phase 4

Modules/Categories/Models/Category.php

@@ -0,0 +1,12 @@
+<?php
+namespace Modules\Categories\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+final class Category extends Model
+{
+    protected $fillable = ['parent_id','name','slug','description','type','sort_order','is_active'];
+    protected function casts(): array { return ['is_active'=>'boolean','sort_order'=>'integer']; }
+    public function parent(): BelongsTo { return $this->belongsTo(self::class, 'parent_id'); }
+    public function children(): HasMany { return $this->hasMany(self::class, 'parent_id')->orderBy('sort_order'); }
+}