forum: rebrand to The Crew Lounge + scaffold Credits system

UI (targeted edits, no identifier renames):
- forum/layout.tsx: metadata title/OG/twitter/schema.org + breadcrumb name → The Crew Lounge
- forum/page.tsx: H1 + intro copy → The Crew Lounge (swapped 💬 for /logos/crew-lounge-logo.svg)

New assets:
- public/logos/crew-lounge-logo.svg — film-reel + CREW logo, #5B7C8D → #8FB0C3 gradient
- src/components/crew-lounge/CreditsDisplay.tsx — per-category totals + Crew Leader badge
- src/components/crew-lounge/CrewLoungeLogo.tsx — wrapper component

Database (4 new tables on supabase01, all TIMESTAMPTZ, IF NOT EXISTS guards):
- bb.user_credits — per-user/per-category daily credit ledger
- bb.user_credits_totals — cached leaderboard totals
- bb.crew_leader_badges — awarded at 10+ credits/category
- bb.credits_monthly_snapshot — monthly leaderboard captures

Docs:
- docs/guides/FORUM_SETUP_COMPLETE.md — replication guide
- docs/guides/FORUM_SETUP_CHECKLIST.md — per-property checklist

Forum tables (bb.forum_*) and TypeScript identifiers untouched.
Routes (/forum) unchanged — display-name rebrand only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/forum/page.tsx

@@ -262,11 +262,11 @@ export default function ForumIndexPage() {
         <div className="bg-[#1a2535] border-b border-[#2a3a50]">
           <div className="max-w-container mx-auto px-4 py-10">
             <div className="flex items-center gap-3 mb-2">
-              <span className="text-2xl">💬</span>
-              <h1 className="text-3xl font-heading font-bold text-white">Industry Forum</h1>
+              <img src="/logos/crew-lounge-logo.svg" alt="The Crew Lounge" className="w-8 h-8" />
+              <h1 className="text-3xl font-heading font-bold text-white">The Crew Lounge</h1>
             </div>
             <p className="text-[#aab4c4] font-body text-base max-w-2xl">
-              Connect with broadcast, motion picture and post production professionals worldwide. Ask questions, share expertise, and discuss the technology shaping the industry.
+              The Crew Lounge: connect with broadcast, motion picture and post production professionals worldwide. Ask questions, share expertise, and discuss the technology shaping the industry.
             </p>
           </div>
         </div>