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/Setting.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\Cache;
+
+class Setting extends Model
+{
+    protected $fillable = ['key','value'];
+
+    public static function get(string $key, mixed $default = null): mixed
+    {
+        return Cache::remember("setting_{$key}", 3600, function () use ($key, $default) {
+            return self::where('key', $key)->value('value') ?? $default;
+        });
+    }
+
+    public static function set(string $key, mixed $value): void
+    {
+        self::updateOrCreate(['key' => $key], ['value' => $value]);
+        Cache::forget("setting_{$key}");
+    }
+}