Initial commit: WitShop Laravel Online-Shop

- Laravel 11, Blade, Alpine.js, Tailwind CSS
- Produkt- & Kategorieverwaltung mit Varianten
- Checkout (Vorkasse + Rechnung), Session-Warenkorb
- Admin-Backend (Dashboard, Bestellungen, Kunden, CMS)
- DSGVO-konform: Cookie-Consent, Impressum, Widerruf, AGB
- PDF-Rechnung via dompdf, SMTP-Mailversand
- Kundenverwaltung mit manueller Freischaltung

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Models/Category.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Category extends Model
+{
+    protected $fillable = ['parent_id','name','slug','description','image','sort_order','active'];
+
+    protected $casts = ['active' => 'boolean'];
+
+    public function parent(): BelongsTo
+    {
+        return $this->belongsTo(Category::class, 'parent_id');
+    }
+
+    public function children(): HasMany
+    {
+        return $this->hasMany(Category::class, 'parent_id')->orderBy('sort_order');
+    }
+
+    public function products(): HasMany
+    {
+        return $this->hasMany(Product::class);
+    }
+}