fix(ui): [UI7-2] 统一全局 Design Tokens，移除冗余字体，修复异常色值引用

client/src/pages/user-management/CreateUserDialog.tsx

@@ -167,7 +167,7 @@ export function CreateUserDialog({
             <select
               id="departmentId"
               data-testid="users-create-department"
-              className="h-11 w-full rounded-lg border border-slate-300 bg-white px-3 py-2 text-sm"
+              className="h-11 w-full rounded-lg border border-zinc-300 bg-white px-3 py-2 text-sm"
               value={departmentId}
               onChange={(event) => setDepartmentId(event.target.value)}
             >
@@ -187,7 +187,7 @@ export function CreateUserDialog({
             <select
               id="directManagerId"
               data-testid="users-create-direct-manager"
-              className="h-11 w-full rounded-lg border border-slate-300 bg-white px-3 py-2 text-sm"
+              className="h-11 w-full rounded-lg border border-zinc-300 bg-white px-3 py-2 text-sm"
               value={directManagerId}
               onChange={(event) => setDirectManagerId(event.target.value)}
             >