autocde2.0/app/Http/Resources/API/ProjectGanttResource.php

<?php

namespace App\Http\Resources\API;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class ProjectGanttResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        return [
            "id" => $this->id,
            "name" => $this->name,
            "status" => $this->status,
            "assign" => new UserProfileResource($this->assignTo),
            "begin" => (string)$this->begin,
            "end" => (string)$this->end,
        ];
    }
}