topnotch_website/database/seeders/ServiceFileSeeder.php

<?php

namespace Database\Seeders;

use App\Models\ProductService;
use App\Models\ServiceFile;
use Illuminate\Database\Seeder;

class ServiceFileSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        foreach (ProductService::all() as $product) {
            $file = ServiceFile::factory()->create();
            $file->productServices()->save($product);
        }
    }
}