Improve portable launch, forge persistence, and operator auth UX.

Persist build extra_files for Build Manager history, print dashboard login on every start, add libp2p for Mesh P2P forge, defer WebSocket until login, and split devrun.bat from LAUNCH.bat with USB deck auto-detection.

server/web/src/main.tsx

@@ -2,6 +2,7 @@ import React from 'react';
 import ReactDOM from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
 import App from './App';
+import { routerFuture } from './routerFuture';
 import ErrorBoundary from './components/ErrorBoundary';
 import './styles/global.css';
 import './styles/steampunk-theme.css';
@@ -21,7 +22,7 @@ ReactDOM.createRoot(document.getElementById('root')!).render(
         </div>
       }
     >
-      <BrowserRouter>
+      <BrowserRouter future={routerFuture}>
         <App />
       </BrowserRouter>
     </ErrorBoundary>