Phase 6C featured carousel + Phase 2 event tag chips

FeaturedCarouselServer (RSC) pulls 5 most recent featured=true rows from
bb.ai_rewritten_articles UNION bb.wp_imported_posts, renders into the
client FeaturedCarousel component: 4s auto-advance (pause on hover),
chevron + dot nav + NN/NN counter, [ID xxxx] / [CATEGORY] badges,
serif headline, lede, optional neural-summary box with corner brackets +
confidence + entity chips, byline with initials avatar. Replaces the
FeaturedBento on the homepage.

Seeded bb.wp_imported_posts.featured = TRUE on 5 recent posts so the
carousel renders out-of-the-box (Amagi, Riedel, LiveU BroadcastAsia,
Cobalt Best-of-Show, Leader MPTS).

Phase 2 UI:
  EventTagPicker (client) — chip multi-select reading bb.events,
                            writing to bb.article_events via
                            /api/admin/review-queue/[id]/events.
                            article_table=ai_rewritten for now;
                            future submission-form integration will
                            cover other tables.

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

src/app/admin/review-queue/[id]/page.tsx

@@ -1,6 +1,7 @@
 import Link from "next/link";
 import { notFound } from "next/navigation";
 import { createAdminClient } from "@/lib/supabase/admin";
+import EventTagPicker from './EventTagPicker';
 import ReviewActions from "./ReviewActions";
 
 export const dynamic = "force-dynamic";
@@ -56,6 +57,8 @@ export default async function ReviewDetailPage({ params }: { params: Promise<{ i
         <p className="mt-2 text-[#9ca3af]">{art.excerpt}</p>
       </header>
 
+      <EventTagPicker articleId={art.id} />
+      <div className="my-4" />
       <ReviewActions id={art.id} currentStatus={art.status} />
 
       <section className="mt-8 grid grid-cols-1 md:grid-cols-2 gap-8">