Add dynamic footer badge marquee with admin management.

Store badges in Postgres, expose public/admin APIs, render an infinite footer slider, and ship /admin for paste-embed CRUD.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/api/badges/route.ts

@@ -0,0 +1,24 @@
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/db";
+
+/** Public: active footer badges for the landing marquee. */
+export async function GET() {
+  const badges = await prisma.footerBadge.findMany({
+    where: { isActive: true },
+    orderBy: [{ sortOrder: "asc" }, { createdAt: "asc" }],
+    select: {
+      id: true,
+      name: true,
+      embedHtml: true,
+      imageUrl: true,
+      linkUrl: true,
+      sortOrder: true,
+    },
+  });
+
+  return NextResponse.json({ badges }, {
+    headers: {
+      "Cache-Control": "public, s-maxage=60, stale-while-revalidate=300",
+    },
+  });
+}