1.优化渠道删除失败问题

server/plugin/saiadmin/app/controller/system/SystemDeptController.php

@@ -107,11 +107,12 @@ class SystemDeptController extends BaseController
     #[Permission('渠道数据删除','core:dept:destroy')]
     public function destroy(Request $request) : Response
     {
-        $ids = $request->post('ids', '');
+        // DELETE + JSON body 须用 input()；post() 仅表单 POST 有效（与 SystemUserController 一致）
+        $ids = $request->input('ids', '');
         if (empty($ids)) {
             return $this->fail('please select data to delete');
         }
-        $deleteTables = $request->post('delete_tables', []);
+        $deleteTables = $request->input('delete_tables', []);
         if (!is_array($deleteTables)) {
             $deleteTables = [];
         }