feat: Add CreateShipmentOnReadyToShip listener to handle webhook-triggered shipments

- Create new listener that fires on ReadyToShipIntent event
- Register listener in EventServiceProvider
- Fix log statements in ShippingController to use order UUID instead of ID
- Now when Trello card moves to 'Ready to Ship', backend automatically creates shipment

app/Http/Controllers/ShippingController.php

@@ -23,6 +23,7 @@ class ShippingController extends Controller
      */
     public function createShipment(Request $request, Order $order)
     {
+        Log::info('Initiating shipment creation', ['order_uuid' => $order->uuid]);
         // Guard 1: Verify packing completed with valid dimensions
         if (! $this->validatePackingGate($order)) {
             return response()->json([
@@ -60,7 +61,7 @@ class ShippingController extends Controller
 
         // Guard 4: Idempotency - if already shipped, return existing shipment
         if ($order->courier_waybill_id) {
-            Log::info('Shipment already exists, returning existing', ['order_id' => $order->id]);
+            Log::info('Shipment already exists, returning existing', ['order_uuid' => $order->uuid]);
 
             return response()->json([
                 'success' => true,
@@ -90,7 +91,7 @@ class ShippingController extends Controller
             ]);
 
             Log::info('Shipment created with courier', [
-                'order_id' => $order->id,
+                'order_uuid' => $order->uuid,
                 'waybill_id' => $shipmentData['waybill_id'],
                 'tracking_number' => $shipmentData['tracking_number'],
             ]);
@@ -120,7 +121,7 @@ class ShippingController extends Controller
             ]);
         } catch (\Exception $e) {
             Log::error('Failed to create shipment', [
-                'order_id' => $order->id,
+                'order_uuid' => $order->uuid,
                 'error' => $e->getMessage(),
             ]);