feat: send WhatsApp notification on production order completed

app/Notifications/Production/ProductionOrderCompletedNotification.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Notifications\Production;
+
+use App\Models\ProductionOrder;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Notifications\Notification;
+use PromoSeven\UltraMessage\UltraMessageChannel;
+use PromoSeven\UltraMessage\UltraMessageMessage;
+
+class ProductionOrderCompletedNotification extends Notification implements ShouldQueue
+{
+    use Queueable;
+
+    public function __construct(private ProductionOrder $order) {}
+
+    public function via(mixed $notifiable): array
+    {
+        return [UltraMessageChannel::class];
+    }
+
+    public function toUltraMessage(mixed $notifiable): UltraMessageMessage
+    {
+        return UltraMessageMessage::text(
+            "✅ *Production Complete*\n\nProduction Order *#{$this->order->order_number}* has been completed.\n\nProduct: {$this->order->product->item_name}\nQuantity: {$this->order->quantity_to_produce}\nCompleted: " . now()->format('d M Y')
+        );
+    }
+}