feat: working scraping for Promofarma, DocMorris, and Primor

- Fixed Primor URL format and selectors
- Created simple N8N webhook that calls scraper API
- All 3 sources now working:
  - Promofarma: 20 products
  - DocMorris: 10 products
  - Primor: 20 products
- Total: 130 products in database
- N8N webhook at /webhook/scrape working correctly

n8n/workflow-sdk-simple.js

@@ -0,0 +1,51 @@
+import { workflow, node, trigger } from '@n8n/workflow-sdk';
+
+const webhook = trigger({
+  type: 'n8n-nodes-base.webhook',
+  version: 2,
+  config: {
+    name: 'Webhook',
+    position: [240, 300],
+    parameters: {
+      httpMethod: 'POST',
+      path: 'scrape',
+      responseMode: 'lastNode'
+    }
+  },
+  output: [{}]
+});
+
+const callApi = node({
+  type: 'n8n-nodes-base.httpRequest',
+  version: 4.2,
+  config: {
+    name: 'Call Scraper API',
+    position: [440, 300],
+    parameters: {
+      method: 'POST',
+      url: 'http://parapharmacy-api:3002/api/scrape',
+      sendBody: true,
+      specifyBody: 'json',
+      jsonBody: '={{ JSON.stringify($json.body || { queries: ["capricare"], sources: ["promofarma"] }) }}'
+    }
+  },
+  output: [{}]
+});
+
+const response = node({
+  type: 'n8n-nodes-base.code',
+  version: 2,
+  config: {
+    name: 'Response',
+    position: [640, 300],
+    parameters: {
+      jsCode: `return [{ json: $input.first().json }];`
+    }
+  },
+  output: [{}]
+});
+
+export default workflow('scrape-simple', 'Parapharmacy Scraper Simple')
+  .add(webhook)
+  .to(callApi)
+  .to(response);