feat: initial commit — backend API + student cabinet frontend

- Go backend: auth (JWT), points earn/spend, QR token generation,
  partners, admin grant/stats endpoints with chi router
- Next.js 14 frontend: login, student dashboard, transaction history,
  QR display, partners list
- PostgreSQL migrations (4 tables), Redis cache, Docker Compose
- CORS middleware, role-based route protection, Zustand auth store

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

frontend/components/TransactionList.tsx

@@ -0,0 +1,45 @@
+import type { Transaction } from '@/lib/types';
+import { Badge, Spinner } from '@/components/ui';
+import { formatDate, formatTransactionAmount } from '@/lib/utils';
+
+interface TransactionListProps {
+  transactions: Transaction[];
+  isLoading: boolean;
+}
+
+export function TransactionList({ transactions, isLoading }: TransactionListProps) {
+  if (isLoading) {
+    return (
+      <div className="flex justify-center py-10">
+        <Spinner />
+      </div>
+    );
+  }
+
+  if (transactions.length === 0) {
+    return (
+      <p className="py-8 text-center text-sm text-gray-500">Пока нет операций</p>
+    );
+  }
+
+  return (
+    <ul className="divide-y divide-gray-700">
+      {transactions.map((tx) => (
+        <li key={tx.id} className="flex items-center gap-3 py-3">
+          <Badge type={tx.type} />
+          <div className="min-w-0 flex-1">
+            <p className="truncate text-sm font-medium text-gray-100">
+              {tx.description || (tx.type === 'spend' ? 'Оплата у партнёра' : 'Начисление поинтов')}
+            </p>
+            <p className="text-xs text-gray-500">{formatDate(tx.created_at)}</p>
+          </div>
+          <span
+            className={`shrink-0 text-sm font-semibold tabular-nums ${tx.amount >= 0 ? 'text-green-400' : 'text-red-400'}`}
+          >
+            {formatTransactionAmount(tx.amount)}
+          </span>
+        </li>
+      ))}
+    </ul>
+  );
+}