Aggiunge il wordmark NexStudio con O quantum nell'header.

Co-authored-by: Cursor <cursoragent@cursor.com>

public/logos/nexstudio.svg

@@ -0,0 +1,28 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 140" fill="none" role="img" aria-label="NexStudio">
+  <!-- Wordmark allineato al render di riferimento: Nex (grigio) + Studi (viola) + O quantum -->
+  <g transform="translate(12, 8)">
+    <text
+      x="0"
+      y="102"
+      font-family="system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif"
+      font-weight="600"
+      font-size="100"
+      letter-spacing="-0.03em"
+      fill="#E6E6E6"
+    >Nex</text>
+    <text
+      x="178"
+      y="102"
+      font-family="system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif"
+      font-weight="500"
+      font-size="100"
+      letter-spacing="-0.03em"
+      fill="#B380FF"
+    >Studi</text>
+    <!-- O = anello + nucleo, integrata come lettera finale -->
+    <g transform="translate(448, 52)">
+      <circle cx="40" cy="22" r="34" fill="none" stroke="#B380FF" stroke-width="14" />
+      <circle cx="40" cy="22" r="9" fill="#B380FF" />
+    </g>
+  </g>
+</svg>