R38: 完成员工管理筛选与部门树试跑

client/src/api/employees.ts

@@ -101,12 +101,14 @@ export async function fetchEmployees(params: {
   page: number;
   pageSize: number;
   status?: EmployeeStatus;
+  departmentId?: string;
   q?: string;
 }) {
   const search = new URLSearchParams();
   search.set("page", String(params.page));
   search.set("pageSize", String(params.pageSize));
   if (params.status) search.set("status", params.status);
+  if (params.departmentId) search.set("departmentId", params.departmentId);
   if (params.q) search.set("q", params.q);
 
   return apiRequestData<EmployeeListResponse>(`/api/employees?${search.toString()}`);