feat: phase 4 — orders with status workflow, idempotent complete_order RPC, delivery note PDF

app/Http/Controllers/DeliveryNoteController.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Services\OrderService;
+use Barryvdh\DomPDF\Facade\Pdf;
+use Symfony\Component\HttpFoundation\Response;
+
+class DeliveryNoteController extends Controller
+{
+    public function __invoke(string $orderId, OrderService $service): Response
+    {
+        $order = $service->deliveryNoteData($orderId);
+
+        $total = collect($order['order_items'] ?? [])->sum(fn ($item) => (int) ($item['subtotal'] ?? 0));
+
+        $pdf = Pdf::loadView('pdf.delivery-note', [
+            'order' => $order,
+            'total' => $total,
+        ])->setPaper('a5', 'landscape');
+
+        return $pdf->stream(str_replace('/', '-', $order['note_number']).'.pdf');
+    }
+}