star-cloud/app/Models/System/UiBundle.php

<?php

namespace App\Models\System;

use App\Traits\TenantScoped;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class UiBundle extends Model
{
    use HasFactory, TenantScoped;

    protected $fillable = [
        'company_id',
        'name',
    ];

    /**
     * 組合內容：各部位 → 元素/色值。
     */
    public function items()
    {
        return $this->hasMany(UiBundleItem::class);
    }

    /**
     * 以 part_key 為鍵的內容對照（方便下發與表單回填）。
     */
    public function itemsByPart()
    {
        return $this->items->keyBy('part_key');
    }
}