fix: address code review issues — nutriscore field name, cache write isolation, missing rate limiter, dead props

apps/frontend/src/components/MedicineResults.jsx

@@ -6,9 +6,8 @@ import {
   subscribeToPush,
   unsubscribeFromPush,
 } from '../utils/notifications.js';
-import ProductResults from './ProductResults';
 
-function MedicineResults({ medicines, products = [], onSelect, onSelectProduct, query, currentUser, onLoginRequest }) {
+function MedicineResults({ medicines, onSelect, query, currentUser, onLoginRequest }) {
   if (medicines.length === 0 && query.length >= 2) {
     return (
       <div className="no-results">
@@ -28,12 +27,6 @@ function MedicineResults({ medicines, products = [], onSelect, onSelectProduct,
           onLoginRequest={onLoginRequest}
         />
       ))}
-      {products.length > 0 && (
-        <div className="mt-6">
-          <h3 className="text-lg font-semibold mb-3">Parafarmacia y Bebé</h3>
-          <ProductResults products={products} onSelect={onSelectProduct} />
-        </div>
-      )}
     </div>
   );
 }

apps/frontend/src/components/ProductResults.jsx

@@ -41,7 +41,7 @@ function ProductResults({ products, onSelect }) {
 }
 
 function ProductCard({ product, onSelect }) {
-  const nutriScore = product.nutri_score;
+  const nutriScore = product.nutriscore;
   const nutriScoreColors = {
     a: '#16a34a',
     b: '#65a30d',