实现知识库两级分类树与完整 CRUD

支持父子分类、展开侧栏与改删校验；选中父分类可筛子级条目；对齐左右顶栏并更新种子树形数据。

web/src/services/api.ts

@@ -39,7 +39,10 @@ export interface Customer {
 
 export interface KnowledgeCategory {
   id: number; tenant_id: number; parent_id: number | null; name: string
+  /** 本分类直属条目数 */
   entry_count?: number
+  /** 含子分类汇总 */
+  total_count?: number
 }
 
 export interface KnowledgeEntry {
@@ -185,7 +188,11 @@ export const deleteCustomer = (id: number) => del(`/customers/${id}`)
 // Knowledge
 export const getKnowledgeCategories = () =>
   get<{ list: KnowledgeCategory[]; total_entries: number }>('/knowledge/categories')
-export const createKnowledgeCategory = (data: { name: string; parent_id?: number | null }) => post<KnowledgeCategory>('/knowledge/categories', data)
+export const createKnowledgeCategory = (data: { name: string; parent_id?: number | null }) =>
+  post<KnowledgeCategory>('/knowledge/categories', data)
+export const updateKnowledgeCategory = (id: number, data: { name: string; parent_id?: number | null }) =>
+  put<KnowledgeCategory>(`/knowledge/categories/${id}`, data)
+export const deleteKnowledgeCategory = (id: number) => del(`/knowledge/categories/${id}`)
 export const getKnowledgeEntries = (params?: {
   category_id?: string
   search?: string