feat: Dokumenten Upload im Normenrecherche-Tab

Drag & Drop Upload-Zone fuer kundeneigene PDFs (Normen, Spezifikationen).
Tenant-isoliert, Status-Tracking, Backend-Placeholder fuer RAG-Pipeline.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-compliance/app/sdk/iace/[projectId]/norms/page.tsx

@@ -2,6 +2,7 @@
 
 import { useParams } from 'next/navigation'
 import { SuggestedNorms } from '../_components/SuggestedNorms'
+import { DocumentUpload } from './_components/DocumentUpload'
 
 export default function NormsPage() {
   const params = useParams()