fixes Network CoverImage3

src/components/sections/GlobalOperations.tsx

@@ -13,6 +13,10 @@ import { useTranslations } from "next-intl";
 const RADIUS = 2;
 const CAM_FOV = 50;
 
+function nodeToSlug(title: string): string {
+  return title.toLowerCase().trim().replace(/[^\w\s-]/g, '').replace(/[\s_-]+/g, '-').replace(/^-+|-+$/g, '');
+}
+
 function latLonToVec3(lat: number, lon: number, r: number) {
   const phi = (90 - lat) * (Math.PI / 180);
   const theta = (lon + 180) * (Math.PI / 180);
@@ -436,6 +440,7 @@ function NodeCard({ node, isDark, onClose, onViewCase }: {
 }) {
   const isEvent = node.nodeType === "event";
   const isHQ    = node.nodeType === "hq";
+  const nodeSlug = nodeToSlug(node.title);
   const accent  = isHQ ? (isDark ? "#FFFFFF" : "#111111")
     : isEvent   ? (isDark ? "#E879F9" : "#9333EA")
     : (isDark   ? "#38BDF8" : "#0066CC");
@@ -460,7 +465,7 @@ function NodeCard({ node, isDark, onClose, onViewCase }: {
       <div className="relative w-full rounded-t-2xl overflow-hidden" style={{ height: 148 }}>
         {node.mediaFileName ? (
           <>
-            <Image src={`/cases/${node.mediaFileName}`} alt={node.title} fill sizes="380px" className="object-cover object-center" />
+            <Image src={`/cases/${nodeSlug}/${node.mediaFileName}`} alt={node.title} fill sizes="380px" className="object-cover object-center" />
             <div className="absolute inset-0 pointer-events-none" style={{
               background: isDark
                 ? "linear-gradient(to bottom, transparent 35%, rgba(6,10,22,0.94) 100%)"