Redesign dashboard with steampunk neon theme and live gauges.

Ambient background, 3D neon cards, brass HUD styling, glowing charts, gauge rings, and refreshed Command Deck, Fleet Roster, Forge, and Calibrate pages.

server/web/src/main.tsx

@@ -3,6 +3,7 @@ import ReactDOM from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
 import App from './App';
 import './styles/global.css';
+import './styles/steampunk-theme.css';
 
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>