fix(seo): expand areaServed schema to match confirmed GBP service area

Owner confirmed real coverage in Marbella, Benalmádena, Fuengirola, and
Torremolinos in addition to Málaga city/province -- these are already
set as the service area on Google Business Profile. Updated the JSON-LD
areaServed list and llms.txt to match, so NAP/area signals are
consistent between the site and GBP.

public/llms.txt

@@ -3,7 +3,7 @@ MNQ Catering y Evento
 - Canonical domain: https://www.mnqeventos.es
 - Business type: Premium catering service
 - Address: Calle Borde Alegre, 1, 29014, Málaga, España
-- Area served: Málaga (city) and Provincia de Málaga
+- Area served: Málaga, Marbella, Benalmádena, Fuengirola, Torremolinos, Provincia de Málaga, Costa del Sol
 - Services: Bodas, eventos corporativos, reuniones familiares
 - Primary contact channels: WhatsApp (+34 678 17 15 13), phone (+34 678 17 15 13)
 - Key pages: /, /nosotros, /bodas-reales, /corporativo-business, /reuniones-familiares, /contacto

src/layouts/MainLayout.astro

@@ -69,16 +69,15 @@ const baseStructuredData = {
     addressRegion: 'Málaga',
     addressCountry: 'ES',
   },
-  // Kept conservative to the confirmed service area: city + province of Málaga.
+  // Matches the confirmed service area set on Google Business Profile.
   areaServed: [
-    {
-      '@type': 'City',
-      name: 'Málaga',
-    },
-    {
-      '@type': 'AdministrativeArea',
-      name: 'Provincia de Málaga',
-    },
+    { '@type': 'City', name: 'Málaga' },
+    { '@type': 'City', name: 'Marbella' },
+    { '@type': 'City', name: 'Benalmádena' },
+    { '@type': 'City', name: 'Fuengirola' },
+    { '@type': 'City', name: 'Torremolinos' },
+    { '@type': 'AdministrativeArea', name: 'Provincia de Málaga' },
+    { '@type': 'Place', name: 'Costa del Sol' },
   ],
   contactPoint: {
     '@type': 'ContactPoint',