refactor: Replace hardcoded domain with SITE_URL constant across metadata and schema definitions for improved configurability.

lib/schema.ts

@@ -1,5 +1,6 @@
+import { config } from './config';
 
-export const SITE_URL = 'https://klz-cables.com';
+export const SITE_URL = config.baseUrl || 'https://klz-cables.com';
 export const LOGO_URL = `${SITE_URL}/logo.png`;
 
 export const getOrganizationSchema = () => ({
@@ -8,16 +9,14 @@ export const getOrganizationSchema = () => ({
   name: 'KLZ Cables',
   url: SITE_URL,
   logo: LOGO_URL,
-  sameAs: [
-    'https://www.linkedin.com/company/klz-cables',
-  ],
+  sameAs: ['https://www.linkedin.com/company/klz-cables'],
   contactPoint: {
     '@type': 'ContactPoint' as const,
     telephone: '+49-881-92537298',
     contactType: 'customer service' as const,
     email: 'info@klz-cables.com',
-    availableLanguage: ['German', 'English']
-  }
+    availableLanguage: ['German', 'English'],
+  },
 });
 
 export const getBreadcrumbSchema = (items: { name: string; item: string }[]) => ({