chore: add temporary menu debug diagnostics

Show current lg_idx and resolved menu type values on admin menu page when debug=1 to diagnose empty menu rendering.

Made-with: Cursor

app/Controllers/Admin/Menu.php

@@ -32,6 +32,7 @@ class Menu extends BaseController
         $types = $this->typeModel->orderBy('mt_sort', 'ASC')->findAll();
         $requestedMtIdx = (int) ($this->request->getGet('mt_idx') ?? 0);
         $mtIdx = $this->resolveMtIdx($requestedMtIdx, $types);
+        $debugMode = $this->request->getGet('debug') === '1';
         $list = $mtIdx > 0 ? $this->menuModel->getAllByType($mtIdx, $lgIdx) : [];
 
         // 현재 지자체에 메뉴가 없으면, mt_idx별로 기본 지자체(lg_idx=1)의 메뉴를 한 번 복사한다.
@@ -56,6 +57,14 @@ class Menu extends BaseController
                 'mtCode'     => $currentType->mt_code ?? '',
                 'list'       => $list,
                 'levelNames' => config('Roles')->levelNames,
+                'debug_mode' => $debugMode,
+                'debug_info' => [
+                    'lg_idx'           => $lgIdx,
+                    'requested_mt_idx' => $requestedMtIdx,
+                    'resolved_mt_idx'  => $mtIdx,
+                    'resolved_mt_code' => (string) ($currentType->mt_code ?? ''),
+                    'list_count'       => count($list),
+                ],
             ]),
         ]);
     }