feat(720-1): 단가산출 · 일위대가 층 단추 = 저장 안 한 고침 물음 뒤 그 층 나무 + 상세 목록표

- 낡은 시험 test_m02_precombo_scope 층 단추 줄 글 대조를 새 꼴로(옛 go = 나무만)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts

@@ -244,8 +244,11 @@ export async function renderM02MasterTemplate(root: HTMLElement): Promise<Mounte
       user,
       active: { root: pre.root, owner: pre.owner },
       company,
-      go: (next) => setPre(next),
-      // 켜진 단추 다시 누름 = 그 층 목록표(생성 · 복사 · 삭제)
+      // 다른 층 = 저장 안 한 고침 물음 → 그 층 나무 + 목록표(720-1) · 켜진 단추 다시 누름 = 목록표
+      go: (next) =>
+        void main
+          .confirmLeave()
+          .then((ok) => ok && (setPre(next), void main.open(precomboList(pre)))),
       reselect: () =>
         void main.confirmLeave().then((ok) => ok && void main.open(precomboList(pre))),
     });
@@ -256,7 +259,14 @@ export async function renderM02MasterTemplate(root: HTMLElement): Promise<Mounte
       user,
       active: { root: sk.root, owner: sk.owner },
       company,
-      go: (next) => ((sk = preScope(next)), void side.refreshSangeun()),
+      go: (next) =>
+        void main
+          .confirmLeave()
+          .then(
+            (ok) =>
+              ok &&
+              ((sk = preScope(next)), void side.refreshSangeun(), void main.open(sangeunList(sk))),
+          ),
       reselect: () => void main.confirmLeave().then((ok) => ok && void main.open(sangeunList(sk))),
     });
   const side = buildSide({