debug: Add diagnostics for Buy Box warning issue

components/BuyBoxWarningBadge.tsx

@@ -19,6 +19,11 @@ export const BuyBoxWarningBadge: React.FC<BuyBoxWarningBadgeProps> = ({ asin, bu
     if (!buyBoxLostMap || !asin) return null;
 
     const data = buyBoxLostMap.get(asin.toUpperCase());
+
+    if (asin.toUpperCase() === 'B0D3874WSD') {
+        console.log(`[BuyBoxBadge Debug] ASIN: ${asin}, Found in map: ${!!data}, Countries: ${data?.countries.join(', ') || 'none'}`);
+    }
+
     if (!data || data.countries.length === 0) return null;
 
     return (