chore: purge all rocket.new references from source

- Replace img.rocket.new mock URLs in authors/[slug] + FeaturedBento
  with /assets/images/article-placeholder.svg (live DB data drives
  these pages now; the static maps are fallback only).
- Replace broadcastb5322.builtwithrocket.new with broadcastbeat.com
  in admin API routes, news detail, forum layout, and the 4 Supabase
  edge functions that build outbound email links.
- Swap rocket-hosted JSON-LD logo URL in root layout for the local
  /assets/images/logo.png we already ship.
- Drop img.rocket.new from the Next.js image-hosts allowlist;
  add supabase.onsethost.com so storage proxy URLs can render.

The DB has had zero rocket.new image refs for weeks; this finishes
the job in the codebase so no page on broadcastbeat.com can render
a rocket-hosted asset anymore.

src/app/home-page/components/FeaturedBento.tsx

@@ -47,77 +47,77 @@ const rotatingStories = [
   {
     title: "Telestream Expands Its Cloud Services with the Introduction of UP",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_11ff3d2ff-1773287949660.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Cloud services infrastructure for broadcast production environments",
     slug: "telestream-expands-cloud-services-up",
   },
   {
     title: "Operative Launches AOS Configuration for Digital-First Monetization",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_1805d1575-1773287951103.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Digital monetization analytics dashboard for broadcast advertising",
     slug: "operative-launches-aos-configuration",
   },
   {
     title: "Calrec Redefines Broadcast Workflows at NAB 2026 with its Most Powerful Audio Lineup Yet",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_10468e182-1773287953747.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Calrec audio mixing console for broadcast production at NAB 2026",
     slug: "calrec-redefines-broadcast-workflows-nab-2026",
   },
   {
     title: "Ease Live Powers Interactive Premier Padel Experiences on Red Bull TV as Viewership Surges 30%",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_1747232a3-1773287951222.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Interactive sports broadcast experience on streaming platform",
     slug: "ease-live-premier-padel-red-bull-tv",
   },
   {
     title: "From Metadata to Meaning: Why Semantic Intelligence Is Media\'s Next Competitive Advantage",
     category: "FEATURED",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_1c523ae5f-1773287954372.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Media metadata intelligence and content analytics visualization",
     slug: "from-metadata-to-meaning-semantic-intelligence",
   },
   {
     title: "Mediagenix Title Management Accelerates Content Monetization Through Advanced Semantic Intelligence",
     category: "POST PRODUCTION",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_19f6e3fe6-1769744394519.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Content management system for media title management and monetization",
     slug: "mediagenix-title-management",
   },
   {
     title: "Emergent Launches Fusion: The \'Interactive Anything\' Platform Transforming Data-Driven Storytelling",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_188669b2b-1773287951738.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Interactive data storytelling platform for broadcast and enterprise use",
     slug: "emergent-launches-fusion-platform",
   },
   {
     title: "Matrox Video Enables the Next Era of Software-Defined Media Production at NAB 2026",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_17266f6cf-1773287953058.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Matrox video production hardware and software at NAB 2026 exhibition",
     slug: "matrox-video-software-defined-nab-2026",
   },
   {
     title: "Video is King: 2026 Iconik Media Stats Report Finds Video Consumes 64% of Storage Needs",
     category: "FEATURED",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_140568f68-1773287953452.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Video storage statistics and media asset management data visualization",
     slug: "video-is-king-2026-iconik-media-stats",
   },
   {
     title: "QuickLink\'s Latest StudioEdge Models to Make North American Debut at NAB 2026",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_19c4ba922-1773287953682.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "QuickLink StudioEdge broadcast production equipment at NAB exhibition",
     slug: "quicklink-studioedge-nab-2026",
   },
   {
     title: "Utah Scientific Expands Technology Partner Program With Integrations From Audinate, Bitfocus, and Skaarhoj",
     category: "BROADCAST",
-    image: "https://img.rocket.new/generatedImages/rocket_gen_img_1ea12f02f-1768375990494.png",
+    image: "/assets/images/article-placeholder.svg",
     alt: "Broadcast routing and control system technology partner integration",
     slug: "utah-scientific-partner-program",
   },