Add header auth to n8n webhook call

Introduce header-based authentication for the n8n webhook request by adding $AuthHeaderName and $AuthHeaderValue, constructing a $Headers hashtable, and passing it to Invoke-RestMethod via the -Headers parameter. Keeps the existing payload (status, service, output) and log retrieval; webhook URL is unchanged.

Update-DockerStacks-n8n.ps1

@@ -88,13 +88,24 @@ Write-Host "All requested updates finished." -ForegroundColor Cyan
 Stop-Transcript
 $LogContent = Get-Content "$env:TEMP\docker_update_log.txt" -Raw
 
-# Send to n8n (Replace the URL with your actual n8n Webhook URL)
+# Send to n8n
 $WebhookUrl = "https://n8n.mohandl3g.ly/webhook/dockerupdater"
+
+# --- SECURITY CONFIGURATION ---
+$AuthHeaderName = "MohandL3G-Auth"
+$AuthHeaderValue = "Ms@199903"
+# ------------------------------
+
+$Headers = @{
+    $AuthHeaderName = $AuthHeaderValue
+}
+
 $Body = @{
     status = "complete"
     service = "DockerUpdater"
     output = $LogContent
 }
 
-Invoke-RestMethod -Uri $WebhookUrl -Method Post -Body ($Body | ConvertTo-Json) -ContentType "application/json"
+# Added -Headers parameter here
+Invoke-RestMethod -Uri $WebhookUrl -Method Post -Body ($Body | ConvertTo-Json) -ContentType "application/json" -Headers $Headers
 # ---------------------