feat: add portfolio overview

frontend/src/App.tsx

@@ -5,6 +5,7 @@ import { LoginPage } from './pages/LoginPage';
 import { HistoryPage } from './pages/HistoryPage';
 import { AnalyticsPage } from './pages/AnalyticsPage';
 import { SettingsPage } from './pages/SettingsPage';
+import { PortfolioPage } from './pages/PortfolioPage';
 
 export function App() {
   const { user, loading } = useAuth();
@@ -23,6 +24,7 @@ export function App() {
         <Route path="/" element={<Navigate to="/history" replace />} />
         <Route path="/history" element={<HistoryPage />} />
         <Route path="/analytics" element={<AnalyticsPage />} />
+        <Route path="/portfolio" element={<PortfolioPage />} />
         <Route path="/settings" element={<SettingsPage />} />
         <Route path="*" element={<Navigate to="/history" replace />} />
       </Routes>

frontend/src/api/portfolio.ts

@@ -1,4 +1,4 @@
-import type { ImportBrokerReportResponse, ImportPortfolioResponse, PortfolioFile } from '@family-budget/shared';
+import type { ImportBrokerReportResponse, ImportPortfolioResponse, PortfolioFile, PortfolioOverviewResponse } from '@family-budget/shared';
 import { api } from './client';
 
 export function importPortfolio(data: PortfolioFile): Promise<ImportPortfolioResponse> {
@@ -10,3 +10,7 @@ export function importBrokerReport(file: File): Promise<ImportBrokerReportRespon
   formData.append('file', file);
   return api.postFormData('/api/import/broker', formData);
 }
+
+export function getPortfolioOverview(): Promise<PortfolioOverviewResponse> {
+  return api.get('/api/portfolio');
+}

frontend/src/components/Layout.tsx

@@ -63,6 +63,21 @@ export function Layout({ children }: { children: ReactNode }) {
             Операции
           </NavLink>
 
+          <NavLink
+            to="/portfolio"
+            className={({ isActive }) =>
+              `sidebar__nav-link${isActive ? ' sidebar__nav-link--active' : ''}`
+            }
+            onClick={closeDrawer}
+          >
+            <svg className="sidebar__nav-icon" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+              <path d="M3 21h18" />
+              <path d="M5 21V10l7-5 7 5v11" />
+              <path d="M9 21v-6h6v6" />
+            </svg>
+            Портфель
+          </NavLink>
+
           <NavLink
             to="/analytics"
             className={({ isActive }) =>

frontend/src/pages/PortfolioPage.tsx

@@ -0,0 +1,55 @@
+import { useEffect, useState } from 'react';
+import type { PortfolioOverviewResponse } from '@family-budget/shared';
+import { getPortfolioOverview } from '../api/portfolio';
+import { formatDate } from '../utils/format';
+
+const money = new Intl.NumberFormat('ru-RU', { style: 'currency', currency: 'RUB', minimumFractionDigits: 2 });
+const number = new Intl.NumberFormat('ru-RU', { maximumFractionDigits: 6 });
+
+export function PortfolioPage() {
+  const [data, setData] = useState<PortfolioOverviewResponse | null>(null);
+
+  useEffect(() => {
+    getPortfolioOverview().then(setData).catch(() => {});
+  }, []);
+
+  return (
+    <div className="page">
+      <div className="page__header">
+        <div>
+          <p className="page__eyebrow">Инвестиции</p>
+          <h1 className="page__title">Портфель</h1>
+        </div>
+      </div>
+
+      {!data ? <div className="state">Загрузка...</div> : data.accounts.length === 0 ? (
+        <div className="state state--empty">Портфель пока пуст. Загрузите XLSX-отчёт брокера в разделе «Операции».</div>
+      ) : data.accounts.map((account) => (
+        <section className="portfolio" key={account.accountId} aria-labelledby={`portfolio-${account.accountId}`}>
+          <div className="portfolio__header">
+            <div>
+              <h2 id={`portfolio-${account.accountId}`} className="portfolio__title">{account.accountName}</h2>
+              <p className="portfolio__meta">Состояние на {formatDate(account.reportPeriodTo)}</p>
+            </div>
+            {account.totalValuation !== null && <strong className="portfolio__total">{money.format(Number(account.totalValuation))}</strong>}
+          </div>
+          {account.positions.length === 0 ? <div className="state state--empty">В последнем отчёте нет открытых позиций.</div> : (
+            <div className="table-shell">
+              <table className="data-table">
+                <thead><tr><th className="data-table__head-cell" scope="col">Инструмент</th><th className="data-table__head-cell" scope="col">Количество</th><th className="data-table__head-cell" scope="col">Цена</th><th className="data-table__head-cell" scope="col">Стоимость</th></tr></thead>
+                <tbody className="data-table__body">
+                  {account.positions.map((position, index) => <tr className="data-table__row" key={`${position.isin ?? position.instrument}-${index}`}>
+                    <td className="data-table__cell"><div className="data-table__description">{position.instrument}</div>{position.isin && <div className="data-table__subtext">{position.isin}</div>}</td>
+                    <td className="data-table__cell data-table__cell--nowrap">{number.format(Number(position.quantity))}</td>
+                    <td className="data-table__cell data-table__cell--nowrap">{position.price === null ? '—' : money.format(Number(position.price))}</td>
+                    <td className="data-table__cell data-table__cell--nowrap money-amount">{position.valuation === null ? '—' : money.format(Number(position.valuation))}</td>
+                  </tr>)}
+                </tbody>
+              </table>
+            </div>
+          )}
+        </section>
+      ))}
+    </div>
+  );
+}

frontend/src/styles/index.css

@@ -341,6 +341,33 @@ button {
   color: var(--color-text-muted);
 }
 
+.portfolio {
+  margin-bottom: 20px;
+}
+
+.portfolio__header {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 12px;
+}
+
+.portfolio__title {
+  font-size: 18px;
+  font-weight: 850;
+}
+
+.portfolio__meta {
+  margin-top: 3px;
+  color: var(--color-text-secondary);
+}
+
+.portfolio__total {
+  font-size: 20px;
+  font-variant-numeric: tabular-nums;
+}
+
 /* ================================================================
    Forms, buttons, badges
    ================================================================ */
@@ -1462,6 +1489,11 @@ input[type="checkbox"] {
     width: 100%;
   }
 
+  .portfolio__header {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
   .filters__row,
   .analytics-panel__filters {
     align-items: stretch;