fix(perf): hardcode Next.js optimized image URLs into MDX for massive LCP boost

content/de/home.mdx

@@ -88,7 +88,7 @@ description: "Die E-TIB GmbH ist Ihr zuverlässiger Partner für komplexe Kabelt
       {/* Right Column: Imagery & Mission */}
       <div className="lg:col-span-7 relative">
         <div className="aspect-[4/3] md:aspect-[16/9] lg:aspect-[4/3] rounded-3xl overflow-hidden shadow-2xl relative border border-neutral-200/50">
-          <img src="/assets/photos/Etib_E-tib_Tiefbau_Guben_Netzanbindung_Energie-100.jpg" alt="E-TIB im Einsatz" className="w-full h-full object-cover" loading="lazy" decoding="async" />
+          <img src="/_next/image?url=%2Fassets%2Fphotos%2FEtib_E-tib_Tiefbau_Guben_Netzanbindung_Energie-100.jpg&w=1920&q=75" alt="E-TIB im Einsatz" className="w-full h-full object-cover" loading="lazy" decoding="async" />
           <div className="absolute inset-0 bg-gradient-to-t from-neutral-dark/95 via-neutral-dark/40 to-transparent"></div>
           
           <div className="absolute bottom-0 left-0 w-full p-8 md:p-12">

content/en/home.mdx

@@ -88,7 +88,7 @@ description: "E-TIB GmbH is your reliable partner for complex cable routes, hori
       {/* Right Column: Imagery & Mission */}
       <div className="lg:col-span-7 relative">
         <div className="aspect-[4/3] md:aspect-[16/9] lg:aspect-[4/3] rounded-3xl overflow-hidden shadow-2xl relative border border-neutral-200/50">
-          <img src="/assets/photos/Etib_E-tib_Tiefbau_Guben_Netzanbindung_Energie-100.jpg" alt="E-TIB in action" className="w-full h-full object-cover" loading="lazy" decoding="async" />
+          <img src="/_next/image?url=%2Fassets%2Fphotos%2FEtib_E-tib_Tiefbau_Guben_Netzanbindung_Energie-100.jpg&w=1920&q=75" alt="E-TIB in action" className="w-full h-full object-cover" loading="lazy" decoding="async" />
           <div className="absolute inset-0 bg-gradient-to-t from-neutral-dark/95 via-neutral-dark/40 to-transparent"></div>
           
           <div className="absolute bottom-0 left-0 w-full p-8 md:p-12">