homepage: auto-promote advertiser stories + premium slots in Industry News

Three-tier sort on the Industry News feed:
1. Premium — articles pinned via adv.featured_story_slots (paid slots).
   Sorted by position ascending. Highlighted with an amber left-border
   gradient + ★ Featured ribbon.
2. Advertiser — articles whose title contains the company name of a
   current active banner advertiser on this property, AND were published
   in the last 48 hours. Highlighted with a blue left-border gradient
   + ◆ Advertiser ribbon. Multiple matches ordered by publish date.
3. General — everything else, newest first.

After 48h, advertiser stories naturally drop back into the general
tier. Premium slots fall off when their ends_at passes.

Detection is title-only with case-insensitive word-boundary match; the
longest matching company name wins so "Sony Pictures" beats "Sony"
when both advertise. Backed by the new adv.active_advertisers_by_
property view.

createAdminClient() now accepts an optional schema arg so we can hit
adv from BB without juggling clients.

API revalidate dropped 300 → 60s so the feed reflects campaign flips
within a minute.

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

@@ -23,6 +23,9 @@ interface ArticleItem {
   alt: string;
   source: "live" | "imported";
   externalUrl?: string;
+  promoted_kind?: "premium" | "client" | null;
+  promoted_advertiser?: string | null;
+  promoted_until?: string | null;
 }
 
 
@@ -179,8 +182,19 @@ export default function ArticleFeed() {
     return matchCat && matchSource && matchSearch && matchAuthor && matchDate;
   });
 
-  // Sort filtered articles based on sortOrder
+  // Sort filtered articles based on sortOrder. For every order we honor
+  // the promoted-tier hierarchy first (premium > advertiser > general) so
+  // paid placements and advertiser news always lead. Within each tier the
+  // user's chosen sort applies.
+  function promotedTier(a: ArticleItem): number {
+    if (a.promoted_kind === "premium") return 0;
+    if (a.promoted_kind === "client") return 1;
+    return 2;
+  }
   const sortedFiltered = [...filtered].sort((a, b) => {
+    const ta = promotedTier(a);
+    const tb = promotedTier(b);
+    if (ta !== tb) return ta - tb;
     if (sortOrder === "recent") {
       const da = parseArticleDate(a.date);
       const db = parseArticleDate(b.date);
@@ -566,9 +580,15 @@ export default function ArticleFeed() {
                   ? mobileInfeedAds[Math.floor((i + 1) / MOBILE_AD_EVERY_N - 1) % mobileInfeedAds.length]
                   : null;
 
+                const promoted = article?.promoted_kind;
+                const promotedClass = promoted === 'premium'
+                  ? 'border-l-4 border-amber-400 bg-gradient-to-r from-amber-500/10 to-transparent pl-3 -ml-2 mr-0'
+                  : promoted === 'client'
+                  ? 'border-l-4 border-[#3b82f6] bg-gradient-to-r from-[#3b82f6]/8 to-transparent pl-3 -ml-2 mr-0'
+                  : '';
                 return (
                   <Fragment key={`feed-${i}`}>
-                  <article className="article-card flex gap-3 md:gap-4 py-4 md:py-5 group cursor-pointer rounded-sm px-2 -mx-2">
+                  <article className={`article-card flex gap-3 md:gap-4 py-4 md:py-5 group cursor-pointer rounded-sm px-2 -mx-2 ${promotedClass}`}>
                     <Link
                       href={articleHref}
                       {...linkProps}
@@ -587,6 +607,16 @@ export default function ArticleFeed() {
                     </Link>
                     <div className="flex-1 min-w-0">
                       <div className="flex items-center gap-1.5 md:gap-2 mb-1 md:mb-1.5 flex-wrap">
+                        {promoted === 'premium' && (
+                          <span className="font-body text-[9px] font-bold text-amber-300 bg-amber-500/20 border border-amber-500/40 px-1.5 py-0.5 rounded uppercase tracking-widest">
+                            ★ Featured
+                          </span>
+                        )}
+                        {promoted === 'client' && (
+                          <span className="font-body text-[9px] font-bold text-[#7aa7d4] bg-[#3b82f6]/15 border border-[#3b82f6]/40 px-1.5 py-0.5 rounded uppercase tracking-widest" title={article?.promoted_advertiser ? `Advertiser coverage: ${article.promoted_advertiser}` : 'Advertiser coverage'}>
+                            ◆ Advertiser
+                          </span>
+                        )}
                         {article?.category && article.category.toLowerCase() !== "legacy" && (
                           <span className="font-body text-[10px] font-bold text-[#3b82f6] uppercase tracking-wide">
                             {article.category}