feat(47-shipment-created-automation): immediate shipment automation trigger

Phase 47 complete:

- add event shipment.created triggered immediately after shipment creation

- add action update_shipment_status with real-change guard and chain-safe emit

- update automation UI/options, docs, and PAUL state artifacts

src/Modules/Automation/AutomationController.php

@@ -15,9 +15,9 @@ use Throwable;
 
 final class AutomationController
 {
-    private const ALLOWED_EVENTS = ['receipt.created', 'shipment.status_changed'];
+    private const ALLOWED_EVENTS = ['receipt.created', 'shipment.created', 'shipment.status_changed'];
     private const ALLOWED_CONDITION_TYPES = ['integration', 'shipment_status'];
-    private const ALLOWED_ACTION_TYPES = ['send_email', 'issue_receipt'];
+    private const ALLOWED_ACTION_TYPES = ['send_email', 'issue_receipt', 'update_shipment_status'];
     private const ALLOWED_RECIPIENTS = ['client', 'client_and_company', 'company'];
     private const ALLOWED_RECEIPT_ISSUE_DATE_MODES = ['today', 'order_date', 'payment_date'];
     private const ALLOWED_RECEIPT_DUPLICATE_POLICIES = ['skip_if_exists', 'allow_duplicates'];
@@ -416,6 +416,15 @@ final class AutomationController
             ];
         }
 
+        if ($type === 'update_shipment_status') {
+            $statusKey = trim((string) ($action['shipment_status_key'] ?? ''));
+            if (!array_key_exists($statusKey, self::SHIPMENT_STATUS_OPTIONS)) {
+                return null;
+            }
+
+            return ['status_key' => $statusKey];
+        }
+
         return null;
     }