Refactor inventory forms to include unit and location options; update quantity input handling

frontend/app/admin/products/page.tsx

@@ -2,31 +2,13 @@ import { fetchJson } from '../../../lib/api';
 import type { Product } from '../../../features/inventory/types';
 import CanonicalNameForm from './CanonicalNameForm';
 import MergePreviewForm from './MergePreviewForm';
-import Link from 'next/link';
 
 export default async function AdminProductsPage() {
   const products = await fetchJson<Product[]>('/api/products');
 
   return (
     <main style={{ padding: '1.5rem', maxWidth: '1100px', margin: '0 auto' }}>
-      <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: '1.5rem' }}>
-        <h1 style={{ margin: 0 }}>Admin: Produkter</h1>
-        <Link
-          href="/recipes/create"
-          style={{
-            padding: '0.5rem 1rem',
-            background: '#0070f3',
-            color: 'white',
-            borderRadius: '4px',
-            textDecoration: 'none',
-            fontWeight: 500,
-            fontSize: '1rem',
-            transition: 'background 0.2s',
-          }}
-        >
-          Lägg till nytt recept
-        </Link>
-      </div>
+      <h1 style={{ marginBottom: '1.5rem' }}>Admin: Produkter</h1>
       <p>Här kan du granska och standardisera produktnamn.</p>
 
       <MergePreviewForm products={products} />