cross-link: forum auto-link, NAB hub, sponsor strip, recent stories

Feature 3 — forum auto-linking
  Thread + reply bodies in /forum/thread/[id] now wrap company-name
  mentions with /manufacturers/<slug> links via a new client-side
  LinkifyPlainText component. Loads the directory list once per page
  (module-level promise cache), regex-scans each body, preserves
  whitespace, caps at 10 links per body to avoid clutter.
  CompanyMentionsHover mounted on the page so the same preview card
  pops on hover.
  Adds /api/public/companies/list — minimal { name, slug } directory
  feed, cached 10min.

Feature 4 — /nab-2026 live coverage hub
  New page aggregating every directory company with exhibits_nab=true.
  Three sections:
    - Coverage Partners — active advertisers exhibiting at NAB, larger
      tiles with emerald Sponsor border
    - Latest from the show floor — last 60 days of articles with NAB
      in the title, cinematic grid
    - All NAB 2026 exhibitors — alphabetical, capped at 200 with link
      to full /manufacturers directory
  Every company tile carries data-company-slug for hover previews.

Feature 5b — Sponsor logo strip on homepage
  New SponsorLogoStrip server component renders just above the footer
  on the homepage, showing logos of every current banner advertiser
  with a directory entry + logo. Each links to the manufacturer
  profile with the hover-card slug attribute.

Feature 5c — Recent coverage on manufacturer profiles
  /manufacturers/[slug] now includes a grid of the 6 most recent
  articles matching the company name in the title, with thumbnails.
  Renames the existing manufacturer_id-linked block to "Press
  releases" since it's a separate data source.

src/components/SponsorLogoStrip.tsx

@@ -0,0 +1,89 @@
+import Link from "next/link";
+import { createAdminClient } from "@/lib/supabase/admin";
+
+type Sponsor = {
+  slug: string;
+  name: string;
+  logoUrl: string | null;
+};
+
+async function fetchSponsors(): Promise<Sponsor[]> {
+  try {
+    const adv = createAdminClient("adv");
+    const { data: ads } = await adv
+      .from("active_advertisers_by_property")
+      .select("company_name_lower")
+      .eq("property", "broadcastbeat");
+    const names = Array.from(new Set((ads || []).map((r: any) => String(r.company_name_lower))));
+    if (names.length === 0) return [];
+
+    const bb = createAdminClient();
+    const { data: dir } = await bb
+      .from("tracked_companies")
+      .select("slug, company_name, logo_url")
+      .eq("directory_visible", true)
+      .in("company_name", names.map((n) => n)); // case-sensitive — directory should match
+    // Some directory entries may have slightly different casing — fall back
+    // to a case-insensitive single-name lookup for anything missed.
+    const bySlug = new Map<string, Sponsor>();
+    for (const d of (dir || []) as any[]) {
+      bySlug.set(d.slug, { slug: d.slug, name: d.company_name, logoUrl: d.logo_url || null });
+    }
+    const matchedNames = new Set((dir || []).map((d: any) => String(d.company_name).toLowerCase()));
+    const missing = names.filter((n) => !matchedNames.has(n));
+    if (missing.length > 0) {
+      for (const n of missing) {
+        const { data: hit } = await bb
+          .from("tracked_companies")
+          .select("slug, company_name, logo_url")
+          .eq("directory_visible", true)
+          .ilike("company_name", n)
+          .limit(1)
+          .maybeSingle();
+        if (hit) bySlug.set(hit.slug, { slug: hit.slug, name: hit.company_name, logoUrl: hit.logo_url || null });
+      }
+    }
+
+    return Array.from(bySlug.values()).filter((s) => s.logoUrl); // only show those with a logo
+  } catch {
+    return [];
+  }
+}
+
+export default async function SponsorLogoStrip() {
+  const sponsors = await fetchSponsors();
+  if (sponsors.length === 0) return null;
+
+  return (
+    <section className="max-w-container mx-auto px-4 py-6 border-t border-b border-[#1a1a1a]" aria-label="Coverage partners">
+      <div className="flex items-center gap-4 mb-3">
+        <span className="text-[10px] uppercase tracking-widest text-[#3b82f6] font-bold">
+          Coverage Partners
+        </span>
+        <div className="flex-1 h-px bg-[#1a1a1a]" />
+        <Link href="/advertise" className="text-[10px] text-[#666] hover:text-[#3b82f6] font-mono">
+          Advertise →
+        </Link>
+      </div>
+      <div className="flex flex-wrap items-center justify-center gap-x-8 gap-y-4">
+        {sponsors.map((s) => (
+          <Link
+            key={s.slug}
+            href={`/manufacturers/${s.slug}`}
+            data-company-slug={s.slug}
+            className="block opacity-70 hover:opacity-100 transition-opacity"
+            title={s.name}
+          >
+            {/* eslint-disable-next-line @next/next/no-img-element */}
+            <img
+              src={s.logoUrl || ""}
+              alt={s.name}
+              className="h-10 md:h-12 w-auto object-contain max-w-[140px] bg-white p-1.5 rounded"
+              loading="lazy"
+            />
+          </Link>
+        ))}
+      </div>
+    </section>
+  );
+}