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/backend/server.js

@@ -778,6 +778,65 @@ app.get('/api/products/:source/:productId/pharmacies', async (req, res) => {
   }
 });
 
+// ========== PARAPHARMACY PROXY ==========
+
+const PARAPHARMACY_API_URL = process.env.PARAPHARMACY_API_URL || 'http://localhost:3002';
+
+// Search parapharmacy products (proxy to parapharmacy-api)
+app.get('/api/products/parapharmacy/search', searchLimiter, async (req, res) => {
+  try {
+    const { q, category, brand, page = 1, limit = 20 } = req.query;
+    const params = new URLSearchParams();
+    if (q) params.set('q', q);
+    if (category) params.set('category', category);
+    if (brand) params.set('brand', brand);
+    params.set('page', page);
+    params.set('limit', limit);
+
+    const response = await axios.get(`${PARAPHARMACY_API_URL}/api/products/search?${params}`);
+    res.json(response.data);
+  } catch (error) {
+    console.error('[Parapharmacy] Search error:', error.message);
+    res.status(500).json({ error: 'Error searching parapharmacy products' });
+  }
+});
+
+// Get parapharmacy product details (proxy to parapharmacy-api)
+app.get('/api/products/parapharmacy/:id', async (req, res) => {
+  try {
+    const response = await axios.get(`${PARAPHARMACY_API_URL}/api/products/${req.params.id}`);
+    res.json(response.data);
+  } catch (error) {
+    console.error('[Parapharmacy] Detail error:', error.message);
+    if (error.response?.status === 404) {
+      return res.status(404).json({ error: 'Product not found' });
+    }
+    res.status(500).json({ error: 'Error fetching product details' });
+  }
+});
+
+// Get parapharmacy categories (proxy to parapharmacy-api)
+app.get('/api/products/parapharmacy/categories', async (req, res) => {
+  try {
+    const response = await axios.get(`${PARAPHARMACY_API_URL}/api/products/categories`);
+    res.json(response.data);
+  } catch (error) {
+    console.error('[Parapharmacy] Categories error:', error.message);
+    res.status(500).json({ error: 'Error fetching categories' });
+  }
+});
+
+// Get parapharmacy brands (proxy to parapharmacy-api)
+app.get('/api/products/parapharmacy/brands', async (req, res) => {
+  try {
+    const response = await axios.get(`${PARAPHARMACY_API_URL}/api/products/brands`);
+    res.json(response.data);
+  } catch (error) {
+    console.error('[Parapharmacy] Brands error:', error.message);
+    res.status(500).json({ error: 'Error fetching brands' });
+  }
+});
+
 // ========== AUTHENTICATION MIDDLEWARE ==========
 
 // Middleware to check if user is authenticated