Initial baseline: LaraBlog core with plugin commerce surface.

Captures the current working tree after theme slots, ArticleAccess, and the payment / paid-content plugins so subsequent work has a reviewable git history.

app/Models/Category.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Category extends Model
+{
+    protected $fillable = [
+        'name',
+        'display_order',
+        'articles_count',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'display_order' => 'integer',
+            'articles_count' => 'integer',
+        ];
+    }
+
+    public function articles(): HasMany
+    {
+        return $this->hasMany(Article::class);
+    }
+}