perf(images): force synchronous decoding for LCP hero image to hit 100/100

app/[locale]/page.tsx

@@ -132,10 +132,10 @@ export default async function Home(props: { params: Promise<{ locale: string }>
   }
   
   setRequestLocale(locale);
-  preload('/assets/videos/web/hero-kabelpflug-poster.webp', { 
+  preload('/assets/videos/web/hero-kabelpflug-poster-v2.webp', { 
     as: 'image', 
     fetchPriority: 'high',
-    imageSrcSet: '/assets/videos/web/hero-kabelpflug-poster-mobile.webp 800w, /assets/videos/web/hero-kabelpflug-poster.webp 1920w',
+    imageSrcSet: '/assets/videos/web/hero-kabelpflug-poster-mobile-v2.webp 800w, /assets/videos/web/hero-kabelpflug-poster-v2.webp 1920w',
     imageSizes: '100vw'
   });
 

components/blocks/HeroVideo.tsx

@@ -34,10 +34,13 @@ export function HeroVideo(props: HeroVideoProps) {
 
   let defaultPoster = "/assets/photos/DJI_0048.JPG";
   if (videoUrl && videoUrl.endsWith('.mp4')) {
-    defaultPoster = videoUrl.replace('.mp4', '-poster.webp');
+    defaultPoster = videoUrl.replace('.mp4', '-poster-v2.webp');
   }
 
-  const posterSrc = props.backgroundImage?.url || props.posterImage?.url || data?.posterImage?.url || defaultPoster;
+  let posterSrc = props.backgroundImage?.url || props.posterImage?.url || data?.posterImage?.url || defaultPoster;
+  // Force -v2 to bypass CDN cache of the heavy 39KB image
+  posterSrc = posterSrc.replace('-poster.webp', '-poster-v2.webp');
+
   const posterAlt = props.backgroundImage?.alt || data?.posterImage?.alt || "E-TIB Gruppe Baustelle";
 
   const ctaLabel = props.ctaLabel || props.linkText || data?.ctaLabel || 'Unternehmen entdecken';
@@ -56,11 +59,10 @@ export function HeroVideo(props: HeroVideoProps) {
       <img
         key={`img-${pathname}-${posterSrc}`}
         src={posterSrc}
-        srcSet={posterSrc.includes('-poster.webp') ? `${posterSrc.replace('-poster.webp', '-poster-mobile.webp')} 800w, ${posterSrc} 1920w` : undefined}
-        sizes={posterSrc.includes('-poster.webp') ? "100vw" : undefined}
+        srcSet={posterSrc.includes('-poster-v2.webp') ? `${posterSrc.replace('-poster-v2.webp', '-poster-mobile-v2.webp')} 800w, ${posterSrc} 1920w` : undefined}
+        sizes={posterSrc.includes('-poster-v2.webp') ? "100vw" : undefined}
         alt={posterAlt}
         className="absolute inset-0 w-full h-full object-cover z-[1] pointer-events-none"
-        decoding="async"
         loading="eager"
         fetchPriority="high"
       />

package.json

@@ -1,6 +1,6 @@
 {
   "name": "e-tib-nextjs",
-  "version": "2.4.16",
+  "version": "2.4.19",
   "type": "module",
   "private": true,
   "packageManager": "pnpm@10.18.3",