swarm-ui: extend neon glow to the swarm brand name

frontend/packages/swarm-ui/src/shell/Shell.tsx

@@ -280,7 +280,18 @@ export function Shell({ children }: { children: ComponentChildren }) {
   return (
     <div class="shell">
       <header class="shell-header">
-        <span class="shell-brand" style={{ color: navAccent }}>
+        <span
+          class="shell-brand"
+          // Same glow recipe as the active nav tab / panel titles, riding
+          // `navAccent` — the same value `color` already uses here — so
+          // the brand's glow tracks the identical hop sequence as its own
+          // text colour instead of introducing a second, disagreeing
+          // accent source.
+          style={{
+            color: navAccent,
+            textShadow: `0 0 8px color-mix(in srgb, ${navAccent} 45%, transparent)`,
+          }}
+        >
           {brand}
         </span>
         <nav class="shell-nav" ref={navRef}>