fix: 신규 오픈 시각과 게임 시계 원점을 정확히 보존

app/game-engine/src/scenario/scenarioSeeder.ts

@@ -242,20 +242,23 @@ export const seedScenarioToDatabase = async (options: ScenarioSeedOptions): Prom
             : (options.tickSeconds ?? DEFAULT_TICK_SECONDS);
     const turnTermMinutes = Math.max(1, Math.round(tickSeconds / 60));
     const sync = install?.sync ?? false;
-    const startState = resolveStartState(scenario.startYear ?? null, now, turnTermMinutes, sync);
     const gameClockMode = options.gameClockMode ?? 'realtime';
     // A realtime season prepared before its formal opening must not consume
     // wall time while users are only allowed to edit reserved commands.
     const wallNow = gameClockMode === 'manual' ? now : (options.wallNow ?? now);
     const requestedOpening = install?.openAt && install.openAt.getTime() > wallNow.getTime() ? install.openAt : wallNow;
-    const openingFloor = cutTurn(requestedOpening, turnTermMinutes);
-    const initialClockWallAnchor =
-        gameClockMode === 'manual'
-            ? requestedOpening
-            : new Date(openingFloor.getTime() + (openingFloor < requestedOpening ? tickSeconds * 1_000 : 0));
+    // Opening is an exact wall instant, independent of the calendar's 12-turn
+    // grouping. Only the initial year/month uses the legacy calendar alignment.
+    const initialClockWallAnchor = requestedOpening;
+    const startState = resolveStartState(
+        scenario.startYear ?? null,
+        gameClockMode === 'manual' ? now : requestedOpening,
+        turnTermMinutes,
+        sync
+    );
     const initialClockPhase = resolveInitialClockPhase(gameClockMode, wallNow, initialClockWallAnchor);
     const initialClock = new GameClock({
-        baseTime: startState.startTime,
+        baseTime: gameClockMode === 'manual' ? startState.startTime : initialClockWallAnchor,
         tick: 0,
         mode: gameClockMode,
         wallAnchor: initialClockWallAnchor,
@@ -324,9 +327,9 @@ export const seedScenarioToDatabase = async (options: ScenarioSeedOptions): Prom
         // monthly pre-handler recalculates the same value at each boundary.
         develcost: (startState.currentYear - (scenario.startYear ?? startState.currentYear) + 10) * 2,
         starttime: formatDateTime(startState.startTime),
-        turntime: formatDateTime(now),
+        turntime: formatDateTime(gameClockMode === 'manual' ? now : initialClock.baseTime),
         opentime: formatDateTime(initialClockWallAnchor),
-        lastTurnTime: formatDateTime(now),
+        lastTurnTime: formatDateTime(gameClockMode === 'manual' ? now : initialClock.baseTime),
     };
 
     const firstGameIdx =

app/game-engine/test/scenarioSeeder.test.ts

@@ -1,3 +1,4 @@
+import { GameClock } from '@sammo-ts/common';
 import { createGamePostgresConnector } from '@sammo-ts/infra';
 import { describe, expect, test } from 'vitest';
 import { resolveDatabaseUrl } from '../src/scenario/databaseUrl.js';
@@ -94,6 +95,99 @@ const canRun = await canConnectToDatabase(databaseUrl);
 const describeDb = describe.runIf(canRun);
 
 describeDb('scenario database seed', () => {
+    test.each([
+        { sync: true, turnMinutes: 60, hour: 10, month: 10, yearOffset: -1 },
+        { sync: true, turnMinutes: 60, hour: 1, month: 1, yearOffset: 0 },
+        { sync: true, turnMinutes: 60, hour: 13, month: 1, yearOffset: 0 },
+        { sync: false, turnMinutes: 60, hour: 10, month: 1, yearOffset: 0 },
+        { sync: true, turnMinutes: 5, hour: 10, month: 7, yearOffset: -1 },
+    ])(
+        'preserves exact opening and its calendar: $sync / $hour / $turnMinutes',
+        async ({ sync, hour, month, yearOffset, turnMinutes }) => {
+            const openAt = new Date(2030, 0, 1, hour, 30, 15, 123);
+            const preopenAt = new Date(openAt.getTime() - 90 * 60_000);
+            const scenario = await loadScenarioDefinitionById(scenarioId);
+            await seedScenarioToDatabase({
+                scenarioId,
+                databaseUrl,
+                resetTables: true,
+                now: preopenAt,
+                wallNow: preopenAt,
+                installOptions: { sync, turnTermMinutes: turnMinutes, preopenAt, openAt },
+            });
+            const connector = createGamePostgresConnector({ url: databaseUrl });
+            try {
+                await connector.connect();
+                const world = await connector.prisma.worldState.findFirstOrThrow();
+                expect(world).toMatchObject({
+                    currentYear: (scenario.startYear ?? 0) + yearOffset,
+                    currentMonth: month,
+                    clockBaseTime: openAt,
+                    clockWallAnchor: openAt,
+                    clockTick: 0n,
+                    lastTurnTick: 0n,
+                    clockPhase: 'PREOPEN',
+                });
+                const clock = new GameClock({
+                    baseTime: world.clockBaseTime!,
+                    wallAnchor: world.clockWallAnchor!,
+                    tick: Number(world.clockTick),
+                    mode: 'realtime',
+                    phase: 'PREOPEN',
+                    turnSeconds: world.tickSeconds,
+                });
+                expect(clock.nowTick(new Date(openAt.getTime() - 1))).toBeLessThan(0);
+                expect(clock.nowTick(openAt)).toBe(0);
+                expect(clock.tickToDate(clock.nowTick(preopenAt))).toEqual(preopenAt);
+                const afterOpening = new Date(openAt.getTime() + turnMinutes * 60_000);
+                expect(clock.tickToDate(clock.nowTick(afterOpening))).toEqual(afterOpening);
+                expect(clock.nowTick(afterOpening)).toBe(36_000_000);
+                const generals = await connector.prisma.general.findMany({
+                    select: { turnTick: true, turnTime: true },
+                });
+                expect(generals.length).toBeGreaterThan(0);
+                for (const general of generals) {
+                    expect(general.turnTick).toBeGreaterThanOrEqual(0n);
+                    expect(general.turnTime.getTime()).toBeGreaterThanOrEqual(openAt.getTime());
+                }
+            } finally {
+                await connector.disconnect();
+            }
+        }
+    );
+
+    test.each([false, true])(
+        'starts immediately without rounding when the opening is absent or late: %s',
+        async (late) => {
+            const wallNow = new Date(2030, 0, 1, 10, 30, 15, 123);
+            await seedScenarioToDatabase({
+                scenarioId,
+                databaseUrl,
+                resetTables: true,
+                now: new Date(2030, 0, 1, 1, 0),
+                wallNow,
+                installOptions: {
+                    sync: true,
+                    turnTermMinutes: 60,
+                    openAt: late ? new Date(2030, 0, 1, 9, 0) : null,
+                },
+            });
+            const connector = createGamePostgresConnector({ url: databaseUrl });
+            try {
+                await connector.connect();
+                await expect(connector.prisma.worldState.findFirstOrThrow()).resolves.toMatchObject({
+                    clockBaseTime: wallNow,
+                    clockWallAnchor: wallNow,
+                    clockPhase: 'RUNNING',
+                    clockTick: 0n,
+                    currentMonth: 10,
+                });
+            } finally {
+                await connector.disconnect();
+            }
+        }
+    );
+
     test('persists each blank-land scenario item contract without leaking the shared addon', async () => {
         const readPersistedItemContract = async (targetScenarioId: number) => {
             const { applied } = await seedScenarioToDatabase({

app/gateway-api/test/profileSeedCli.integration.test.ts

@@ -71,7 +71,8 @@ describeDatabase('selected workspace profile seed CLI', () => {
             const world = await connector.prisma.worldState.findFirstOrThrow();
             expect(world).toMatchObject({
                 scenarioCode: '1010',
-                clockWallAnchor: new Date('2036-03-03T02:11:00.000Z'),
+                clockWallAnchor: new Date('2036-03-03T02:10:30.000Z'),
+                clockBaseTime: new Date('2036-03-03T02:10:30.000Z'),
                 clockPhase: 'PREOPEN',
                 meta: {
                     firstGameIdx: 0,

docs/architecture/game-clock-reconciliation.md

@@ -72,9 +72,15 @@ setup. A paused profile is durably suspended during upgrade and stays suspended
 until explicitly resumed. API/worker clock reads require a live ready lease at the read revision;
 RECONCILING remains fenced until the Redis outbox is applied.
 
-Planned realtime opening rounds upward to a turn boundary. The seed CLI passes
-actual wall time separately from the requested game-calendar baseline, and
-Gateway publishes the stored opening anchor for both display and scheduling. Unification wait
+Planned realtime opening preserves the exact requested wall instant, including
+minutes, seconds, and milliseconds. The seed CLI passes actual wall time separately;
+an absent or already elapsed opening starts at the actual seed wall time. Tick zero's
+game-date projection and wall anchor both use that effective opening instant.
+The legacy 12-turn calendar grouping determines only the initial year/month and
+calendar metadata; it must not round opening or offset the displayed clock.
+PREOPEN admission keeps its separately requested instant. Gateway publishes the
+stored opening anchor for both display and scheduling. Existing seasons are not
+rebased by this seed-only change. Unification wait
 uses `TURN_BOUNDARY`, cuts at the completed monthly cursor, and resumes at the
 next normal boundary without replaying the intentional waiting period. An old
 pending unification ledger is upgraded on resume; applied history stays intact.