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/components/components.test.tsx

@@ -6,6 +6,7 @@ import { cleanup, render, screen, waitFor, fireEvent } from '@testing-library/re
 import userEvent from '@testing-library/user-event';
 import { MemoryRouter } from 'react-router-dom';
 import { type ReactNode } from 'react';
+import { routerFuture } from '../routerFuture';
 import { mockAgent, mockServerInfo } from '../test/fixtures';
 import { api } from '../api/client';
 import { downloadApiFile, downloadAuthedFile } from '../api/download';
@@ -169,7 +170,9 @@ describe('DownloadButton', () => {
     );
     const btn = screen.getByRole('button', { name: 'Save' });
     await userEvent.setup().click(btn);
-    expect(screen.getByRole('button', { name: 'Downloading…' })).toBeDisabled();
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: 'Downloading…' })).toBeDisabled();
+    });
     await waitFor(() => expect(downloadApiFileMock).toHaveBeenCalledWith('/api/x', 'a.bin'));
   });
 
@@ -645,7 +648,7 @@ describe('VisualComponents', () => {
 
   it('ForgeCalibrateCompare links to routes', () => {
     render(
-      <MemoryRouter>
+      <MemoryRouter future={routerFuture}>
         <ForgeCalibrateCompare />
       </MemoryRouter>
     );
@@ -697,7 +700,7 @@ describe('SystemStatusBar', () => {
 
   it('shows server and fleet pills after poll', async () => {
     render(
-      <MemoryRouter>
+      <MemoryRouter future={routerFuture}>
         <SystemStatusBar />
       </MemoryRouter>
     );
@@ -780,7 +783,7 @@ describe('Layout', () => {
 
   it('renders nav links and children', async () => {
     render(
-      <MemoryRouter initialEntries={['/dashboard']}>
+      <MemoryRouter initialEntries={['/dashboard']} future={routerFuture}>
         <Layout>
           <div>page body</div>
         </Layout>