feat(automation): complete unified automation system redesign

Phase 4 completion:
- Add ApprovalQueue component for managing pending approvals
- Add ExecutionResult component for displaying hand/workflow results
- Update Sidebar navigation to use unified AutomationPanel
- Replace separate 'hands' and 'workflow' tabs with single 'automation' tab
- Fix TypeScript type safety issues with unknown types in JSX expressions

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

desktop/src/main.tsx

@@ -2,9 +2,12 @@
 import ReactDOM from 'react-dom/client';
 import App from './App';
 import './index.css';
+import { ToastProvider } from './components/ui/Toast';
 
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
-    <App />
+    <ToastProvider>
+      <App />
+    </ToastProvider>
   </React.StrictMode>,
 );