Fix knowledge base crash

web/services/backendApi.ts

@@ -527,6 +527,11 @@ export const fetchKnowledgeBases = async (): Promise<KnowledgeBase[]> => {
   return list.map((item) => mapKnowledgeBase(item));
 };
 
+export const fetchKnowledgeBaseById = async (kbId: string): Promise<KnowledgeBase> => {
+  const response = await apiRequest<AnyRecord>(`/knowledge/bases/${kbId}`);
+  return mapKnowledgeBase(response);
+};
+
 export const createKnowledgeBase = async (data: {
   name: string;
   description?: string;