refactor: update homepage section order with cases section

src/app/(marketing)/page.tsx

@@ -22,6 +22,14 @@ const ProductsSection = dynamic(
   }
 );
 
+const CasesSection = dynamic(
+  () => import('@/components/sections/cases-section').then(mod => ({ default: mod.CasesSection })),
+  { 
+    loading: () => <SectionSkeleton />,
+    ssr: true 
+  }
+);
+
 const AboutSection = dynamic(
   () => import('@/components/sections/about-section').then(mod => ({ default: mod.AboutSection })),
   { 
@@ -53,6 +61,7 @@ export default function HomePage() {
       <HeroSection />
       <ServicesSection />
       <ProductsSection />
+      <CasesSection />
       <AboutSection />
       <NewsSection />
       <ContactSection />