feat(시간 표시): 화면 시각 = 보는 사람 PC 시간대 · 서버 응답 UTC Z · 서버가 만드는 파일 글 = 한국 시각 (PLAN 593-1 · 요구 456)

- 공용 `common_util_time.ts`(날짜 · 시각 · 오늘/어제/n 일 전 · Z 없는 옛 글 = UTC) · `common_util_time.py`(UTC Z 글 · 한국 시각)
- 화면 바꿈: 대시보드(프로젝트 · 휴지통 · 시스템 로그 · 보관함 · 홈 카드) · B09 굳힘 · E03 · E05 · E07 · M02 호표 이력 · 목록 고친 날 · 지난 판
- 서버: 응답 datetime = UTC + Z(main.py) · 로컬 시각 저장 → UTC · 대시보드 경과일 = UTC 기준 · 엑셀 날짜 · 파일 이름 = 한국 시각
- 시험: test_593_time(서울 · 뉴욕 · Z 없는 옛 글 · 서버 글)

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

B09_Estimation/B09_Estimation_Calc_Total.py

@@ -24,10 +24,10 @@
 
 from __future__ import annotations
 
-from datetime import date
 from typing import Any
 
 from B09_Estimation.B09_Estimation_Calc_Base import num, rounddown, roundup, total
+from common_util.common_util_time import kst_today
 
 #: 제비율 줄 (키, 이름, M01 요율 후보 키, 산식 글) — 엑셀 총괄 49~58 차례 · 나.소계에 듦
 RATE_LINES: tuple[tuple[str, str, str, str], ...] = (
@@ -155,7 +155,7 @@ def compute_total(
             "target": target,
             "price": num(est.get("estimated_price")),
             "days": num(est.get("duration_days")),
-            "year": year or date.today().year,
+            "year": year or kst_today().year,
             "env": est.get("environment_kind"),
         },
     )

B09_Estimation/B09_Estimation_Prices.py

@@ -16,11 +16,11 @@
 from __future__ import annotations
 
 import json
-from datetime import datetime
 from decimal import Decimal
 from typing import Any
 
 from B08_Quantity.B08_Quantity_Material_Calc import DEDUCT_KEY
+from common_util.common_util_time import utc_now_text
 from M01_MasterData import M01_MasterData_Store as m01
 
 #: 운전사 시간 노임 계수 표(건설품셈 공통 8-1-3 · 건협기술-2230)
@@ -194,7 +194,7 @@ def refresh_book(keys: list[str], book: dict[str, Any] | None = None) -> dict[st
     old = (book or {}).get("rows") or {}
     rows.update({key: old[key] for key in want["missing"] if key in old})
     return {
-        "made": datetime.now().isoformat(timespec="seconds"),
+        "made": utc_now_text(),
         "rows": rows,
         "driver_factor": driver_factor(master),
         "fx": fx_inputs(master),

B09_Estimation/B09_Estimation_Router_Quotes.py

@@ -12,7 +12,6 @@
 from __future__ import annotations
 
 import asyncio
-from datetime import datetime
 from pathlib import Path
 from typing import Any
 from uuid import UUID
@@ -23,6 +22,7 @@ from fastapi.responses import FileResponse
 from B03_FileInput.B03_FileInput_Engine import save_upload_stream
 from B08_Quantity.B08_Quantity_Router_Hydro import _project_root
 from B09_Estimation import B09_Estimation_Store as store
+from common_util.common_util_time import utc_from_timestamp
 
 router = APIRouter()
 PATH = "/{project_id}/estimation/quotes"
@@ -33,7 +33,7 @@ def _listing(folder: Path) -> list[dict[str, Any]]:
         {
             "name": f.name,
             "size": f.stat().st_size,
-            "at": datetime.fromtimestamp(f.stat().st_mtime).isoformat(timespec="seconds"),
+            "at": utc_from_timestamp(f.stat().st_mtime),
         }
         for f in store.quote_files(folder)
     ]

B09_Estimation/B09_Estimation_UI_Check.ts

@@ -11,6 +11,7 @@ import { attachHoverInfo } from "@ui/ui_template_hover_info";
 import { createBadge } from "@ui/ui_template_badge";
 import { createText } from "@ui/ui_template_text";
 import type { Row } from "./B09_Estimation_Calc_Base";
+import { dateTimeText } from "../common_util/common_util_time";
 import { tabName, type Link, type TabId } from "./B09_Estimation_UI_Tabs";
 
 export interface CheckItem {
@@ -38,7 +39,7 @@ export function checkItems(sheets: Row, payload: Row): { items: CheckItem[]; not
 /** [업데이트] 호버 글 — 굳힌 시각 + 낡은 까닭 */
 export function refreshTip(payload: Row | null): string {
   const made = payload?.book?.made;
-  const when = made ? `단가 굳힘 ${String(made).replace("T", " ")}` : "단가 아직 안 굳힘";
+  const when = made ? `단가 굳힘 ${dateTimeText(String(made))}` : "단가 아직 안 굳힘";
   const stale = payload?.stale;
   return `${when} · 누르면 지금 M01 값으로 새로 굳힘${stale ? ` · 업데이트 필요 — ${stale}` : ""}`;
 }

B09_Estimation/B09_Estimation_UI_Tabs_Base.ts

@@ -18,6 +18,7 @@
 import type { MapContextMenuItem } from "@ui/ui_template_context_menu";
 import type { DataRow } from "@ui/ui_template_data_table";
 import { SOURCES, type Row } from "./B09_Estimation_Calc_Base";
+import { dateText } from "../common_util/common_util_time";
 import { openQuotes } from "./B09_Estimation_UI_Tabs_Base_Quote";
 import {
   blockLevel,
@@ -64,7 +65,7 @@ export const buildExpense: TabBuild = ({ sheets, payload }) =>
   );
 
 function madeText(payload: Row): string {
-  return payload.book?.made ? `${String(payload.book.made).slice(0, 10)} 굳힘` : "아직 안 굳힘";
+  return payload.book?.made ? `${dateText(String(payload.book.made))} 굳힘` : "아직 안 굳힘";
 }
 
 export const buildBasis: TabBuild = ({ sheets }): TabTable => {

B09_Estimation/draft/B09_Draft_Schedule_Source.py

@@ -25,6 +25,7 @@ from typing import Any
 from B09_Estimation.B09_Estimation_Calc_Base import num
 from B09_Estimation.B09_Estimation_Summary import expand, hopyo_lines
 from B09_Estimation.draft.B09_Draft_Schedule_Calc import HOLIDAY_KINDS, compute_schedule
+from common_util.common_util_time import kst_today
 
 HOLIDAYS = Path(__file__).with_name("B09_Draft_Schedule_Holidays.json")
 CLIMATE = {
@@ -116,7 +117,7 @@ def holiday_table() -> dict[str, list[list[str]]]:
 
 
 def schedule_inputs(sheets: dict[str, Any], today: datetime.date | None = None) -> dict[str, Any]:
-    today = today or datetime.date.today()
+    today = today or kst_today()
     return {
         "units": unit_resources(sheets),
         "holidays": holiday_table(),