feat: add parapharmacy API with MongoDB and N8N setup

- Create parapharmacy-api microservice with Express + Swagger + MongoDB
- Add product model with full-text search and deduplication
- Add CRUD endpoints and bulk upsert for scrapers
- Update docker-compose.yml with MongoDB, N8N, and parapharmacy-api services
- Add proxy endpoints in FarmaFinder backend for parapharmacy
- Update frontend services to use parapharmacy API
- Add Swagger documentation at /api/docs

apps/frontend-mobile/app/(tabs)/search.tsx

@@ -9,7 +9,7 @@ import { useDebounce } from '../../hooks/useDebounce';
 import { useAuth } from '../../hooks/useAuth';
 import { useRecentSearches } from '../../hooks/useRecentSearches';
 import { searchMedicines } from '../../services/medicines';
-import { searchProducts, Product } from '../../services/products';
+import { searchParapharmacy, Product } from '../../services/products';
 import { useThemeContext } from '../../components/ThemeProvider';
 import { spacing, borderRadius } from '../../constants/theme';
 import { Medicine } from '../../types';
@@ -78,10 +78,10 @@ export default function SearchScreen() {
 
     const fetchProducts = async () => {
       try {
-        const productResults = await searchProducts(debouncedQuery);
-        setProducts(productResults);
+        const response = await searchParapharmacy(debouncedQuery);
+        setProducts(response.results || []);
       } catch (err) {
-        console.error('Product search error:', err);
+        console.error('Parapharmacy search error:', err);
       }
     };