fix: improve broker account shell accessibility

apps/frontend/src/pages/broker/BrokerAccountLayout.tsx

@@ -40,9 +40,9 @@ export function BrokerAccountLayout() {
           </NavLink>
         </nav>
 
-        <main className="broker-account__content">
+        <div className="broker-account__content">
           <Outlet context={context} />
-        </main>
+        </div>
       </div>
     </div>
   );

apps/frontend/src/pages/broker/BrokerPages.test.tsx

@@ -9,7 +9,7 @@ import * as operationsHook from '../../hooks/useBrokerOperations';
 import * as portfolioHook from '../../hooks/useBrokerPortfolio';
 import * as positionsHook from '../../hooks/useBrokerPositions';
 import type { BrokerPosition } from '../../api/responses';
-import { BrokerAccountLayout } from './BrokerAccountLayout';
+import { BrokerAccountLayout, useBrokerAccountContext } from './BrokerAccountLayout';
 import { BrokerAccountDetailPage } from './BrokerAccountDetailPage';
 import { BrokerAccountsPage } from './BrokerAccountsPage';
 
@@ -63,6 +63,19 @@ function mockUseBrokerPositions(...positions: BrokerPosition[]) {
   });
 }
 
+function BrokerAccountContextProbe({ expectedPortfolio }: { expectedPortfolio: unknown }) {
+  const { accountId, portfolio } = useBrokerAccountContext();
+
+  return (
+    <div>
+      <p>Account context: {accountId}</p>
+      <p>
+        {portfolio === expectedPortfolio ? 'Same portfolio query' : 'Different portfolio query'}
+      </p>
+    </div>
+  );
+}
+
 describe('Broker pages', () => {
   it('renders account section navigation with the current nested route', () => {
     vi.spyOn(portfolioHook, 'useBrokerPortfolio').mockReturnValue({
@@ -117,6 +130,59 @@ describe('Broker pages', () => {
     expect(activeLink).toHaveAttribute('aria-current', 'page');
     expect(activeLink).toHaveClass('is-active');
     expect(screen.getByText('Содержимое облигаций')).toBeInTheDocument();
+    expect(screen.queryByRole('main')).not.toBeInTheDocument();
+  });
+
+  it('passes the decoded account and exact portfolio query through outlet context', () => {
+    const portfolioResult = {
+      data: {
+        account: {
+          id: 'account one',
+          type: 'brokerage',
+          name: 'Encoded account',
+          status: 'ACCOUNT_STATUS_OPEN',
+          openedAt: null,
+          accessLevel: null,
+        },
+        totals: { portfolio: { currency: 'RUB', units: '1000', nano: 0, value: 1000 } },
+        yields: { expectedPercent: 5, daily: null, dailyPercent: null },
+        cash: [],
+        blockedCash: [],
+        asOf: '2026-06-17T00:00:00.000Z',
+      },
+      isLoading: false,
+      isFetching: false,
+      error: null,
+    } as any;
+    const portfolioSpy = vi
+      .spyOn(portfolioHook, 'useBrokerPortfolio')
+      .mockReturnValue(portfolioResult);
+
+    renderWithClient(
+      <Routes>
+        <Route path="/broker/:accountId" element={<BrokerAccountLayout />}>
+          <Route
+            path="bonds"
+            element={<BrokerAccountContextProbe expectedPortfolio={portfolioResult} />}
+          />
+        </Route>
+      </Routes>,
+      ['/broker/account%20one/bonds'],
+    );
+
+    expect(screen.getByText('Account context: account one')).toBeInTheDocument();
+    expect(screen.getByText('Same portfolio query')).toBeInTheDocument();
+    expect(portfolioSpy).toHaveBeenCalledWith('account one');
+
+    const navigation = screen.getByRole('navigation', { name: 'Разделы брокерского счёта' });
+    expect(within(navigation).getByRole('link', { name: 'Обзор' })).toHaveAttribute(
+      'href',
+      '/broker/account%20one',
+    );
+    expect(within(navigation).getByRole('link', { name: 'Облигации' })).toHaveAttribute(
+      'href',
+      '/broker/account%20one/bonds',
+    );
   });
 
   it('keeps account navigation and nested content visible when the portfolio is unavailable', () => {

apps/frontend/src/styles.css

@@ -118,9 +118,6 @@ a {
 @media (max-width: 720px) {
   .broker-account__workspace {
     gap: 16px;
-  }
-
-  .broker-account__workspace {
     grid-template-columns: minmax(0, 1fr);
   }