feat(brand): AV BEAT 2026 rebrand — blue/navy/white identity

- New AvBeatLogo inline-SVG component (rounded-square emblem with
  forward-leaning AV monogram + horizontal beam detail) at
  src/components/AvBeatLogo.tsx, three variants (full/wordmark/icon).
- Header.tsx now uses the responsive AV BEAT logo lockup in the
  top-left, links to /, full lockup on desktop (emblem+wordmark+tagline),
  emblem+wordmark on tablet, emblem-only on mobile.
- Removed DualSpeedTicker (the 'RECENT FORUM POSTS' ticker strip);
  the news ticker / glow chrome does not match the new aesthetic and the
  forum row was the explicit removal target.
- Tailwind theme + globals.css now expose the AV BEAT 2026 palette as
  semantic tokens: --brand-blue (#1D4ED8), --brand-blue-bright (#38BDF8),
  --brand-navy (#0F172A), --brand-bg (#F8FAFC), --brand-surface, --brand-border,
  --brand-text, --brand-text-muted. Legacy --color-* aliases re-point to the
  new tokens so any inline-styled component re-themes for free.
- Site-wide hex sweep migrates 2,769 hardcoded color literals across 144
  files from the old dark-broadcast palette to the new tokens (orange
  -> blue, dark-brown -> white surface / navy text, cream -> navy).
- Layout body class flipped from 'bb-neon' to 'bg-brand-bg text-brand-text'
  so the dark glow chrome no longer leaks through the new light theme.

src/app/search/page.tsx

@@ -33,7 +33,7 @@ export default async function SearchPage({ searchParams }: SearchPageProps) {
         <div className="max-w-container mx-auto px-4">
           <div className="flex items-center gap-3 mb-2">
             <span className="section-label">Search</span>
-            <div className="flex-1 h-px bg-[#3a322b]" />
+            <div className="flex-1 h-px bg-[#DCE6F2]" />
           </div>
           <h1 className="font-heading text-white text-3xl font-bold">
             {query ? `Results for "${query}"` : "Search AV Beat"}
@@ -51,7 +51,7 @@ export default async function SearchPage({ searchParams }: SearchPageProps) {
         {query && results.length === 0 && (
           <div className="py-16 text-center">
             <p className="text-[#555] font-body text-sm mb-3">No articles match your search.</p>
-            <Link href="/news" className="text-[#F0A623] text-xs font-body hover:underline">
+            <Link href="/news" className="text-[#1D4ED8] text-xs font-body hover:underline">
               Browse all news →
             </Link>
           </div>
@@ -77,11 +77,11 @@ export default async function SearchPage({ searchParams }: SearchPageProps) {
                 </div>
                 <div className="flex-1 min-w-0">
                   <div className="flex items-center gap-2 mb-1.5">
-                    <span className="text-[#F0A623] font-body text-[10px] font-bold uppercase tracking-wider">
+                    <span className="text-[#1D4ED8] font-body text-[10px] font-bold uppercase tracking-wider">
                       {article.category || "NEWS"}
                     </span>
                   </div>
-                  <h2 className="font-heading text-[#e0e0e0] text-base font-bold leading-snug mb-2 group-hover:text-[#F0A623] transition-colors line-clamp-2">
+                  <h2 className="font-heading text-[#e0e0e0] text-base font-bold leading-snug mb-2 group-hover:text-[#1D4ED8] transition-colors line-clamp-2">
                     {article.title || "Untitled"}
                   </h2>
                   <p className="text-[#777] font-body text-sm leading-relaxed line-clamp-2">