feat: Consent Document Approval Workflow im Frontend aktivieren

VersionsTab zeigt jetzt kontextabhaengige Workflow-Buttons:
- Entwurf → "Zur Pruefung" (Submit for Review)
- In Pruefung → "Genehmigen" / "Ablehnen" (Approve/Reject)
- Genehmigt → "Publizieren" (Publish)

Backend-Endpoints (legal_document_routes.py) existierten bereits,
wurden aber vom Frontend nicht genutzt. Status-Badges erweitert:
draft, review, approved, published, archived, rejected.

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

admin-compliance/app/sdk/consent-management/page.tsx

@@ -45,6 +45,7 @@ export default function ConsentManagementPage() {
     savingTemplateId, savingProcessId,
     saveApiEmailTemplate, saveApiGdprProcess,
     loadApiEmailTemplates,
+    submitVersionForReview, approveVersion, rejectVersion, publishVersion,
     authToken, setAuthToken,
   } = useConsentData(activeTab, selectedDocument)
 
@@ -128,6 +129,10 @@ export default function ConsentManagementPage() {
               versions={versions}
               selectedDocument={selectedDocument}
               setSelectedDocument={setSelectedDocument}
+              onSubmitReview={submitVersionForReview}
+              onApprove={approveVersion}
+              onReject={rejectVersion}
+              onPublish={publishVersion}
             />
           )}