fix(routing): restore middleware.ts to fix next-intl 404s and resolve testing host poisoning

.env

@@ -25,3 +25,13 @@ MAIL_RECIPIENTS=marc@cablecreations.de,info@klz-cables.com
 PAYLOAD_DB_NAME=payload
 PAYLOAD_DB_USER=payload
 PAYLOAD_DB_PASSWORD=120in09oenaoinsd9iaidon
+
+# ────────────────────────────────────────────────────────────────────────────
+# Hetzner S3 Object Storage
+# ────────────────────────────────────────────────────────────────────────────
+S3_ENDPOINT=https://fsn1.your-objectstorage.com
+S3_ACCESS_KEY=ROB3MSWMEIGRL7N94ZKS
+S3_SECRET_KEY=9QJV3NE8xeLxhyufhNU7lsUB0RffJxPhGuEuFSH3
+S3_BUCKET=mintel
+S3_REGION=fsn1
+S3_PREFIX=klz-cables

middleware.ts

@@ -45,8 +45,10 @@ export default async function middleware(request: NextRequest) {
   if (internalHosts.includes(urlObj.hostname)) {
     const proto = headers.get('x-forwarded-proto') || 'https';
     // Prioritize x-forwarded-host (passed by Traefik) over the local Host header
-    const hostHeader =
-      headers.get('x-forwarded-host') || headers.get('host') || 'testing.klz-cables.com';
+    const fallbackHost = process.env.NEXT_PUBLIC_BASE_URL
+      ? new URL(process.env.NEXT_PUBLIC_BASE_URL).host
+      : 'klz-cables.com';
+    const hostHeader = headers.get('x-forwarded-host') || headers.get('host') || fallbackHost;
 
     urlObj.protocol = proto;