Implement UI components and quick wins

- Complete Dashboard page with statistics, recent activity, compliance status
- Complete Transactions page with form, validation, E&O uplift display
- Complete Treasury page with account management
- Complete Reports page with BCB report generation and export
- Add LoadingSpinner component
- Add ErrorBoundary component
- Add Toast notification system
- Add comprehensive input validation
- Add error handling utilities
- Add basic unit tests structure
- Fix XML exporter TypeScript errors
- All quick wins completed

apps/web/src/App.tsx

@@ -1,4 +1,5 @@
 import { BrowserRouter, Routes, Route, Link } from 'react-router-dom';
+import { ErrorBoundary } from './components/ErrorBoundary';
 import DashboardPage from './pages/DashboardPage';
 import TransactionsPage from './pages/TransactionsPage';
 import TreasuryPage from './pages/TreasuryPage';
@@ -6,8 +7,9 @@ import ReportsPage from './pages/ReportsPage';
 
 function App() {
   return (
-    <BrowserRouter>
-      <div className="min-h-screen bg-gray-50">
+    <ErrorBoundary>
+      <BrowserRouter>
+        <div className="min-h-screen bg-gray-50">
         <nav className="bg-white shadow-sm border-b">
           <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
             <div className="flex justify-between h-16">
@@ -56,8 +58,9 @@ function App() {
             <Route path="/reports" element={<ReportsPage />} />
           </Routes>
         </main>
-      </div>
-    </BrowserRouter>
+        </div>
+      </BrowserRouter>
+    </ErrorBoundary>
   );
 }