fix(ui): remove summary section from ExchangeHeader, keep only correlation chain

ui/src/pages/Exchanges/ExchangeHeader.tsx

@@ -30,16 +30,10 @@ export function ExchangeHeader({ detail, onExchangeClick }: ExchangeHeaderProps)
   const chain = chainResult?.data;
   const showChain = chain && chain.length > 1;
 
+  if (!showChain) return null;
+
   return (
     <div className={styles.header}>
-      <div className={styles.summary}>
-        <StatusDot variant={statusVariant(detail.status)} />
-        <MonoText size="xs">{detail.exchangeId || detail.executionId}</MonoText>
-        <Badge label={detail.status === 'COMPLETED' ? 'OK' : detail.status} color={statusVariant(detail.status)} />
-        <span style={{ color: 'var(--text-muted)' }}>{detail.routeId}</span>
-        <span className={styles.duration}>{formatDuration(detail.durationMs)}</span>
-      </div>
-
       {showChain && (
         <div className={styles.chain}>
           <span className={styles.chainLabel}>Correlated Exchanges</span>