fix: product detail view for parapharmacy products

- Updated ProductView to use correct endpoint for parapharmacy
- Updated getProduct service to handle parapharmacy products
- Shows price, category, brand, source for parapharmacy products
- Updated labels from 'OFF' to 'Parafarmacia'

apps/frontend-mobile/services/products.ts

@@ -105,7 +105,12 @@ export async function getParapharmacyBrands(): Promise<string[]> {
 
 export async function getProduct(source: string, id: string): Promise<Product | null> {
   try {
-    const { data } = await api.get<Product>(`/products/${source}/${id}`);
+    // Use different endpoint for parapharmacy products
+    const endpoint = source === 'parapharmacy'
+      ? `/products/parapharmacy/${id}`
+      : `/products/${source}/${id}`;
+
+    const { data } = await api.get<Product>(endpoint);
     return data;
   } catch (error) {
     console.error('[Products] Detail error:', error);