fix: FluxAI image paths now include the node slug

The two AI tool cards rendered inside the chat — CaseStudyViewer (the
"Show me proven installations" card) and EquipmentConfigurator (the
"Show equipment specs" card) — were composing image URLs without the
node-slug segment:

  /cases/<filename>            ← what the cards were emitting (404)
  /cases/<nodeSlug>/<filename> ← what the public site actually serves

Result: cover images and gallery thumbnails inside chat cards came back
as broken-image icons, while the same files rendered fine on
/en/applications/<slug> and inside the CaseStudyModal (those
already used the correct path).

Fix: both components now derive the slug from data.title with the same
nodeToSlug() the public pages use, and prefix it on every /cases/
URL — cover and gallery thumbnails alike.

CHANGES (2 files)
- src/components/ai/CaseStudyViewer.tsx
  - Added local nodeToSlug() helper (mirrors ApplicationClient + assetFolders)
  - coverSrc:        /cases/${nodeSlug}/${mediaFileName}
  - gallery image:   /cases/${nodeSlug}/${img}

- src/components/ai/EquipmentConfigurator.tsx
  - Added local nodeToSlug() helper
  - coverSrc:        /cases/${nodeSlug}/${mediaFileName}

No backend / API / DB changes. Pure client-side path correction.

src/components/ai/CaseStudyViewer.tsx

@@ -5,6 +5,13 @@ import { MapPin, Factory, Zap, Clock, ChevronDown, ArrowRight, Globe2, Image as
 import { useState } from "react";
 import Image from "next/image";
 
+// Slugify the node title the same way ApplicationClient + assetFolders do —
+// keeps image paths consistent with the on-disk layout
+// (/cases/<nodeSlug>/<file>).
+function nodeToSlug(title: string): string {
+  return title.toLowerCase().trim().replace(/[^\w\s-]/g, "").replace(/[\s_-]+/g, "-").replace(/^-+|-+$/g, "");
+}
+
 // ── Interface matches GlobalNode shape from Prisma ──
 interface CaseStudyData {
   found: boolean;
@@ -50,7 +57,8 @@ export default function CaseStudyViewer({ data }: { data: CaseStudyData }) {
   if (!data.found) return null;
 
   const accent = ACCENTS[data.industry] || ACCENTS.textile;
-  const coverSrc = data.mediaFileName ? `/cases/${data.mediaFileName}` : null;
+  const nodeSlug = nodeToSlug(data.title);
+  const coverSrc = data.mediaFileName ? `/cases/${nodeSlug}/${data.mediaFileName}` : null;
   const appLabel = data.application.replace(/-/g, " ").replace(/\b\w/g, c => c.toUpperCase());
 
   return (
@@ -192,7 +200,7 @@ export default function CaseStudyViewer({ data }: { data: CaseStudyData }) {
                       <div className="grid grid-cols-3 gap-1.5 rounded-lg overflow-hidden">
                         {data.gallery.slice(0, 6).map((img, i) => (
                           <div key={i} className="relative aspect-square bg-[#F5F5F7] dark:bg-[#1D1D1F] rounded-md overflow-hidden">
-                            <Image src={`/cases/${img}`} alt={`Gallery ${i + 1}`} fill className="object-cover" sizes="120px" />
+                            <Image src={`/cases/${nodeSlug}/${img}`} alt={`Gallery ${i + 1}`} fill className="object-cover" sizes="120px" />
                           </div>
                         ))}
                       </div>

src/components/ai/EquipmentConfigurator.tsx

@@ -5,6 +5,12 @@ import { Cpu, ArrowRight, Settings2, ChevronDown, MapPin, Factory, Zap, Box } fr
 import { useState } from "react";
 import Image from "next/image";
 
+// Same slugger as the public-facing pages so cover images resolve to the
+// /cases/<nodeSlug>/<file> layout that's actually on disk.
+function nodeToSlug(title: string): string {
+  return title.toLowerCase().trim().replace(/[^\w\s-]/g, "").replace(/[\s_-]+/g, "-").replace(/^-+|-+$/g, "");
+}
+
 // ── Interface matches GlobalNode + specificDatasheetJson from Prisma ──
 interface EquipmentData {
   found: boolean;
@@ -39,7 +45,8 @@ export default function EquipmentConfigurator({ data }: { data: EquipmentData })
 
   if (!data.found) return null;
 
-  const coverSrc = data.mediaFileName ? `/cases/${data.mediaFileName}` : null;
+  const nodeSlug = nodeToSlug(data.title);
+  const coverSrc = data.mediaFileName ? `/cases/${nodeSlug}/${data.mediaFileName}` : null;
   const appLabel = data.application.replace(/-/g, " ").replace(/\b\w/g, c => c.toUpperCase());
 
   // Find key specs for header pills (power, frequency, model — from datasheet)