Fix: Add missing Category interface to audit-workspace types

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

website/app/admin/compliance/audit-workspace/types.ts

@@ -54,6 +54,12 @@ export interface AIInterpretation {
   error?: string
 }
 
+export interface Category {
+  id: string
+  name: string
+  requirement_count: number
+}
+
 export const IMPLEMENTATION_STATUS = {
   not_started: { label: 'Nicht gestartet', color: 'bg-slate-400' },
   in_progress: { label: 'In Arbeit', color: 'bg-yellow-500' },