MAG-578: Fix to improve fulfillment compatibility

Event moved from adminhtml to global, so now observer also listen to other areas like API requests
Cast tracking numbers to strings to correct in memory values like XML nodes (e.g.: when using ShipStation extension)

Author: ebanolopes

www/magento/app/code/community/Signifyd/Connect/Helper/Data.php

@@ -1374,10 +1374,10 @@ public function getTrackingNumbers(Mage_Sales_Model_Order_Shipment $shipment)
 
         /** @var Mage_Sales_Model_Order_Shipment_Track $tracking */
         foreach ($trackingCollection->getItems() as $tracking) {
-            $number = trim($tracking->getNumber());
+            $number = trim((string) $tracking->getNumber());
 
             if (empty($number) == false) {
-                $trackingNumbers[] = $tracking->getNumber();
+                $trackingNumbers[] = $number;
             }
         }
 

www/magento/app/code/community/Signifyd/Connect/etc/config.xml

@@ -186,6 +186,16 @@
                     </signifyd_connect>
                 </observers>
             </order_cancel_after>
+
+            <!-- Fulfilment events -->
+            <sales_order_shipment_track_save_commit_after>
+                <observers>
+                    <signifyd_connect>
+                        <model>signifyd_connect/observer</model>
+                        <method>salesOrderShipmentTrackSaveCommitAfter</method>
+                    </signifyd_connect>
+                </observers>
+            </sales_order_shipment_track_save_commit_after>
         </events>
     </global>
     <crontab>
@@ -294,15 +304,6 @@
                     </signifyd_connect>
                 </observers>
             </core_block_abstract_to_html_before>
-            <!-- Fulfilment events -->
-            <sales_order_shipment_track_save_commit_after>
-                <observers>
-                    <signifyd_connect>
-                        <model>signifyd_connect/observer</model>
-                        <method>salesOrderShipmentTrackSaveCommitAfter</method>
-                    </signifyd_connect>
-                </observers>
-            </sales_order_shipment_track_save_commit_after>
         </events>
     </adminhtml>
     <default>