Fix: 排序链接改用request()辅助函数，修复Blade模板中

resources/views/admin/users/index.blade.php

@@ -26,10 +26,10 @@
                 /**
                  * 生成排序链接：点击同一列切换方向，点击新列默认倒序
                  */
-                $sortLink = function (string $col) use ($sortBy, $sortDir, $request): string {
+                $sortLink = function (string $col) use ($sortBy, $sortDir): string {
                     $newDir = $sortBy === $col && $sortDir === 'desc' ? 'asc' : 'desc';
                     $qs = http_build_query(
-                        array_merge($request->except(['sort_by', 'sort_dir', 'page']), [
+                        array_merge(request()->except(['sort_by', 'sort_dir', 'page']), [
                             'sort_by' => $col,
                             'sort_dir' => $newDir,
                         ]),