feat(MED-100): small improvements

lib/services/medusaCart.service.ts

@@ -73,7 +73,7 @@ export async function handleNavigateToPayment({ language }: { language: string }
     currency: cart.currency_code.toUpperCase(),
     description: `Order from Medreport`,
     locale: language,
-    merchantReference: `${account.id}:${Date.now()}`,
+    merchantReference: `${account.id}:${cart.id}:${Date.now()}`,
   });
 
   const { error } = await supabase