feat: 맞춤 집계표 — 기간·품목구분·컬럼 선택 + 제목·계정별 프리셋 저장/인쇄

- 한 화면에서 기간·품목구분(봉투/음식물/폐기물)·집계방식·표시컬럼 선택, 제목 지정 후 조회/인쇄
- 컬럼 13종 선택, 상세/품목별 집계 지원, 실판매(bag_sale) 기준
- 계정별(mb_idx) 프리셋 저장/불러오기/삭제 (report_preset 테이블)
- report_preset 테이블 없으면 프리셋만 비활성, 리포트는 정상 동작

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/Config/Routes.php

@@ -211,6 +211,9 @@ $routes->group('bag', ['filter' => 'adminAuth'], static function ($routes): void
     $routes->post('packaging-units/manage/delete/(:num)', 'Admin\PackagingUnit::delete/$1');
     $routes->get('packaging-units/manage/history/(:num)', 'Admin\PackagingUnit::history/$1');
 
+    $routes->get('reports/custom', 'Admin\SalesReport::customReport');
+    $routes->post('reports/custom/preset/save', 'Admin\SalesReport::customReportPresetSave');
+    $routes->post('reports/custom/preset/delete', 'Admin\SalesReport::customReportPresetDelete');
     $routes->get('reports/sales-ledger', 'Admin\SalesReport::salesLedger');
     $routes->get('reports/daily-summary', 'Admin\SalesReport::dailySummary');
     $routes->get('reports/period-sales', 'Admin\SalesReport::periodSales');