refactor: improve db ops visibility and split runtime helpers

docs/NEXT_SESSION_CHECKPOINT.md

@@ -109,7 +109,7 @@
   - [incoming-files/served/ledger/index.html](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/incoming-files/served/ledger/index.html)
 - `/integrations/mh`:
   - [incoming-files/served/mh.html](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/incoming-files/served/mh.html)
-- `/admin/db-status`:
+- `/db-status.html`:
   - [incoming-files/served/db-status/index.html](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/incoming-files/served/db-status/index.html)
 
 ## Cross Checks Last Confirmed
@@ -153,6 +153,6 @@
 - 먼저 [WORK_RULEBOOK.md](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/docs/WORK_RULEBOOK.md), [NEXT_SESSION_CHECKPOINT.md](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/docs/NEXT_SESSION_CHECKPOINT.md), [architecture/8081_SERVING_MAP.md](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/docs/architecture/8081_SERVING_MAP.md) 확인
 - 디자인 수정이면 [frontend/public/design-tokens.css](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/frontend/public/design-tokens.css), [frontend/public/design-patterns.css](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/frontend/public/design-patterns.css), [architecture/DESIGN_SSOT.md](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/docs/architecture/DESIGN_SSOT.md) 먼저 확인
 - 현재 구조 독립화 기준 이슈는 `#21`
-- `#2` 기준 DB 상태 확인은 `/api/admin/db-status` 또는 허브의 `DB 상태` 탭을 먼저 본다.
+- `#2` 기준 DB 상태 확인은 `/api/admin/db-status` 또는 허브의 `DB 상태` 탭(`/db-status.html`)을 먼저 본다.
 - DB 테이블 유지/주의/원본·추적/정리 후보 분류는 [architecture/DB_TABLE_CATALOG.md](/home/hyunho/projects/mh-dashboard-organization/.dev-worktree-8081/docs/architecture/DB_TABLE_CATALOG.md) 기준으로 본다.
 - 작업 전 `git status`, dev 컨테이너 상태, `/api/health`, `/legacy/organization`, `/integrations/payment`, `/integrations/ledger`, `/integrations/mh`, `/api/admin/db-status`를 먼저 확인