fix(admin-v2): Restore HEAD SDK files for compatibility with new pages

Restore the SDK context, types, and component files to the HEAD version
since newer pages (company-profile, import) depend on these API changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-v2/components/sdk/CommandBar/CommandBar.tsx

@@ -102,11 +102,11 @@ export function CommandBar({ onClose }: CommandBarProps) {
       {
         id: 'action-new-usecase',
         type: 'ACTION',
-        label: 'Neuen Use Case erstellen',
-        description: 'Startet den Use Case Workshop Wizard',
+        label: 'Neuen Anwendungsfall erstellen',
+        description: 'Startet die Anwendungsfall-Erfassung',
         icon: icons.action,
         action: () => {
-          goToStep('use-case-workshop')
+          goToStep('use-case-assessment')
           onClose()
         },
       },