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/pages/BuilderPage.tsx

@@ -141,13 +141,17 @@ export default function BuilderPage() {
   });
 
   return (
-    <div className="page fade-in">
-      <div className="page-header">
-        <h1>Miner Builder</h1>
+    <div className="page fade-in command-deck">
+      <header className="deck-hero">
+        <div className="deck-hero-text">
+          <p className="deck-eyebrow font-tech">INSTALLER FORGE</p>
+          <h1>The Forge</h1>
+          <p className="page-subtitle">Craft fused or standalone miners for your LAN fleet.</p>
+        </div>
         <button className="btn btn-outline" onClick={loadRecentBuilds}>
           Recent Builds
         </button>
-      </div>
+      </header>
 
       <div className="builder-layout builder-layout-wide">
         <div className="card cheat-sheet-panel">