chore: stabilize pipeline and harden infrastructure

- Harden E2E smoke tests with increased timeouts and German keyword detection
- Implement defensive body parsing in analytics relay to prevent crashes
- Refine middleware to bypass i18n logic for Server Actions
- Fix date formatting consistency and JsonLd validation

components/JsonLd.tsx

@@ -7,16 +7,14 @@ interface JsonLdProps {
 
 export default function JsonLd({ id, data }: JsonLdProps) {
   // If data is provided, use it. Otherwise, use the default Organization + WebSite schema.
-  const schemaData = data || [
+  const rawData = data || [
     {
       '@context': 'https://schema.org',
       '@type': 'Organization',
       name: 'KLZ Cables',
       url: 'https://klz-cables.com',
       logo: 'https://klz-cables.com/logo-blue.svg',
-      sameAs: [
-        'https://www.linkedin.com/company/klz-cables',
-      ],
+      sameAs: ['https://www.linkedin.com/company/klz-cables'],
       description: 'Premium Cable Solutions for Renewable Energy and Infrastructure.',
       address: {
         '@type': 'PostalAddress',
@@ -36,15 +34,32 @@ export default function JsonLd({ id, data }: JsonLdProps) {
         },
         'query-input': 'required name=search_term_string',
       },
-    }
+    },
   ];
 
+  // Harden schema items: Ensure each item is an object and has @context
+  const schemaData = (Array.isArray(rawData) ? rawData : [rawData])
+    .filter((item): item is WithContext<Thing> => {
+      // Basic sanity check: must be an object and not null
+      return typeof item === 'object' && item !== null;
+    })
+    .map((item) => {
+      // Ensure @context is present and correctly typed for consumer libraries
+      if (!item['@context']) {
+        return {
+          ...item,
+          '@context': 'https://schema.org',
+        };
+      }
+      return item;
+    });
+
   return (
     <script
       id={id}
       type="application/ld+json"
       dangerouslySetInnerHTML={{
-        __html: JSON.stringify(schemaData),
+        __html: JSON.stringify(schemaData.length === 1 ? schemaData[0] : schemaData),
       }}
     />
   );

components/home/RecentPosts.tsx

@@ -74,11 +74,14 @@ export default async function RecentPosts({ locale, data }: RecentPostsProps) {
                       suppressHydrationWarning
                       className="px-3 py-1 text-white/80 text-[10px] md:text-xs font-bold uppercase tracking-widest border border-white/20 rounded-full bg-white/10 backdrop-blur-md"
                     >
-                      {new Date(post.frontmatter.date).toLocaleDateString(locale || 'de', {
-                        year: 'numeric',
-                        month: 'short',
-                        day: 'numeric',
-                      })}
+                      {new Date(post.frontmatter.date).toLocaleDateString(
+                        locale === 'en' ? 'en-US' : 'de-DE',
+                        {
+                          year: 'numeric',
+                          month: 'short',
+                          day: 'numeric',
+                        },
+                      )}
                     </time>
                     {(new Date(post.frontmatter.date) > new Date() ||
                       post.frontmatter.public === false) && (