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/app/marketplace/page.tsx

@@ -3,7 +3,7 @@ import Header from '@/components/Header';
 import Footer from '@/components/Footer';
 
 export const metadata = {
-  title: 'Production Crew & Vendor Marketplace | Broadcast Beat',
+  title: 'Production Crew & Vendor Marketplace | AV Beat',
   description:
     'Find broadcast and production crew, vendors, jobs, and gig opportunities. The professional marketplace built for the broadcast industry.',
 };