chore(sync): 배포된 main 변경을 dev에 백머지

src/components/rooms/RoomTripEditDialog.test.tsx

@@ -97,11 +97,12 @@ it("uses the existing trimmed mutation payload and closes only after save succee
   expect(dialog()).toBeNull();
 });
 
-it("retains the original date floor, date ordering and required destination validation", async () => {
+it("allows an earlier start date and keeps date ordering and required destination validation", async () => {
   await open();
+  // 저장된 시작일보다 이른 날짜로도 시작일을 앞당길 수 있다
   await pickDates("start", "2026-10-09");
-  expect(dateField("start").getAttribute("aria-label")).toContain("2026년 10월 10일");
-  expect(button("적용하기", dialog()!).disabled).toBe(true);
+  expect(dateField("start").getAttribute("aria-label")).toContain("2026년 10월 9일");
+  expect(button("적용하기", dialog()!).disabled).toBe(false);
   // 종료 칸에서 시작일보다 이른 날짜를 고르면 기간을 거꾸로 만들지 않고 새 시작일이 되며, 종료일은 그대로다
   await pickDates("start", "2026-10-11", "2026-10-12");
   await pickDates("end", "2026-10-10");

src/components/rooms/RoomTripEditFields.tsx

@@ -11,12 +11,10 @@ import {
 } from "@/lib/plan/schedulePolicy";
 import {
   isTripDateRangeInvalid,
-  isTripStartBeforeMin,
   ROOM_TRIP_TITLE_MAX_LENGTH,
   TRIP_DATE_RANGE_INVALID_MESSAGE,
   TRIP_DESTINATION_MAX_LENGTH,
   TRIP_DESTINATIONS_MAX_COUNT,
-  TRIP_START_BEFORE_MIN_MESSAGE,
   type TripFormValues,
 } from "@/lib/rooms/trip-form";
 import { cn } from "@/lib/utils";
@@ -29,7 +27,6 @@ type Props = {
   idPrefix: string;
   values: TripFormValues;
   readOnly?: boolean;
-  startDateMin?: string;
   onTitleChange: (value: string) => void;
   onDestinationsChange: (next: string[]) => void;
   onStartDateChange: (value: string) => void;
@@ -53,7 +50,6 @@ export function RoomTripEditFields({
   idPrefix,
   values,
   readOnly = false,
-  startDateMin,
   onTitleChange,
   onDestinationsChange,
   onStartDateChange,
@@ -64,11 +60,9 @@ export function RoomTripEditFields({
   const [destinationWarning, setDestinationWarning] = useState<string | null>(null);
   const destinationsFull = destinations.length >= TRIP_DESTINATIONS_MAX_COUNT;
   const dateRangeInvalid = isTripDateRangeInvalid(startDate, endDate);
-  const startBeforeMin = startDateMin != null && isTripStartBeforeMin(startDate, startDateMin);
   const scheduleDayLimitExceeded = isTripScheduleDayLimitExceeded(startDate, endDate);
   let dateMessage = null;
-  if (startBeforeMin) dateMessage = TRIP_START_BEFORE_MIN_MESSAGE;
-  else if (dateRangeInvalid) dateMessage = TRIP_DATE_RANGE_INVALID_MESSAGE;
+  if (dateRangeInvalid) dateMessage = TRIP_DATE_RANGE_INVALID_MESSAGE;
   else if (scheduleDayLimitExceeded) dateMessage = TRIP_SCHEDULE_DAY_LIMIT_MESSAGE;
 
   function addDestination(place: { description: string; placeId: string } | null) {
@@ -168,7 +162,6 @@ export function RoomTripEditFields({
         <DateRangeField
           idPrefix={idPrefix}
           value={{ start: startDate, end: endDate }}
-          min={startDateMin}
           popupOnly
           onChange={(next) => {
             onStartDateChange(next.start);

src/components/rooms/RoomTripEditForm.test.tsx

@@ -22,7 +22,7 @@ vi.mock("./TripDateShrinkConfirmModal", () => ({
   TripDateShrinkConfirmModal: () => <div data-confirm />,
 }));
 Object.assign(globalThis, { IS_REACT_ACT_ENVIRONMENT: true });
-it("preserves drafts and original date floor on same-room refresh; reopening and room switch reset correctly", async () => {
+it("preserves drafts on same-room refresh; reopening and room switch reset correctly", async () => {
   const container = document.createElement("div");
   const root = createRoot(container);
   const room = {
@@ -50,9 +50,7 @@ it("preserves drafts and original date floor on same-room refresh; reopening and
   await render(room);
   expect(state.fields!.values.startDate).toBe("2026-10-10");
   expect(state.fields!.values.endDate).toBe("2026-10-12");
-  expect(state.fields!.startDateMin).toBe("2026-10-10");
   await render({ ...room, startDate: "2026-10-11" });
-  expect(state.fields!.startDateMin).toBe("2026-10-10");
   await act(async () => state.fields!.onEndDateChange("2026-10-11"));
   await act(async () => container.querySelector<HTMLButtonElement>("button")!.click());
   expect(container.querySelector("[data-confirm]")).not.toBeNull();
@@ -64,7 +62,6 @@ it("preserves drafts and original date floor on same-room refresh; reopening and
     endDate: "2026-11-12",
   });
   expect(state.fields!.values.title).toBe("B");
-  expect(state.fields!.startDateMin).toBe("2026-11-10");
   expect(container.querySelector("[data-confirm]")).toBeNull();
   expect(state.update).not.toHaveBeenCalled();
   await act(async () => root.unmount());
@@ -109,6 +106,24 @@ it("keeps the values from when it opened while the server changes and saves the
   await act(async () => second.unmount());
 });
 
+it("allows moving the start date earlier than the saved start date", async () => {
+  state.update.mockClear();
+  const container = document.createElement("div");
+  const root = createRoot(container);
+  const room = { id: "r", title: "A", destinations: ["서울"], startDate: "2027-01-04", endDate: "2027-01-11" };
+  await act(async () => root.render(<RoomTripEditForm room={room} />));
+  expect("startDateMin" in state.fields!).toBe(false);
+  await act(async () => state.fields!.onStartDateChange("2027-01-02"));
+  await act(async () => container.querySelector<HTMLButtonElement>("button")!.click());
+  expect(state.update).toHaveBeenCalledWith(
+    expect.objectContaining({
+      data: expect.objectContaining({ startDate: "2027-01-02", endDate: "2027-01-11" }),
+    }),
+    expect.anything(),
+  );
+  await act(async () => root.unmount());
+});
+
 it("does not submit draft edits and submits once for rapid apply clicks", async () => {
   state.update.mockClear();
   const container = document.createElement("div");

src/components/rooms/RoomTripEditForm.tsx

@@ -18,7 +18,6 @@ import {
   areDestinationsEqual,
   isTripDateRangeInvalid,
   isTripDestinationsValid,
-  isTripStartBeforeMin,
   ROOM_TRIP_TITLE_MAX_LENGTH,
   toTripFormValues,
   type RoomTripFormSource,
@@ -50,9 +49,6 @@ function RoomTripEditSession({ room, readOnly = false, onSaved }: Props) {
   const [endDate, setEndDate] = useState(opened.endDate);
   const [shrinkConfirmOpen, setShrinkConfirmOpen] = useState(false);
 
-  // Keep the original date floor throughout this room's edit session.
-  const [baselineStartYmd] = useState(opened.startDate);
-
   const { data: schedules } = useRoomSchedules(room.id);
   const { mutate: updateRoom, isPending, error } = useUpdateRoom();
 
@@ -76,7 +72,6 @@ function RoomTripEditSession({ room, readOnly = false, onSaved }: Props) {
     startDate &&
     endDate &&
     !dateRangeInvalid &&
-    !isTripStartBeforeMin(startDate, baselineStartYmd) &&
     !scheduleDayLimitExceeded &&
     !isPending &&
     isDirty;
@@ -136,7 +131,6 @@ function RoomTripEditSession({ room, readOnly = false, onSaved }: Props) {
         idPrefix={`trip-${room.id}`}
         values={readOnly ? latest : { title, destinations, startDate, endDate }}
         readOnly={readOnly}
-        startDateMin={baselineStartYmd || undefined}
         onTitleChange={setTitle}
         onDestinationsChange={setDestinations}
         onStartDateChange={setStartDate}