feat: initial implementation of modern modular webshop (shop core)

shop/app/admin/layout.tsx

@@ -0,0 +1,57 @@
+import Link from 'next/link'
+import { LayoutDashboard, Package, Settings, Users, LogOut } from 'lucide-react'
+
+export default function AdminLayout({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  return (
+    <div className="flex min-h-screen bg-[#020617] text-white">
+      {/* Sidebar */}
+      <aside className="w-64 border-r border-white/5 bg-black/20 backdrop-blur-xl flex flex-col">
+        <div className="p-6">
+          <Link href="/" className="flex items-center gap-2">
+            <div className="w-8 h-8 bg-primary rounded-lg flex items-center justify-center">
+              <Package className="h-5 w-5 text-white" />
+            </div>
+            <span className="font-bold text-xl tracking-tighter">Admin Panel</span>
+          </Link>
+        </div>
+        
+        <nav className="flex-1 px-4 space-y-2 py-4">
+          <Link href="/admin" className="flex items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <LayoutDashboard className="w-5 h-5" />
+            Dashboard
+          </Link>
+          <Link href="/admin/products" className="flex items-center gap-3 px-3 py-2 rounded-lg bg-primary/10 text-primary border border-primary/20">
+            <Package className="w-5 h-5" />
+            Produkte
+          </Link>
+          <Link href="/admin/orders" className="flex items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <Users className="w-5 h-5" />
+            Bestellungen
+          </Link>
+          <Link href="/admin/settings" className="flex items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <Settings className="w-5 h-5" />
+            Einstellungen
+          </Link>
+        </nav>
+
+        <div className="p-4 border-t border-white/5">
+          <button className="flex w-full items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <LogOut className="w-5 h-5" />
+            Abmelden
+          </button>
+        </div>
+      </aside>
+
+      {/* Main Content */}
+      <main className="flex-1 overflow-auto">
+        <div className="container mx-auto max-w-7xl">
+          {children}
+        </div>
+      </main>
+    </div>
+  )
+}

shop/app/admin/page.tsx

@@ -0,0 +1,87 @@
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
+import { Package, ShoppingCart, Users, TrendingUp } from 'lucide-react'
+
+export default function AdminDashboard() {
+  return (
+    <div className="p-8 space-y-8">
+      <h2 className="text-3xl font-bold tracking-tight text-gradient">Dashboard</h2>
+      
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
+        <Card className="glass-dark border-white/5">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">Umsatz gesamt</CardTitle>
+            <TrendingUp className="h-4 w-4 text-primary" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">€12,234.56</div>
+            <p className="text-xs text-muted-foreground">+20.1% zum Vormonat</p>
+          </CardContent>
+        </Card>
+        <Card className="glass-dark border-white/5">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">Bestellungen</CardTitle>
+            <ShoppingCart className="h-4 w-4 text-primary" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">+573</div>
+            <p className="text-xs text-muted-foreground">+12% zur Vorwoche</p>
+          </CardContent>
+        </Card>
+        <Card className="glass-dark border-white/5">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">Produkte</CardTitle>
+            <Package className="h-4 w-4 text-primary" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">12</div>
+            <p className="text-xs text-muted-foreground">+2 neue Module</p>
+          </CardContent>
+        </Card>
+        <Card className="glass-dark border-white/5">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">Kunden</CardTitle>
+            <Users className="h-4 w-4 text-primary" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">2,450</div>
+            <p className="text-xs text-muted-foreground">+180 heute</p>
+          </CardContent>
+        </Card>
+      </div>
+      
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-7">
+        <Card className="col-span-4 glass-dark border-white/5">
+          <CardHeader>
+            <CardTitle>Übersicht</CardTitle>
+          </CardHeader>
+          <CardContent className="pl-2">
+            <div className="h-[200px] flex items-center justify-center text-muted-foreground">
+              [Chart Platzhalter]
+            </div>
+          </CardContent>
+        </Card>
+        <Card className="col-span-3 glass-dark border-white/5">
+          <CardHeader>
+            <CardTitle>Letzte Bestellungen</CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-4">
+              {[1, 2, 3].map(i => (
+                <div key={i} className="flex items-center gap-4">
+                  <div className="w-9 h-9 rounded-full bg-primary/10 flex items-center justify-center text-primary text-xs font-bold">
+                    JD
+                  </div>
+                  <div className="flex-1 space-y-1">
+                    <p className="text-sm font-medium">John Doe</p>
+                    <p className="text-xs text-muted-foreground">john.doe@example.com</p>
+                  </div>
+                  <div className="font-medium">+€450.00</div>
+                </div>
+              ))}
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  )
+}

shop/app/admin/products/page.tsx

@@ -0,0 +1,39 @@
+import { getProducts } from '@/lib/actions/products'
+
+import { ProductList } from '@/components/admin/product-list'
+import { CreateProductDialog } from '@/components/admin/create-product-dialog'
+import { Package, Plus } from 'lucide-react'
+import { Suspense } from 'react'
+
+export default async function AdminProductsPage() {
+  return (
+    <div className="flex-1 space-y-8 p-8 pt-6">
+      <div className="flex items-center justify-between space-y-2">
+        <div>
+          <h2 className="text-3xl font-bold tracking-tight text-gradient flex items-center gap-3">
+            <Package className="w-8 h-8 text-primary" />
+            Produkte & Module
+          </h2>
+          <p className="text-muted-foreground">
+            Verwalte deine Hauptprodukte und deren zubuchbare Module.
+          </p>
+        </div>
+        <div className="flex items-center space-x-2">
+          <CreateProductDialog>
+            <button className="inline-flex items-center justify-center rounded-md bg-primary px-4 py-2 text-sm font-medium text-primary-foreground shadow transition-colors hover:bg-primary/90 focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50">
+              <Plus className="mr-2 h-4 w-4" /> Produkt hinzufügen
+            </button>
+          </CreateProductDialog>
+        </div>
+      </div>
+      <Suspense fallback={<div className="h-40 w-full animate-pulse bg-white/5 rounded-xl" />}>
+        <ProductDataWrapper />
+      </Suspense>
+    </div>
+  )
+}
+
+async function ProductDataWrapper() {
+  const products = await getProducts()
+  return <ProductList initialProducts={products} />
+}