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/parapharmacy-api/Dockerfile

@@ -0,0 +1,22 @@
+FROM node:20-alpine
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production
+
+# Copy source code
+COPY src/ ./src/
+
+# Expose port
+EXPOSE 3002
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node -e "require('http').get('http://localhost:3002/api/health', (r) => { process.exit(r.statusCode === 200 ? 0 : 1) })"
+
+# Start server
+CMD ["node", "--env-file-if-exists=.env", "src/server.js"]