feat: Katalogverwaltung ins Compliance SDK integriert (17 Kataloge)

Bestehende Catalog-Manager-Komponenten in SDK-Routes eingebunden:
- SDKState + Reducer um customCatalogs CRUD erweitert
- Neue Route /sdk/catalog-manager mit CatalogManagerContent
- Sidebar-Link "Kataloge" mit Database-Icon

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

admin-compliance/lib/sdk/context.tsx

@@ -113,6 +113,9 @@ const initialState: SDKState = {
   securityIssues: [],
   securityBacklog: [],
 
+  // Catalog Manager
+  customCatalogs: {},
+
   // UI State
   commandBarHistory: [],
   recentSearches: [],
@@ -433,6 +436,41 @@ function sdkReducer(state: SDKState, action: ExtendedSDKAction): SDKState {
         preferences: { ...state.preferences, ...action.payload },
       })
 
+    case 'ADD_CUSTOM_CATALOG_ENTRY': {
+      const entry = action.payload
+      const existing = state.customCatalogs[entry.catalogId] || []
+      return updateState({
+        customCatalogs: {
+          ...state.customCatalogs,
+          [entry.catalogId]: [...existing, entry],
+        },
+      })
+    }
+
+    case 'UPDATE_CUSTOM_CATALOG_ENTRY': {
+      const { catalogId, entryId, data } = action.payload
+      const entries = state.customCatalogs[catalogId] || []
+      return updateState({
+        customCatalogs: {
+          ...state.customCatalogs,
+          [catalogId]: entries.map(e =>
+            e.id === entryId ? { ...e, data: { ...e.data, ...data }, updatedAt: new Date().toISOString() } : e
+          ),
+        },
+      })
+    }
+
+    case 'DELETE_CUSTOM_CATALOG_ENTRY': {
+      const { catalogId, entryId } = action.payload
+      const items = state.customCatalogs[catalogId] || []
+      return updateState({
+        customCatalogs: {
+          ...state.customCatalogs,
+          [catalogId]: items.filter(e => e.id !== entryId),
+        },
+      })
+    }
+
     case 'RESET_STATE':
       return { ...initialState, lastModified: new Date() }