Fix: Add defensive check to WebVitalsScore and reformat MDX to avoid prerender error

apps/web/src/components/WebVitalsScore.tsx

@@ -16,6 +16,11 @@ interface WebVitalsScoreProps {
 }
 
 export const WebVitalsScore: React.FC<WebVitalsScoreProps> = ({ values, description }) => {
+    if (!values) {
+        console.error("WebVitalsScore: 'values' prop is missing!");
+        return null;
+    }
+
     const getStatus = (metric: 'lcp' | 'inp' | 'cls', value: number): 'good' | 'needs-improvement' | 'poor' => {
         if (metric === 'lcp') return value <= 2.5 ? 'good' : value <= 4.0 ? 'needs-improvement' : 'poor';
         if (metric === 'inp') return value <= 200 ? 'good' : value <= 500 ? 'needs-improvement' : 'poor';