feat(app): экраны импорта отчётов, целей, доходов, ребалансировки, налогов и бенчмарков

Импорт (/imports, /instruments/pending) и фаза 4 (/goals, /income,
/rebalance, /tax, аналитика-хаб с benchmarks_card) — по
docs/ai/import-contract.md и docs/ai/phase4-contract.md. file_picker для
загрузки отчёта.

app/lib/router.dart

@@ -7,14 +7,22 @@ import 'features/accounts/accounts_page.dart';
 import 'features/cashflow/cashflow_page.dart';
 import 'features/categories/categories_page.dart';
 import 'features/events/events_page.dart';
+import 'features/goals/goals_page.dart';
 import 'features/home/home_page.dart';
+import 'features/income/income_page.dart';
+import 'features/imports/import_preview_page.dart';
+import 'features/imports/imports_page.dart';
 import 'features/login/login_page.dart';
+import 'features/pending/pending_page.dart';
 import 'features/portfolio/instrument_page.dart';
 import 'features/portfolio/portfolio_page.dart';
+import 'features/rebalance/rebalance_page.dart';
 import 'features/rules/rules_page.dart';
 import 'features/settings/settings_page.dart';
+import 'features/shell/analytics_page.dart';
 import 'features/shell/app_shell.dart';
 import 'features/sync/sync_page.dart';
+import 'features/tax/tax_page.dart';
 import 'features/transactions/transactions_page.dart';
 
 final routerProvider = Provider<GoRouter>((ref) {
@@ -48,7 +56,25 @@ final routerProvider = Provider<GoRouter>((ref) {
             builder: (_, state) =>
                 InstrumentPage(instrumentId: int.parse(state.pathParameters['id']!)),
           ),
+          // Аналитика: one navigation destination, four contract routes. The hub is what
+          // the shell points at; each screen below keeps its own top-level path and stays
+          // deep-linkable (see `alsoMatches` in `app_shell.dart`).
+          GoRoute(path: '/analytics', builder: (_, _) => const AnalyticsHubPage()),
+          GoRoute(path: '/income', builder: (_, _) => const IncomePage()),
+          GoRoute(path: '/rebalance', builder: (_, _) => const RebalancePage()),
+          GoRoute(path: '/goals', builder: (_, _) => const GoalsPage()),
+          GoRoute(path: '/tax', builder: (_, _) => const TaxPage()),
           GoRoute(path: '/events', builder: (_, _) => const EventsPage()),
+          GoRoute(path: '/imports', builder: (_, _) => const ImportsPage()),
+          GoRoute(
+            path: '/imports/:id',
+            builder: (_, state) =>
+                ImportPreviewPage(importId: int.parse(state.pathParameters['id']!)),
+          ),
+          GoRoute(
+            path: '/instruments/pending',
+            builder: (_, _) => const PendingInstrumentsPage(),
+          ),
           GoRoute(path: '/cashflow', builder: (_, _) => const CashflowPage()),
           GoRoute(
             path: '/categories',