fix(perf): remove animate-fade-in from main and force sync decode on logo to eliminate 2s Element Render Delay and align LCP with FCP

app/[locale]/layout.tsx

@@ -197,7 +197,7 @@ export default async function Layout(props: {
             
             <main
               id="main-content"
-              className="flex-grow animate-fade-in overflow-visible"
+              className="flex-grow overflow-visible"
               tabIndex={-1}
             >
               {children}

components/layout/Header.tsx

@@ -111,6 +111,7 @@ export function Header({ navLinks }: HeaderProps) {
               priority
               fetchPriority="high"
               sizes="192px"
+              unoptimized
             />
             {/* Masked sweep overlay on hover */}
             <div