AV Beat rebrand: theme swap (orange #E67E22 / near-black), logo, schema default → avb

- public/assets/images/logo.png + public/brand/logo*.png replaced with the 1320x310 AV Beat logo
- public/assets/logos/avbeat.png added as the canonical source
- tailwind.config.js + src/styles/tailwind.css + src/styles/redesign-tokens.css palette swapped (primary #0F0E0E, secondary #1D1A1A, accent #E67E22 orange, foreground #F0EBE6 warm white)
- Layout / robots / sitemap / home-page / about / contact / press-kit / team / global-error metadata switched to AV Beat (Where AV Meets IT)
- Bulk replaced 'Broadcast Beat'/'BroadcastBeat.com'/'broadcastbeat.com' across user-facing news/forum/marketplace/advertise/search/newsletter pages
- src/lib/supabase/{admin,server,client} now default to schema 'avb' (was 'bb') — overridable via NEXT_PUBLIC_SUPABASE_SCHEMA
- package.json renamed to 'avbeat'
- Single d60701 reference in about/team swapped to E67E22

Design-only replica — no article content migrated.

src/components/SponsorLogoStrip.tsx

@@ -70,11 +70,11 @@ export default async function SponsorLogoStrip() {
   return (
     <section className="max-w-container mx-auto px-4 py-6 border-t border-b border-[#1a1a1a]" aria-label="Content partners">
       <div className="flex items-center gap-4 mb-3">
-        <span className="text-[10px] uppercase tracking-widest text-[#3b82f6] font-bold">
+        <span className="text-[10px] uppercase tracking-widest text-[#E67E22] font-bold">
           Content Partners
         </span>
         <div className="flex-1 h-px bg-[#1a1a1a]" />
-        <Link href="/advertise" className="text-[10px] text-[#666] hover:text-[#3b82f6] font-mono">
+        <Link href="/advertise" className="text-[10px] text-[#666] hover:text-[#E67E22] font-mono">
           Advertise →
         </Link>
       </div>