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/app/home-page/page.tsx

@@ -9,6 +9,8 @@ import SpotlightCarousel from "./components/SpotlightCarousel";
 import ArticleFeed from "./components/ArticleFeed";
 import ScrollRevealSection from "@/components/ScrollRevealSection";
 import NewsletterSignup from "./components/NewsletterSignup";
+import SponsorLogoStrip from "@/components/SponsorLogoStrip";
+import CompanyMentionsHover from "@/components/CompanyMentionsHover";
 
 export const metadata: Metadata = {
   title: 'Broadcast Beat — Broadcast Engineering News & Insights',
@@ -166,8 +168,16 @@ export default function HomePage() {
         <NewsletterSignup />
       </ScrollRevealSection>
 
+      {/* Coverage Partners logo strip — current banner advertisers */}
+      <ScrollRevealSection className="section-enter section-enter-5">
+        <Suspense fallback={null}>
+          <SponsorLogoStrip />
+        </Suspense>
+      </ScrollRevealSection>
+
       {/* Footer */}
       <Footer />
+      <CompanyMentionsHover />
     </div>
   );
 }