fix: actually send the N8N_AUTH_TOKEN header to n8n

src/services/n8n.service.ts

@@ -2,6 +2,7 @@ import axios from 'axios';
 
 export const sendToN8n = async (data: any): Promise<void> => {
     const n8nWebhookUrl = process.env.N8N_WEBHOOK_URL;
+    const n8nAuthToken = process.env.N8N_AUTH_TOKEN;
 
     if (!n8nWebhookUrl) {
         console.error('N8N_WEBHOOK_URL is not defined in environment variables.');
@@ -10,11 +11,17 @@ export const sendToN8n = async (data: any): Promise<void> => {
 
     try {
         console.log(`Forwarding payload to n8n at ${n8nWebhookUrl}...`);
-        const response = await axios.post(n8nWebhookUrl, data, {
-            headers: {
-                'Content-Type': 'application/json'
-            }
-        });
+        
+        const headers: Record<string, string> = {
+            'Content-Type': 'application/json'
+        };
+
+        if (n8nAuthToken) {
+            // Send exactly what the user typed in the environment variable
+            headers['Authorization'] = n8nAuthToken;
+        }
+
+        const response = await axios.post(n8nWebhookUrl, data, { headers });
         console.log(`Successfully forwarded to n8n. Status: ${response.status}`);
     } catch (error: any) {
         console.error('Failed to forward payload to n8n.', error.message);