7 +394,6 @@ document.getElementById('btn-sync').addEventListener('click', async () => {
 });
 document.getElementById('filter-provider').addEventListener('change', applyFilters);
 document.getElementById('filter-arena-only').addEventListener('change', applyFilters);
-document.getElementById('filter-sort').addEventListener('change', applyFilters);
 document.getElementById('search').addEventListener('input', applyFilters);
 
 (async () => {