fix: CompletedOrdersTable CSV quoting, error handling, button disabled state

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/admin/analytics/CompletedOrdersTable.jsx

@@ -19,6 +19,7 @@ const COLUMNS = [
 const CompletedOrdersTable = () => {
   const [orders, setOrders] = useState([]);
   const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
   const [sortKey, setSortKey] = useState('closed_at');
   const [sortDir, setSortDir] = useState('desc');
 
@@ -28,8 +29,13 @@ const CompletedOrdersTable = () => {
       .select('*')
       .eq('status', 'закрыт')
       .order('closed_at', { ascending: false })
-      .then(({ data }) => {
-        setOrders(data || []);
+      .then(({ data, error }) => {
+        if (error) {
+          console.error('Failed to load completed orders:', error);
+          setError(error.message);
+        } else {
+          setOrders(data || []);
+        }
         setLoading(false);
       });
   }, []);
@@ -52,22 +58,27 @@ const CompletedOrdersTable = () => {
   });
 
   const exportCsv = () => {
-    const header = COLUMNS.map((c) => c.label).join(',');
+    const q = (val) => `"${String(val ?? '').replace(/"/g, '""')}"`;
+    const headers = ['Дата закрытия', 'Имя', 'Телефон', 'Тип объекта', 'Площадь м²', 'Итоговая стоимость', 'Ответственный']
+      .map(q).join(',');
     const rows = sorted.map((o) => [
       o.closed_at ? new Date(o.closed_at).toLocaleDateString('ru-RU') : '',
-      `"${(o.name || '').replace(/"/g, '""')}"`,
+      o.name || '',
+      o.phone || '',
       OBJECT_TYPE_LABELS[o.object_type] || o.object_type || '',
       o.area_sqm ?? '',
       o.final_cost ?? '',
-      `"${(o.assigned_to || '').replace(/"/g, '""')}"`,
-    ].join(','));
-    const csv = [header, ...rows].join('\n');
+      o.assigned_to || '',
+    ].map(q).join(','));
+    const csv = [headers, ...rows].join('\n');
     const blob = new Blob(['' + csv], { type: 'text/csv;charset=utf-8;' });
     const url = URL.createObjectURL(blob);
     const a = document.createElement('a');
     a.href = url;
-    a.download = `completed_orders_${new Date().toISOString().slice(0, 10)}.csv`;
+    a.download = `zakazy_${new Date().toISOString().slice(0, 10)}.csv`;
+    document.body.appendChild(a);
     a.click();
+    document.body.removeChild(a);
     URL.revokeObjectURL(url);
   };
 
@@ -93,14 +104,18 @@ const CompletedOrdersTable = () => {
         </h2>
         <button
           onClick={exportCsv}
+          disabled={loading}
           className="btn-primary"
-          style={{ display: 'flex', alignItems: 'center', gap: '7px', padding: '8px 16px', fontSize: '0.85rem' }}
+          style={{ display: 'flex', alignItems: 'center', gap: '7px', padding: '8px 16px', fontSize: '0.85rem', opacity: loading ? 0.5 : 1, cursor: loading ? 'not-allowed' : 'pointer' }}
         >
           <Download size={14} />
           Экспорт CSV
         </button>
       </div>
 
+      {error && (
+        <p role="alert" style={{ color: '#ef4444', marginBottom: '14px', fontSize: '0.88rem' }}>{error}</p>
+      )}
       {loading ? (
         <p style={{ textAlign: 'center', padding: '60px', color: 'var(--text-muted)' }}>Загрузка...</p>
       ) : orders.length === 0 ? (