perf: convert Hero to server component for faster LCP

- Hero now renders server-side, eliminating JS dependency for LCP text
- CMS messages fetched server-side instead of client useEffect
- Removes Hero from client JS bundle (~5KB less)
- LCP element (hero paragraph) now in initial HTML response
- Eliminates 2,380ms 'element rendering delay' reported by PSI

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

app/_ui/HomePage.tsx

@@ -41,7 +41,7 @@ export default function HomePage() {
       {/* Spacer to prevent navbar overlap */}
       <div className="h-16 sm:h-24 md:h-32" aria-hidden="true"></div>
       <main className="relative">
-        <Hero />
+        <Hero locale="en" />
 
         {/* Wavy Separator 1 - Hero to About */}
         <div className="relative h-12 sm:h-16 md:h-24 overflow-hidden">

app/_ui/HomePageServer.tsx

@@ -1,14 +1,13 @@
 import Header from "../components/Header.server";
+import Hero from "../components/Hero";
 import Script from "next/script";
 import {
-  getHeroTranslations,
   getAboutTranslations,
   getProjectsTranslations,
   getContactTranslations,
   getFooterTranslations,
 } from "@/lib/translations-loader";
 import {
-  HeroClient,
   AboutClient,
   ProjectsClient,
   ContactClient,
@@ -20,9 +19,8 @@ interface HomePageServerProps {
 }
 
 export default async function HomePageServer({ locale }: HomePageServerProps) {
-  // Parallel laden aller Translations
-  const [heroT, aboutT, projectsT, contactT, footerT] = await Promise.all([
-    getHeroTranslations(locale),
+  // Parallel laden aller Translations (hero translations handled by Hero server component)
+  const [aboutT, projectsT, contactT, footerT] = await Promise.all([
     getAboutTranslations(locale),
     getProjectsTranslations(locale),
     getContactTranslations(locale),
@@ -57,7 +55,7 @@ export default async function HomePageServer({ locale }: HomePageServerProps) {
       {/* Spacer to prevent navbar overlap */}
       <div className="h-24 md:h-32" aria-hidden="true"></div>
       <main className="relative">
-        <HeroClient locale={locale} translations={heroT} />
+        <Hero locale={locale} />
 
         {/* Wavy Separator 1 - Hero to About */}
         <div className="relative h-24 overflow-hidden">