feat: Document Workflow wiring + Email system consolidation

Document Workflow:
- "Als Version speichern" button in Document Generator preview
- Creates document + version via /legal-documents/documents API
- Saved documents appear in /sdk/workflow module
- Status indicator (saving/saved/error) in toolbar

Email Consolidation:
- consent-management Emails tab now redirects to /sdk/email-templates
- Single source of truth for all email templates
- Old tab replaced with redirect card explaining the change

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

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

@@ -141,16 +141,24 @@ export default function ConsentManagementPage() {
           )}
 
           {activeTab === 'emails' && (
-            <EmailsTab
-              apiEmailTemplates={apiEmailTemplates}
-              templatesLoading={templatesLoading}
-              savingTemplateId={savingTemplateId}
-              savedTemplates={savedTemplates}
-              setShowCreateTemplateModal={setShowCreateTemplateModal}
-              saveApiEmailTemplate={saveApiEmailTemplate}
-              setPreviewTemplate={setPreviewTemplate}
-              setEditingTemplate={setEditingTemplate}
-            />
+            <div className="bg-purple-50 border border-purple-200 rounded-xl p-8 text-center">
+              <div className="w-14 h-14 mx-auto mb-4 bg-purple-100 rounded-xl flex items-center justify-center">
+                <svg className="w-7 h-7 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 8l7.89 5.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                </svg>
+              </div>
+              <h3 className="font-semibold text-gray-900 mb-2">E-Mail-Templates wurden zentralisiert</h3>
+              <p className="text-sm text-gray-600 mb-4">
+                Alle E-Mail-Vorlagen (DSR, Consent, Breach, Training, etc.) werden jetzt zentral
+                im E-Mail-Template-Modul verwaltet — mit Versionierung, Freigabe-Workflow und Audit-Log.
+              </p>
+              <button
+                onClick={() => router.push('/sdk/email-templates')}
+                className="px-6 py-2.5 bg-purple-600 text-white text-sm font-medium rounded-lg hover:bg-purple-700 transition-colors"
+              >
+                Zu E-Mail-Templates
+              </button>
+            </div>
           )}
 
           {activeTab === 'gdpr' && (