feat: implement input event system with durable command handling

- Introduced InputEvent model with status tracking (PENDING, PROCESSING, SUCCEEDED, FAILED) and unique request IDs.
- Added DatabaseTurnDaemonTransport for sending commands and handling idempotency.
- Implemented executeInputEvent function to manage input event lifecycle and error handling.
- Created DatabaseTurnDaemonCommandQueue for managing command processing and lease recovery.
- Enhanced turn daemon lifecycle to support atomic command execution and error recovery.
- Added tests for input event atomicity, command queuing, and error handling scenarios.

README.md

@@ -25,6 +25,14 @@
 ## 개발 도구 및 스크립트
 
 - 패키지 매니저: pnpm 워크스페이스
+- 현재 개발 호스트는 `fnm`으로 Node.js와 pnpm을 관리한다. 대화형 zsh가
+  아닌 환경에서 `pnpm`을 찾지 못하면 아래 형태로 실행한다.
+
+    ```sh
+    /home/letrhee/.local/share/fnm/fnm exec --using=default -- pnpm <command>
+    ```
+
+  2026-07-25 확인 기준 default는 Node.js `v24.18.0`, pnpm은 `11.17.0`이다.
 - 초기 개발기간 동안 npm 패키지는 가능한 최신버전을 유지
 - 공통 스크립트
     - `pnpm install`

app/game-api/src/context.ts

@@ -61,6 +61,7 @@ export type InputJsonValue = GamePrisma.InputJsonValue;
 export type DatabaseClient = InfraDatabaseClient;
 
 export interface GameApiContext {
+    requestId?: string;
     db: DatabaseClient;
     redis: RedisConnector['client'];
     turnDaemon: TurnDaemonTransport;
@@ -76,6 +77,7 @@ export interface GameApiContext {
 }
 
 export const createGameApiContext = (options: {
+    requestId?: string;
     db: DatabaseClient;
     redis: RedisConnector['client'];
     turnDaemon: TurnDaemonTransport;
@@ -90,6 +92,7 @@ export const createGameApiContext = (options: {
     gameTokenSecret: string;
 }): GameApiContext => {
     return {
+        requestId: options.requestId,
         db: options.db,
         redis: options.redis,
         turnDaemon: options.turnDaemon,

app/game-api/src/daemon/databaseTransport.ts

@@ -0,0 +1,95 @@
+import { randomUUID } from 'node:crypto';
+
+import type { GamePrisma } from '@sammo-ts/infra';
+
+import type { DatabaseClient } from '../context.js';
+import type { TurnDaemonTransport } from './transport.js';
+import type { TurnDaemonCommand, TurnDaemonCommandResult, TurnDaemonStatus } from './types.js';
+
+const asJson = (value: unknown): GamePrisma.InputJsonValue => value as GamePrisma.InputJsonValue;
+
+const delay = (ms: number): Promise<void> => new Promise((resolve) => setTimeout(resolve, ms));
+const stableJson = (value: unknown): string => {
+    if (Array.isArray(value)) {
+        return `[${value.map(stableJson).join(',')}]`;
+    }
+    if (value && typeof value === 'object') {
+        return `{${Object.entries(value)
+            .sort(([left], [right]) => left.localeCompare(right))
+            .map(([key, entry]) => `${JSON.stringify(key)}:${stableJson(entry)}`)
+            .join(',')}}`;
+    }
+    return JSON.stringify(value) ?? 'null';
+};
+
+export class ConflictingTurnDaemonCommandError extends Error {
+    constructor(readonly requestId: string) {
+        super(`Engine input event ${requestId} already exists with a different payload.`);
+        this.name = 'ConflictingTurnDaemonCommandError';
+    }
+}
+
+export class DatabaseTurnDaemonTransport implements TurnDaemonTransport {
+    constructor(
+        private readonly db: DatabaseClient,
+        private readonly requestTimeoutMs: number
+    ) {}
+
+    async sendCommand(command: TurnDaemonCommand): Promise<string> {
+        const requestId = ('requestId' in command ? command.requestId : undefined) ?? randomUUID();
+        const durableCommand = JSON.parse(JSON.stringify({ ...command, requestId })) as TurnDaemonCommand;
+        try {
+            await this.db.inputEvent.create({
+                data: {
+                    requestId,
+                    target: 'ENGINE',
+                    eventType: command.type,
+                    payload: asJson(durableCommand),
+                },
+            });
+        } catch (error) {
+            const isUniqueConflict =
+                typeof error === 'object' && error !== null && 'code' in error && error.code === 'P2002';
+            if (!isUniqueConflict) {
+                throw error;
+            }
+            const existing = await this.db.inputEvent.findUniqueOrThrow({
+                where: { requestId },
+                select: { eventType: true, payload: true },
+            });
+            if (existing.eventType !== command.type || stableJson(existing.payload) !== stableJson(durableCommand)) {
+                throw new ConflictingTurnDaemonCommandError(requestId);
+            }
+        }
+        return requestId;
+    }
+
+    async requestCommand(command: TurnDaemonCommand, timeoutMs?: number): Promise<TurnDaemonCommandResult | null> {
+        const requestId = await this.sendCommand(command);
+        return this.waitForResult<TurnDaemonCommandResult>(requestId, timeoutMs);
+    }
+
+    async requestStatus(timeoutMs?: number): Promise<TurnDaemonStatus | null> {
+        const requestId = await this.sendCommand({ type: 'getStatus', requestId: randomUUID() });
+        const payload = await this.waitForResult<{ status: TurnDaemonStatus }>(requestId, timeoutMs);
+        return payload?.status ?? null;
+    }
+
+    private async waitForResult<T>(requestId: string, timeoutMs?: number): Promise<T | null> {
+        const deadline = Date.now() + (timeoutMs ?? this.requestTimeoutMs);
+        while (Date.now() < deadline) {
+            const event = await this.db.inputEvent.findUnique({
+                where: { requestId },
+                select: { status: true, result: true },
+            });
+            if (event?.status === 'SUCCEEDED') {
+                return event.result as T;
+            }
+            if (event?.status === 'FAILED') {
+                return null;
+            }
+            await delay(Math.min(50, Math.max(1, deadline - Date.now())));
+        }
+        return null;
+    }
+}

app/game-api/src/daemon/idempotentTransport.ts

@@ -0,0 +1,28 @@
+import type { TurnDaemonTransport } from './transport.js';
+import type { TurnDaemonCommand, TurnDaemonCommandResult, TurnDaemonStatus } from './types.js';
+
+export class IdempotentTurnDaemonTransport implements TurnDaemonTransport {
+    private sequence = 0;
+
+    constructor(
+        private readonly transport: TurnDaemonTransport,
+        private readonly parentRequestId: string
+    ) {}
+
+    async sendCommand(command: TurnDaemonCommand): Promise<string> {
+        return this.transport.sendCommand(this.scope(command));
+    }
+
+    async requestCommand(command: TurnDaemonCommand, timeoutMs?: number): Promise<TurnDaemonCommandResult | null> {
+        return this.transport.requestCommand(this.scope(command), timeoutMs);
+    }
+
+    async requestStatus(timeoutMs?: number): Promise<TurnDaemonStatus | null> {
+        return this.transport.requestStatus(timeoutMs);
+    }
+
+    private scope(command: TurnDaemonCommand): TurnDaemonCommand {
+        const requestId = `${this.parentRequestId}:engine:${this.sequence++}:${command.type}`;
+        return { ...command, requestId } as TurnDaemonCommand;
+    }
+}

app/game-api/src/daemon/inMemoryTransport.ts

@@ -27,7 +27,7 @@ export class InMemoryTurnDaemonTransport implements TurnDaemonTransport {
 
     // 테스트용: 메모리 큐에 명령을 저장하고 requestId를 반환한다.
     async sendCommand(command: TurnDaemonCommand): Promise<string> {
-        const requestId = command.type === 'getStatus' && command.requestId ? command.requestId : randomUUID();
+        const requestId = command.requestId ?? randomUUID();
         this.commands.push({
             requestId,
             sentAt: new Date().toISOString(),

app/game-api/src/daemon/redisTransport.ts

@@ -26,7 +26,7 @@ type RedisStreamReadResponse = Array<{
 }>;
 
 const buildCommandEnvelope = (command: TurnDaemonCommand): TurnDaemonCommandEnvelope => {
-    const requestId = command.type === 'getStatus' && command.requestId ? command.requestId : randomUUID();
+    const requestId = command.requestId ?? randomUUID();
     return {
         requestId,
         sentAt: new Date().toISOString(),

app/game-api/src/index.ts

@@ -8,11 +8,14 @@ import { runTournamentWorker } from './tournament/worker.js';
 
 export * from './config.js';
 export * from './context.js';
+export * from './inputEventBoundary.js';
 export * from './router.js';
 export * from './server.js';
 export * from './daemon/types.js';
 export * from './daemon/streamKeys.js';
 export * from './daemon/transport.js';
+export * from './daemon/databaseTransport.js';
+export * from './daemon/idempotentTransport.js';
 export * from './daemon/inMemoryTransport.js';
 export * from './daemon/redisTransport.js';
 export * from './auth/flushStore.js';
@@ -51,10 +54,10 @@ if (isMain()) {
         role === 'battle-sim-worker'
             ? runBattleSimWorker
             : role === 'auction-worker'
-                            ? runAuctionWorker
-                            : role === 'tournament-worker'
-                                ? runTournamentWorker
-                                : runGameApiServer;
+              ? runAuctionWorker
+              : role === 'tournament-worker'
+                ? runTournamentWorker
+                : runGameApiServer;
     run().catch((error) => {
         console.error('[game-api] failed to start', error);
         process.exitCode = 1;

app/game-api/src/inputEventBoundary.ts

@@ -0,0 +1,86 @@
+import type { GamePrisma } from '@sammo-ts/infra';
+
+import type { DatabaseClient } from './context.js';
+
+const asJson = (value: unknown): GamePrisma.InputJsonValue => value as GamePrisma.InputJsonValue;
+
+export class DuplicateInputEventError extends Error {
+    constructor(readonly requestId: string) {
+        super(`Input event ${requestId} was already accepted.`);
+        this.name = 'DuplicateInputEventError';
+    }
+}
+
+export const executeInputEvent = async <T>(options: {
+    db: DatabaseClient;
+    requestId: string;
+    eventType: string;
+    actorUserId?: string | null;
+    execute(db: DatabaseClient): Promise<T>;
+}): Promise<T> => {
+    const { db, requestId, eventType, actorUserId, execute } = options;
+    if (!db.$transaction) {
+        return execute(db);
+    }
+
+    const processingAt = new Date();
+    try {
+        await db.inputEvent.create({
+            data: {
+                requestId,
+                target: 'API',
+                eventType,
+                payload: asJson({}),
+                actorUserId: actorUserId ?? null,
+                status: 'PROCESSING',
+                processingAt,
+                attempts: 1,
+            },
+        });
+    } catch (error) {
+        const isUniqueConflict =
+            typeof error === 'object' && error !== null && 'code' in error && error.code === 'P2002';
+        if (!isUniqueConflict) {
+            throw error;
+        }
+        const claimedRetry = await db.inputEvent.updateMany({
+            where: { requestId, status: 'FAILED' },
+            data: {
+                status: 'PROCESSING',
+                error: null,
+                processingAt,
+                completedAt: null,
+                attempts: { increment: 1 },
+            },
+        });
+        if (claimedRetry.count === 0) {
+            throw new DuplicateInputEventError(requestId);
+        }
+    }
+
+    try {
+        return await db.$transaction(async (transaction) => {
+            const result = await execute(transaction);
+            await transaction.inputEvent.update({
+                where: { requestId },
+                data: {
+                    status: 'SUCCEEDED',
+                    result: asJson({ ok: true }),
+                    completedAt: new Date(),
+                },
+            });
+            return result;
+        });
+    } catch (error) {
+        const message = error instanceof Error ? error.message : 'Unknown API input event error.';
+        await db.inputEvent.update({
+            where: { requestId },
+            data: {
+                status: 'FAILED',
+                error: message,
+                completedAt: new Date(),
+            },
+        });
+        throw error;
+    }
+};

app/game-api/src/server.ts

@@ -14,8 +14,7 @@ import {
 
 import { resolveGameApiConfigFromEnv } from './config.js';
 import { createGameApiContext, type DatabaseClient as _DatabaseClient } from './context.js';
-import { buildTurnDaemonStreamKeys } from './daemon/streamKeys.js';
-import { RedisTurnDaemonTransport } from './daemon/redisTransport.js';
+import { DatabaseTurnDaemonTransport } from './daemon/databaseTransport.js';
 import { InMemoryFlushStore, RedisGatewayFlushSubscriber, type FlushStore } from './auth/flushStore.js';
 import { RedisAccessTokenStore } from './auth/accessTokenStore.js';
 import { appRouter } from './router.js';
@@ -66,10 +65,7 @@ export const createGameApiServer = async () => {
     await postgres.connect();
     await redis.connect();
 
-    const turnDaemon = new RedisTurnDaemonTransport(redis.client, {
-        keys: buildTurnDaemonStreamKeys(config.profileName),
-        requestTimeoutMs: config.daemonRequestTimeoutMs,
-    });
+    const turnDaemon = new DatabaseTurnDaemonTransport(postgres.prisma, config.daemonRequestTimeoutMs);
     const battleSim = new RedisBattleSimTransport(redis.client, {
         keys: buildBattleSimQueueKeys(config.profileName),
         requestTimeoutMs: config.battleSimRequestTimeoutMs,
@@ -83,10 +79,7 @@ export const createGameApiServer = async () => {
     const accessTokenStore = new RedisAccessTokenStore(redis.client, config.profileName);
     const realtimeSubscriberClient = redis.client.duplicate();
     await realtimeSubscriberClient.connect();
-    const realtimeHub = new RedisRealtimeEventHub(
-        realtimeSubscriberClient,
-        buildGameEventChannel(config.profileName)
-    );
+    const realtimeHub = new RedisRealtimeEventHub(realtimeSubscriberClient, buildGameEventChannel(config.profileName));
     await realtimeHub.start();
 
     const app = fastify({
@@ -111,6 +104,10 @@ export const createGameApiServer = async () => {
                 const token = extractBearerToken(req.headers.authorization);
                 const auth = await resolveAuthFromToken(token, accessTokenStore, flushStore);
                 return createGameApiContext({
+                    requestId:
+                        (Array.isArray(req.headers['idempotency-key'])
+                            ? req.headers['idempotency-key'][0]
+                            : req.headers['idempotency-key']) || undefined,
                     db: postgres.prisma,
                     redis: redis.client,
                     turnDaemon,

app/game-api/src/trpc.ts

@@ -1,12 +1,52 @@
+import { randomUUID } from 'node:crypto';
 import { initTRPC, TRPCError } from '@trpc/server';
 
 import type { GameApiContext } from './context.js';
+import { IdempotentTurnDaemonTransport } from './daemon/idempotentTransport.js';
+import { DuplicateInputEventError, executeInputEvent } from './inputEventBoundary.js';
 
 const t = initTRPC.context<GameApiContext>().create();
 
+const inputEventMiddleware = t.middleware(async ({ ctx, type, path, next }) => {
+    if (type !== 'mutation' || !ctx.db.$transaction) {
+        return next();
+    }
+
+    const requestId = `${ctx.requestId ?? randomUUID()}:${path}`;
+    try {
+        return await executeInputEvent({
+            db: ctx.db,
+            requestId,
+            eventType: path,
+            actorUserId: ctx.auth?.user.id,
+            execute: async (transaction) => {
+                const result = await next({
+                    ctx: {
+                        ...ctx,
+                        db: transaction,
+                        turnDaemon: new IdempotentTurnDaemonTransport(ctx.turnDaemon, requestId),
+                    },
+                });
+                if (!result.ok) {
+                    throw result.error;
+                }
+                return result;
+            },
+        });
+    } catch (error) {
+        if (error instanceof DuplicateInputEventError) {
+            throw new TRPCError({
+                code: 'CONFLICT',
+                message: error.message,
+            });
+        }
+        throw error;
+    }
+});
+
 export const router = t.router;
-export const procedure = t.procedure;
-export const authedProcedure: typeof t.procedure = t.procedure.use(({ ctx, next }) => {
+export const procedure = t.procedure.use(inputEventMiddleware);
+export const authedProcedure: typeof procedure = procedure.use(({ ctx, next }) => {
     if (!ctx.auth) {
         throw new TRPCError({
             code: 'UNAUTHORIZED',

app/game-api/test/idempotentTransport.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it } from 'vitest';
+
+import { IdempotentTurnDaemonTransport } from '../src/daemon/idempotentTransport.js';
+import { InMemoryTurnDaemonTransport } from '../src/daemon/inMemoryTransport.js';
+
+describe('IdempotentTurnDaemonTransport', () => {
+    it('derives stable ordered engine request IDs from the API input event', async () => {
+        const inner = new InMemoryTurnDaemonTransport();
+        const firstAttempt = new IdempotentTurnDaemonTransport(inner, 'api-event');
+        const retry = new IdempotentTurnDaemonTransport(inner, 'api-event');
+
+        await firstAttempt.sendCommand({ type: 'vacation', generalId: 7 });
+        await firstAttempt.sendCommand({ type: 'dropItem', generalId: 7, itemType: 'weapon' });
+        await retry.sendCommand({ type: 'vacation', generalId: 7 });
+
+        expect(inner.commands.map((entry) => entry.requestId)).toEqual([
+            'api-event:engine:0:vacation',
+            'api-event:engine:1:dropItem',
+            'api-event:engine:0:vacation',
+        ]);
+    });
+});

app/game-api/test/inputEventBoundary.integration.test.ts

@@ -0,0 +1,147 @@
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import { createGamePostgresConnector, type GamePrismaClient } from '@sammo-ts/infra';
+
+import { DuplicateInputEventError, executeInputEvent } from '../src/inputEventBoundary.js';
+import { ConflictingTurnDaemonCommandError, DatabaseTurnDaemonTransport } from '../src/daemon/databaseTransport.js';
+
+const databaseUrl = process.env.INPUT_EVENT_DATABASE_URL;
+const integration = describe.skipIf(!databaseUrl);
+
+integration('API input event boundary', () => {
+    let close: (() => Promise<void>) | undefined;
+    let db: GamePrismaClient;
+
+    beforeAll(async () => {
+        const connector = createGamePostgresConnector({ url: databaseUrl! });
+        await connector.connect();
+        db = connector.prisma;
+        close = () => connector.disconnect();
+        await db.inputEvent.deleteMany({
+            where: { requestId: { startsWith: 'integration:api:' } },
+        });
+    });
+
+    afterAll(async () => {
+        await db.inputEvent.deleteMany({
+            where: { requestId: { startsWith: 'integration:api:' } },
+        });
+        await close?.();
+    });
+
+    it('commits a direct DB mutation and its event marker together', async () => {
+        const requestId = 'integration:api:success';
+        const markerId = 'integration:api:success:marker';
+        await executeInputEvent({
+            db,
+            requestId,
+            eventType: 'test.success',
+            actorUserId: 'user-7',
+            execute: async (transaction) => {
+                await transaction.inputEvent.create({
+                    data: {
+                        requestId: markerId,
+                        target: 'API',
+                        eventType: 'test.marker',
+                    },
+                });
+                return { ok: true };
+            },
+        });
+
+        const [event, marker] = await Promise.all([
+            db.inputEvent.findUniqueOrThrow({ where: { requestId } }),
+            db.inputEvent.findUniqueOrThrow({ where: { requestId: markerId } }),
+        ]);
+        expect(event).toMatchObject({
+            status: 'SUCCEEDED',
+            actorUserId: 'user-7',
+            attempts: 1,
+        });
+        expect(marker.status).toBe('PENDING');
+    });
+
+    it('rolls back business writes, records failure, and permits one explicit retry', async () => {
+        const requestId = 'integration:api:retry';
+        const markerId = 'integration:api:retry:marker';
+        await expect(
+            executeInputEvent({
+                db,
+                requestId,
+                eventType: 'test.failure',
+                execute: async (transaction) => {
+                    await transaction.inputEvent.create({
+                        data: {
+                            requestId: markerId,
+                            target: 'API',
+                            eventType: 'test.marker',
+                        },
+                    });
+                    throw new Error('injected transaction failure');
+                },
+            })
+        ).rejects.toThrow('injected transaction failure');
+
+        expect(await db.inputEvent.findUnique({ where: { requestId: markerId } })).toBeNull();
+        expect(await db.inputEvent.findUniqueOrThrow({ where: { requestId } })).toMatchObject({
+            status: 'FAILED',
+            attempts: 1,
+            error: 'injected transaction failure',
+        });
+
+        await executeInputEvent({
+            db,
+            requestId,
+            eventType: 'test.failure',
+            execute: async () => ({ ok: true }),
+        });
+        expect(await db.inputEvent.findUniqueOrThrow({ where: { requestId } })).toMatchObject({
+            status: 'SUCCEEDED',
+            attempts: 2,
+        });
+    });
+
+    it('rejects a concurrent duplicate idempotency key', async () => {
+        const requestId = 'integration:api:duplicate';
+        let releaseFirst: (() => void) | undefined;
+        let signalStarted: (() => void) | undefined;
+        const started = new Promise<void>((resolve) => {
+            signalStarted = resolve;
+        });
+        const release = new Promise<void>((resolve) => {
+            releaseFirst = resolve;
+        });
+        const first = executeInputEvent({
+            db,
+            requestId,
+            eventType: 'test.duplicate',
+            execute: async () => {
+                signalStarted?.();
+                await release;
+                return { ok: true };
+            },
+        });
+        await started;
+
+        await expect(
+            executeInputEvent({
+                db,
+                requestId,
+                eventType: 'test.duplicate',
+                execute: async () => ({ ok: true }),
+            })
+        ).rejects.toBeInstanceOf(DuplicateInputEventError);
+
+        releaseFirst?.();
+        await first;
+    });
+
+    it('reuses the same engine child event but rejects a changed retry payload', async () => {
+        const transport = new DatabaseTurnDaemonTransport(db, 100);
+        const requestId = 'integration:api:engine-child';
+        await transport.sendCommand({ type: 'vacation', requestId, generalId: 7 });
+        await expect(transport.sendCommand({ type: 'vacation', requestId, generalId: 7 })).resolves.toBe(requestId);
+        await expect(transport.sendCommand({ type: 'vacation', requestId, generalId: 8 })).rejects.toBeInstanceOf(
+            ConflictingTurnDaemonCommandError
+        );
+    });
+});

app/game-engine/src/auction/bidder.ts

@@ -2,11 +2,14 @@ import { randomUUID } from 'node:crypto';
 
 import { createGamePostgresConnector, GamePrisma, type GamePrismaClient } from '@sammo-ts/infra';
 
-import type { TurnDaemonCommand, TurnDaemonCommandResult, TurnDaemonHooks } from '../lifecycle/types.js';
+import type { TurnDaemonCommand, TurnDaemonCommandResult } from '../lifecycle/types.js';
 import type { InMemoryTurnWorld } from '../turn/inMemoryWorld.js';
 
 export interface AuctionBidder {
-    bid(command: Extract<TurnDaemonCommand, { type: 'auctionBid' }>): Promise<TurnDaemonCommandResult>;
+    bid(
+        command: Extract<TurnDaemonCommand, { type: 'auctionBid' }>,
+        db?: GamePrisma.TransactionClient
+    ): Promise<TurnDaemonCommandResult>;
     close(): Promise<void>;
 }
 
@@ -37,25 +40,6 @@ interface AuctionDetail {
     availableLatestBidCloseDate?: string | null;
 }
 
-const buildFlushResult = (world: InMemoryTurnWorld) => {
-    const state = world.getState();
-    return {
-        lastTurnTime: state.lastTurnTime.toISOString(),
-        processedGenerals: 0,
-        processedTurns: 0,
-        durationMs: 0,
-        partial: false,
-        checkpoint: world.getCheckpoint(),
-    };
-};
-
-const flushWorld = async (world: InMemoryTurnWorld, hooks?: TurnDaemonHooks): Promise<void> => {
-    if (!hooks?.flushChanges) {
-        return;
-    }
-    await hooks.flushChanges(buildFlushResult(world));
-};
-
 const parseDetail = (detail: unknown): AuctionDetail => {
     if (!detail || typeof detail !== 'object') {
         return {};
@@ -94,7 +78,9 @@ const shouldUsePrevBid = (highestBid: AuctionBidRow | null, myPrevBid: AuctionBi
     return myPrevBid;
 };
 
-const loadAuction = async (prisma: GamePrismaClient, auctionId: number): Promise<AuctionRow | null> => {
+type QueryClient = Pick<GamePrismaClient, '$queryRaw'>;
+
+const loadAuction = async (prisma: QueryClient, auctionId: number): Promise<AuctionRow | null> => {
     const rows = await prisma.$queryRaw<AuctionRow[]>(
         GamePrisma.sql`
             SELECT id,
@@ -110,7 +96,7 @@ const loadAuction = async (prisma: GamePrismaClient, auctionId: number): Promise
 };
 
 const loadHighestBid = async (
-    prisma: GamePrismaClient,
+    prisma: QueryClient,
     auctionId: number,
     isReverse: boolean
 ): Promise<AuctionBidRow | null> => {
@@ -135,7 +121,7 @@ const loadHighestBid = async (
 };
 
 const loadMyPrevBid = async (
-    prisma: GamePrismaClient,
+    prisma: QueryClient,
     auctionId: number,
     generalId: number,
     isReverse: boolean
@@ -160,8 +146,6 @@ const loadMyPrevBid = async (
     return rows[0] ?? null;
 };
 
-type QueryClient = Pick<GamePrismaClient, '$queryRaw'>;
-
 const resolveUserId = async (prisma: QueryClient, generalId: number): Promise<string | null> => {
     const rows = await prisma.$queryRaw<{ userId: string | null }[]>(
         GamePrisma.sql`SELECT user_id as "userId" FROM general WHERE id = ${generalId}`
@@ -172,17 +156,16 @@ const resolveUserId = async (prisma: QueryClient, generalId: number): Promise<st
 export const createAuctionBidder = async (options: {
     databaseUrl: string;
     world: InMemoryTurnWorld;
-    hooks?: TurnDaemonHooks;
 }): Promise<AuctionBidder> => {
     const connector = createGamePostgresConnector({ url: options.databaseUrl });
     await connector.connect();
     const prisma = connector.prisma;
     const world = options.world;
-    const hooks = options.hooks;
 
     return {
-        bid: async (command): Promise<TurnDaemonCommandResult> => {
-            const auction = await loadAuction(prisma, command.auctionId);
+        bid: async (command, commandDb): Promise<TurnDaemonCommandResult> => {
+            const db = commandDb ?? prisma;
+            const auction = await loadAuction(db, command.auctionId);
             if (!auction) {
                 return { type: 'auctionBid', ok: false, auctionId: command.auctionId, reason: '경매가 없습니다.' };
             }
@@ -206,8 +189,8 @@ export const createAuctionBidder = async (options: {
 
             const detail = parseDetail(auction.detail);
             const isReverse = detail.isReverse === true;
-            const highestBid = await loadHighestBid(prisma, command.auctionId, isReverse);
-            const myPrevBidRaw = await loadMyPrevBid(prisma, command.auctionId, command.generalId, isReverse);
+            const highestBid = await loadHighestBid(db, command.auctionId, isReverse);
+            const myPrevBidRaw = await loadMyPrevBid(db, command.auctionId, command.generalId, isReverse);
             const myPrevBid = shouldUsePrevBid(highestBid, myPrevBidRaw);
 
             if (highestBid) {
@@ -292,7 +275,12 @@ export const createAuctionBidder = async (options: {
                 };
             }
 
-            if (auction.type !== 'UNIQUE_ITEM' && highestBid && highestBid.generalId !== command.generalId && !myPrevBid) {
+            if (
+                auction.type !== 'UNIQUE_ITEM' &&
+                highestBid &&
+                highestBid.generalId !== command.generalId &&
+                !myPrevBid
+            ) {
                 const prev = world.getGeneralById(highestBid.generalId);
                 if (!prev) {
                     return {
@@ -319,7 +307,7 @@ export const createAuctionBidder = async (options: {
             const eventAt = now;
 
             try {
-                await prisma.$transaction(async (tx) => {
+                const persistBid = async (tx: GamePrisma.TransactionClient): Promise<void> => {
                     await tx.$executeRaw(
                         GamePrisma.sql`
                             INSERT INTO auction_bid (auction_id, general_id, amount, event_id, event_at, meta)
@@ -407,7 +395,20 @@ export const createAuctionBidder = async (options: {
                             }
                         }
                     }
-                });
+                };
+                if (commandDb) {
+                    await commandDb.$executeRawUnsafe('SAVEPOINT auction_bid_attempt');
+                    try {
+                        await persistBid(commandDb);
+                        await commandDb.$executeRawUnsafe('RELEASE SAVEPOINT auction_bid_attempt');
+                    } catch (error) {
+                        await commandDb.$executeRawUnsafe('ROLLBACK TO SAVEPOINT auction_bid_attempt');
+                        await commandDb.$executeRawUnsafe('RELEASE SAVEPOINT auction_bid_attempt');
+                        throw error;
+                    }
+                } else {
+                    await prisma.$transaction(persistBid);
+                }
             } catch (error) {
                 const reason = error instanceof Error ? error.message : 'CONFLICT';
                 if (reason === 'INSUFFICIENT_POINT') {
@@ -445,15 +446,11 @@ export const createAuctionBidder = async (options: {
                     const prev = world.getGeneralById(highestBid.generalId);
                     if (prev) {
                         world.updateGeneral(highestBid.generalId, {
-                            gold:
-                                resourceType === 'gold' ? prev.gold + highestBid.amount : prev.gold,
-                            rice:
-                                resourceType === 'rice' ? prev.rice + highestBid.amount : prev.rice,
+                            gold: resourceType === 'gold' ? prev.gold + highestBid.amount : prev.gold,
+                            rice: resourceType === 'rice' ? prev.rice + highestBid.amount : prev.rice,
                         });
                     }
                 }
-
-                await flushWorld(world, hooks);
             }
 
             return {

app/game-engine/src/auction/finalizer.ts

@@ -1,13 +1,13 @@
-import { createGamePostgresConnector, GamePrisma, type GamePrismaClient } from '@sammo-ts/infra';
+import { createGamePostgresConnector, GamePrisma } from '@sammo-ts/infra';
 import { ActionLogger, ItemLoader, LogFormat, UserLogger, isItemKey } from '@sammo-ts/logic';
 import { JosaUtil } from '@sammo-ts/common';
 
-import type { TurnDaemonCommandResult, TurnDaemonHooks } from '../lifecycle/types.js';
+import type { TurnDaemonCommandResult } from '../lifecycle/types.js';
 import type { InMemoryTurnWorld } from '../turn/inMemoryWorld.js';
 import type { LogEntryDraft } from '@sammo-ts/logic';
 
 export interface AuctionFinalizer {
-    finalize(auctionId: number): Promise<TurnDaemonCommandResult>;
+    finalize(auctionId: number, db?: GamePrisma.TransactionClient): Promise<TurnDaemonCommandResult>;
     close(): Promise<void>;
 }
 
@@ -44,25 +44,6 @@ interface AuctionDetailResource extends AuctionDetailBase {
     amount?: number;
 }
 
-const buildFlushResult = (world: InMemoryTurnWorld) => {
-    const state = world.getState();
-    return {
-        lastTurnTime: state.lastTurnTime.toISOString(),
-        processedGenerals: 0,
-        processedTurns: 0,
-        durationMs: 0,
-        partial: false,
-        checkpoint: world.getCheckpoint(),
-    };
-};
-
-const flushWorld = async (world: InMemoryTurnWorld, hooks?: TurnDaemonHooks): Promise<void> => {
-    if (!hooks?.flushChanges) {
-        return;
-    }
-    await hooks.flushChanges(buildFlushResult(world));
-};
-
 const parseDetail = (detail: unknown): AuctionDetailResource => {
     if (!detail || typeof detail !== 'object') {
         return {};
@@ -72,7 +53,9 @@ const parseDetail = (detail: unknown): AuctionDetailResource => {
 
 const toTurnMinutes = (tickSeconds: number): number => Math.max(1, Math.round(tickSeconds / 60));
 
-const resolveTurnMinutes = async (prisma: GamePrismaClient): Promise<number> => {
+type AuctionDb = GamePrisma.TransactionClient;
+
+const resolveTurnMinutes = async (prisma: AuctionDb): Promise<number> => {
     const rows = (await prisma.$queryRaw(
         GamePrisma.sql`SELECT tick_seconds as "tickSeconds" FROM world_state ORDER BY id LIMIT 1`
     )) as Array<{ tickSeconds: number }>;
@@ -104,7 +87,7 @@ const pushLogs = (world: InMemoryTurnWorld, logs: LogEntryDraft[]): void => {
 };
 
 const refundInheritancePoint = async (options: {
-    prisma: GamePrismaClient;
+    prisma: AuctionDb;
     userId: string;
     amount: number;
 }): Promise<void> => {
@@ -142,25 +125,24 @@ const refundInheritancePoint = async (options: {
 export const createAuctionFinalizer = async (options: {
     databaseUrl: string;
     world: InMemoryTurnWorld;
-    hooks?: TurnDaemonHooks;
 }): Promise<AuctionFinalizer> => {
     const connector = createGamePostgresConnector({ url: options.databaseUrl });
     await connector.connect();
     const prisma = connector.prisma;
     const world = options.world;
-    const hooks = options.hooks;
     const itemLoader = new ItemLoader();
 
-    const getGeneralUserId = async (generalId: number): Promise<string | null> => {
-        const rows = await prisma.$queryRaw<{ userId: string | null }[]>(
+    const getGeneralUserId = async (db: AuctionDb, generalId: number): Promise<string | null> => {
+        const rows = await db.$queryRaw<{ userId: string | null }[]>(
             GamePrisma.sql`SELECT user_id as "userId" FROM general WHERE id = ${generalId}`
         );
         return rows[0]?.userId ?? null;
     };
 
     return {
-        finalize: async (auctionId: number): Promise<TurnDaemonCommandResult> => {
-            const rows = await prisma.$queryRaw<AuctionRow[]>(
+        finalize: async (auctionId: number, commandDb): Promise<TurnDaemonCommandResult> => {
+            const db = commandDb ?? prisma;
+            const rows = await db.$queryRaw<AuctionRow[]>(
                 GamePrisma.sql`
                     SELECT id,
                         type,
@@ -200,7 +182,7 @@ export const createAuctionFinalizer = async (options: {
             const detail = parseDetail(auction.detail);
             const isReverse = detail.isReverse === true;
 
-            const bidRows = await prisma.$queryRaw<AuctionBidRow[]>(
+            const bidRows = await db.$queryRaw<AuctionBidRow[]>(
                 isReverse
                     ? GamePrisma.sql`
                         SELECT id, general_id as "generalId", amount
@@ -224,7 +206,7 @@ export const createAuctionFinalizer = async (options: {
             const globalLogger = new ActionLogger();
 
             const finalizeStatus = async (status: AuctionStatus) => {
-                await prisma.$executeRaw(
+                await db.$executeRaw(
                     GamePrisma.sql`
                         UPDATE auction
                         SET status = ${status},
@@ -263,7 +245,10 @@ export const createAuctionFinalizer = async (options: {
                             [resourceKey]: host[resourceKey] + amount,
                         });
                         const hostLogger = new ActionLogger({ generalId: host.id, nationId: host.nationId });
-                        hostLogger.pushGeneralActionLog(`경매가 유찰되어 ${resourceKey === 'rice' ? '쌀' : '금'} ${amount}을 회수했습니다.`, LogFormat.PLAIN);
+                        hostLogger.pushGeneralActionLog(
+                            `경매가 유찰되어 ${resourceKey === 'rice' ? '쌀' : '금'} ${amount}을 회수했습니다.`,
+                            LogFormat.PLAIN
+                        );
                         logs.push(...hostLogger.flush());
                         globalLogger.pushGlobalActionLog(`경매 ${auctionId}번이 유찰되었습니다.`, LogFormat.PLAIN);
                     }
@@ -271,7 +256,6 @@ export const createAuctionFinalizer = async (options: {
 
                 logs.push(...globalLogger.flush());
                 pushLogs(world, logs);
-                await flushWorld(world, hooks);
                 await finalizeStatus('FINISHED');
                 return { type: 'auctionFinalize', ok: true, auctionId };
             }
@@ -358,8 +342,8 @@ export const createAuctionFinalizer = async (options: {
                 if (!itemModule) {
                     await finalizeStatus('CANCELED');
                     await refundInheritancePoint({
-                        prisma,
-                        userId: (await getGeneralUserId(bidder.id)) ?? '',
+                        prisma: db,
+                        userId: (await getGeneralUserId(db, bidder.id)) ?? '',
                         amount: highestBid.amount,
                     });
                     return {
@@ -375,7 +359,7 @@ export const createAuctionFinalizer = async (options: {
                 if (currentItem && currentItem !== 'None' && isItemKey(currentItem)) {
                     const currentModule = await itemLoader.load(currentItem).catch(() => null);
                     if (currentModule && !currentModule.buyable) {
-                        const turnMinutes = await resolveTurnMinutes(prisma);
+                        const turnMinutes = await resolveTurnMinutes(db);
                         const availableLatestBidCloseDate = detail.availableLatestBidCloseDate
                             ? new Date(detail.availableLatestBidCloseDate)
                             : null;
@@ -385,7 +369,7 @@ export const createAuctionFinalizer = async (options: {
                             turnMinutes,
                             availableLatestBidCloseDate,
                         });
-                        await prisma.$executeRaw(
+                        await db.$executeRaw(
                             GamePrisma.sql`
                                 UPDATE auction
                                 SET status = 'OPEN',
@@ -400,7 +384,6 @@ export const createAuctionFinalizer = async (options: {
                         );
                         logs.push(...globalLogger.flush());
                         pushLogs(world, logs);
-                        await flushWorld(world, hooks);
                         return {
                             type: 'auctionFinalize',
                             ok: false,
@@ -427,12 +410,15 @@ export const createAuctionFinalizer = async (options: {
                 );
                 logs.push(...bidderLogger.flush());
 
-                const bidderUserId = await getGeneralUserId(bidder.id);
+                const bidderUserId = await getGeneralUserId(db, bidder.id);
                 if (bidderUserId) {
                     const userIdNum = Number(bidderUserId);
                     if (Number.isFinite(userIdNum)) {
                         const userLogger = new UserLogger(userIdNum);
-                        userLogger.push(`유니크 ${itemModule.name} 경매로 ${highestBid.amount} 포인트 사용`, 'inheritPoint');
+                        userLogger.push(
+                            `유니크 ${itemModule.name} 경매로 ${highestBid.amount} 포인트 사용`,
+                            'inheritPoint'
+                        );
                         logs.push(...userLogger.flush());
                     }
                 }
@@ -442,7 +428,6 @@ export const createAuctionFinalizer = async (options: {
 
             logs.push(...globalLogger.flush());
             pushLogs(world, logs);
-            await flushWorld(world, hooks);
             await finalizeStatus('FINISHED');
 
             return { type: 'auctionFinalize', ok: true, auctionId };

app/game-engine/src/index.ts

@@ -5,6 +5,7 @@ import { runTurnDaemonCli } from './turn/cli.js';
 
 export * from './lifecycle/types.js';
 export * from './lifecycle/clock.js';
+export * from './lifecycle/databaseCommandQueue.js';
 export * from './lifecycle/inMemoryControlQueue.js';
 export * from './lifecycle/turnDaemonLifecycle.js';
 export * from './lifecycle/getNextTickTime.js';

app/game-engine/src/lifecycle/databaseCommandQueue.ts

@@ -0,0 +1,164 @@
+import { randomUUID } from 'node:crypto';
+import { GamePrisma, type GamePrismaClient } from '@sammo-ts/infra';
+
+import { normalizeTurnDaemonCommand } from '../turn/commandRegistry.js';
+import type {
+    TurnDaemonCommand,
+    TurnDaemonCommandResponder,
+    TurnDaemonCommandResult,
+    TurnDaemonControlQueue,
+    TurnDaemonStatus,
+} from './types.js';
+
+const asJson = (value: unknown): GamePrisma.InputJsonValue => value as GamePrisma.InputJsonValue;
+const delay = (ms: number): Promise<void> => new Promise((resolve) => setTimeout(resolve, ms));
+
+export class DatabaseTurnDaemonCommandQueue implements TurnDaemonControlQueue, TurnDaemonCommandResponder {
+    private readonly localQueue: TurnDaemonCommand[] = [];
+    private readonly workerId = randomUUID();
+    private readonly leaseDurationMs = 60_000;
+
+    constructor(private readonly db: GamePrismaClient) {}
+
+    async initialize(): Promise<void> {
+        await this.recoverExpiredLeases();
+    }
+
+    enqueue(command: TurnDaemonCommand): void {
+        this.localQueue.push(command);
+    }
+
+    async drain(): Promise<TurnDaemonCommand[]> {
+        const local = this.localQueue.splice(0, this.localQueue.length);
+        const remote = await this.claimPending();
+        return local.concat(remote);
+    }
+
+    async waitUntil(deadlineMs: number | null): Promise<TurnDaemonCommand | null> {
+        while (deadlineMs === null || Date.now() < deadlineMs) {
+            const local = this.localQueue.shift();
+            if (local) {
+                return local;
+            }
+            const remote = await this.claimPending(1);
+            if (remote[0]) {
+                return remote[0];
+            }
+            const remaining = deadlineMs === null ? 100 : Math.max(1, Math.min(100, deadlineMs - Date.now()));
+            await delay(remaining);
+        }
+        return null;
+    }
+
+    getDepth(): number {
+        return this.localQueue.length;
+    }
+
+    async publishStatus(requestId: string, status: TurnDaemonStatus): Promise<void> {
+        await this.complete(requestId, { status });
+    }
+
+    async publishCommandResult(requestId: string, result: TurnDaemonCommandResult): Promise<void> {
+        await this.complete(requestId, result);
+    }
+
+    private async claimPending(limit = 100): Promise<TurnDaemonCommand[]> {
+        await this.recoverExpiredLeases();
+        return this.db.$transaction(async (transaction) => {
+            const rows = await transaction.$queryRaw<
+                Array<{
+                    sequence: bigint;
+                    requestId: string;
+                    eventType: string;
+                    payload: unknown;
+                    createdAt: Date;
+                }>
+            >(GamePrisma.sql`
+                SELECT
+                    "sequence",
+                    "request_id" AS "requestId",
+                    "event_type" AS "eventType",
+                    "payload",
+                    "created_at" AS "createdAt"
+                FROM "input_event"
+                WHERE "target" = 'ENGINE'::"InputEventTarget"
+                  AND "status" = 'PENDING'::"InputEventStatus"
+                ORDER BY "sequence" ASC
+                FOR UPDATE SKIP LOCKED
+                LIMIT ${limit}
+            `);
+            if (rows.length === 0) {
+                return [];
+            }
+            await transaction.inputEvent.updateMany({
+                where: {
+                    sequence: { in: rows.map((row) => row.sequence) },
+                    target: 'ENGINE',
+                    status: 'PENDING',
+                },
+                data: {
+                    status: 'PROCESSING',
+                    processingAt: new Date(),
+                    lockedBy: this.workerId,
+                    leaseUntil: new Date(Date.now() + this.leaseDurationMs),
+                    attempts: { increment: 1 },
+                },
+            });
+
+            const commands: TurnDaemonCommand[] = [];
+            for (const row of rows) {
+                const command = normalizeTurnDaemonCommand({
+                    requestId: row.requestId,
+                    sentAt: row.createdAt.toISOString(),
+                    command: row.payload as TurnDaemonCommand,
+                });
+                if (!command) {
+                    await transaction.inputEvent.update({
+                        where: { sequence: row.sequence },
+                        data: {
+                            status: 'FAILED',
+                            error: `Invalid command payload for ${row.eventType}`,
+                            completedAt: new Date(),
+                            lockedBy: null,
+                            leaseUntil: null,
+                        },
+                    });
+                    continue;
+                }
+                commands.push(command);
+            }
+            return commands;
+        });
+    }
+
+    private async complete(requestId: string, result: unknown): Promise<void> {
+        await this.db.inputEvent.update({
+            where: { requestId },
+            data: {
+                status: 'SUCCEEDED',
+                result: asJson(result),
+                completedAt: new Date(),
+                error: null,
+                lockedBy: null,
+                leaseUntil: null,
+            },
+        });
+    }
+
+    private async recoverExpiredLeases(): Promise<void> {
+        const now = new Date();
+        await this.db.inputEvent.updateMany({
+            where: {
+                target: 'ENGINE',
+                status: 'PROCESSING',
+                leaseUntil: { lt: now },
+            },
+            data: {
+                status: 'PENDING',
+                processingAt: null,
+                lockedBy: null,
+                leaseUntil: null,
+            },
+        });
+    }
+}

app/game-engine/src/lifecycle/turnDaemonLifecycle.ts

@@ -13,6 +13,7 @@ import type {
     TurnDaemonCommandHandler,
     TurnDaemonCommandResponder,
     TurnDaemonCommandResult,
+    TurnDaemonCommandExecutionContext,
 } from './types.js';
 
 type PendingRun = {
@@ -21,6 +22,12 @@ type PendingRun = {
     budget?: TurnRunBudget;
 };
 
+type TurnDaemonControlCommand = Extract<
+    TurnDaemonCommand,
+    { type: 'pause' | 'resume' | 'shutdown' | 'getStatus' | 'run' }
+>;
+type TurnDaemonMutationCommand = Exclude<TurnDaemonCommand, TurnDaemonControlCommand>;
+
 export interface TurnDaemonLifecycleOptions {
     profile: string;
     defaultBudget: TurnRunBudget;
@@ -217,15 +224,24 @@ export class TurnDaemonLifecycle {
                 this.manualPaused = true;
                 this.status.paused = true;
                 this.status.state = 'paused';
+                if (command.requestId) {
+                    await this.commandResponder?.publishStatus(command.requestId, this.getStatus());
+                }
                 return;
             case 'resume':
                 this.manualPaused = false;
                 this.status.paused = this.errorPaused;
                 this.status.state = 'idle';
+                if (command.requestId) {
+                    await this.commandResponder?.publishStatus(command.requestId, this.getStatus());
+                }
                 return;
             case 'shutdown':
                 this.status.state = 'stopping';
                 this.stopping = true;
+                if (command.requestId) {
+                    await this.commandResponder?.publishStatus(command.requestId, this.getStatus());
+                }
                 return;
             case 'getStatus': {
                 if (command.requestId) {
@@ -240,79 +256,61 @@ export class TurnDaemonLifecycle {
                     budget: command.budget,
                 };
                 this.status.pendingReason = command.reason;
+                if (command.requestId) {
+                    await this.commandResponder?.publishStatus(command.requestId, this.getStatus());
+                }
                 return;
-            case 'troopJoin':
-            case 'troopExit':
-            case 'dieOnPrestart':
-            case 'buildNationCandidate':
-            case 'instantRetreat':
-            case 'vacation':
-            case 'setMySetting':
-            case 'dropItem':
-            case 'auctionFinalize':
-            case 'changePermission':
-            case 'kick':
-            case 'appoint':
+            default:
                 await this.handleMutationCommand(command);
                 return;
         }
     }
 
-    private async handleMutationCommand(
-        command: Extract<
-            TurnDaemonCommand,
-            | { type: 'troopJoin' }
-            | { type: 'troopExit' }
-            | { type: 'dieOnPrestart' }
-            | { type: 'buildNationCandidate' }
-            | { type: 'instantRetreat' }
-            | { type: 'vacation' }
-            | { type: 'setMySetting' }
-            | { type: 'dropItem' }
-            | { type: 'auctionFinalize' }
-            | { type: 'changePermission' }
-            | { type: 'kick' }
-            | { type: 'appoint' }
-        >
-    ): Promise<void> {
-        let result: TurnDaemonCommandResult | null = null;
-        try {
-            result = this.commandHandler ? await this.commandHandler.handle(command) : null;
-            if (!result) {
-                if (command.type === 'auctionFinalize') {
-                    result = {
-                        type: 'auctionFinalize',
-                        ok: false,
-                        auctionId: command.auctionId,
-                        reason: '턴 데몬이 경매 확정을 처리할 수 없습니다.',
-                    };
-                } else {
-                    result = {
-                        type: command.type,
-                        ok: false,
-                        generalId: command.generalId,
-                        reason: '턴 데몬이 명령을 처리할 수 없습니다.',
-                        ...(command.type === 'troopJoin' ? { troopId: command.troopId } : {}),
-                    } as TurnDaemonCommandResult;
+    private async handleMutationCommand(command: TurnDaemonMutationCommand): Promise<void> {
+        let result: TurnDaemonCommandResult;
+        let committedByExecutionBoundary = false;
+        const executeHandler = async (
+            context?: TurnDaemonCommandExecutionContext
+        ): Promise<TurnDaemonCommandResult> => {
+            const handled = this.commandHandler ? await this.commandHandler.handle(command, context) : null;
+            return (
+                handled ?? {
+                    type: 'commandRejected',
+                    ok: false,
+                    commandType: command.type,
+                    reason: '턴 데몬이 명령을 처리할 수 없습니다.',
                 }
+            );
+        };
+        try {
+            if (command.requestId && this.hooks?.executeCommand) {
+                result = await this.hooks.executeCommand(command.requestId, executeHandler);
+                committedByExecutionBoundary = true;
+            } else {
+                result = await executeHandler();
             }
         } catch (error) {
-            const reason = error instanceof Error ? error.message : 'Unknown command error.';
-            if (command.type === 'auctionFinalize') {
-                result = {
-                    type: 'auctionFinalize',
-                    ok: false,
-                    auctionId: command.auctionId,
-                    reason,
-                };
-            } else {
-                result = {
-                    type: command.type,
-                    ok: false,
-                    generalId: command.generalId,
-                    reason,
-                    ...(command.type === 'troopJoin' ? { troopId: command.troopId } : {}),
-                } as TurnDaemonCommandResult;
+            // A handler may already have changed the in-memory world. Do not commit
+            // either those changes or the inbox completion marker after an exception.
+            // Pausing forces a reload/retry instead of acknowledging a partial event.
+            this.status.state = 'paused';
+            this.status.paused = true;
+            this.errorPaused = true;
+            this.status.lastError = error instanceof Error ? error.message : 'Unknown command error.';
+            await this.hooks?.onRunError?.(error);
+            return;
+        }
+
+        if (!committedByExecutionBoundary && command.requestId && this.hooks?.commitCommand) {
+            try {
+                await this.hooks.commitCommand(command.requestId, result);
+            } catch (error) {
+                this.status.state = 'paused';
+                this.status.paused = true;
+                this.errorPaused = true;
+                this.status.lastError = error instanceof Error ? error.message : 'Unknown input event commit error.';
+                await this.hooks.onRunError?.(error);
+                return;
             }
         }
 
@@ -347,12 +345,26 @@ export class TurnDaemonLifecycle {
         }
 
         this.status.state = 'flushing';
-        await this.stateStore.saveLastTurnTime(new Date(result.lastTurnTime));
-        await this.stateStore.saveCheckpoint(result.checkpoint);
-        await this.hooks?.flushChanges?.(result);
-        await this.hooks?.publishEvents?.(result);
+        try {
+            await this.stateStore.saveLastTurnTime(new Date(result.lastTurnTime));
+            await this.stateStore.saveCheckpoint(result.checkpoint);
+            await this.hooks?.flushChanges?.(result);
+        } catch (error) {
+            this.status.state = 'paused';
+            this.status.paused = true;
+            this.errorPaused = true;
+            this.status.lastError = error instanceof Error ? error.message : 'Unknown turn flush error.';
+            await this.hooks?.onRunError?.(error);
+            return;
+        }
+
         await this.applyRunResult(result, startMs);
         this.status.state = 'idle';
+        try {
+            await this.hooks?.publishEvents?.(result);
+        } catch (error) {
+            this.status.lastError = error instanceof Error ? error.message : 'Unknown event publication error.';
+        }
     }
 
     private async applyRunResult(result: TurnRunResult, startMs: number): Promise<void> {

app/game-engine/src/lifecycle/types.ts

@@ -6,6 +6,7 @@ import type {
     TurnRunBudget,
     TurnRunResult,
 } from '@sammo-ts/common';
+import type { GamePrisma } from '@sammo-ts/infra';
 
 export type {
     RunReason,
@@ -19,7 +20,14 @@ export type {
 } from '@sammo-ts/common';
 
 export interface TurnDaemonCommandHandler {
-    handle(command: TurnDaemonCommand): Promise<TurnDaemonCommandResult | null>;
+    handle(
+        command: TurnDaemonCommand,
+        context?: TurnDaemonCommandExecutionContext
+    ): Promise<TurnDaemonCommandResult | null>;
+}
+
+export interface TurnDaemonCommandExecutionContext {
+    db?: GamePrisma.TransactionClient;
 }
 
 export interface TurnDaemonCommandResponder {
@@ -53,6 +61,11 @@ export interface TurnDaemonControlQueue {
 
 export interface TurnDaemonHooks {
     flushChanges?(result: TurnRunResult): Promise<void>;
+    commitCommand?(requestId: string, result: TurnDaemonCommandResult): Promise<void>;
+    executeCommand?(
+        requestId: string,
+        execute: (context: TurnDaemonCommandExecutionContext) => Promise<TurnDaemonCommandResult>
+    ): Promise<TurnDaemonCommandResult>;
     publishEvents?(result: TurnRunResult): Promise<void>;
     onRunError?(error: unknown): Promise<void>;
 }

app/game-engine/src/tournament/finalizer.ts

@@ -1,12 +1,15 @@
 import { JosaUtil, asRecord } from '@sammo-ts/common';
-import { createGamePostgresConnector } from '@sammo-ts/infra';
+import { createGamePostgresConnector, type GamePrisma } from '@sammo-ts/infra';
 import { ActionLogger, LogFormat, type TournamentType, type TriggerValue } from '@sammo-ts/logic';
 
-import type { TurnDaemonCommand, TurnDaemonCommandResult, TurnDaemonHooks } from '../lifecycle/types.js';
+import type { TurnDaemonCommand, TurnDaemonCommandResult } from '../lifecycle/types.js';
 import type { InMemoryTurnWorld } from '../turn/inMemoryWorld.js';
 
 export interface TournamentRewardFinalizer {
-    finalize(command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>): Promise<TurnDaemonCommandResult>;
+    finalize(
+        command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>,
+        db?: GamePrisma.TransactionClient
+    ): Promise<TurnDaemonCommandResult>;
     close(): Promise<void>;
 }
 
@@ -57,39 +60,22 @@ const pushLogs = (world: InMemoryTurnWorld, logs: ReturnType<ActionLogger['flush
     }
 };
 
-const flushWorld = async (world: InMemoryTurnWorld, hooks?: TurnDaemonHooks): Promise<void> => {
-    if (!hooks?.flushChanges) {
-        return;
-    }
-    const state = world.getState();
-    await hooks.flushChanges({
-        lastTurnTime: state.lastTurnTime.toISOString(),
-        processedGenerals: 0,
-        processedTurns: 0,
-        durationMs: 0,
-        partial: false,
-        checkpoint: world.getCheckpoint(),
-    });
-};
-
 export const createTournamentRewardFinalizer = async (options: {
     databaseUrl: string;
     world: InMemoryTurnWorld;
-    hooks?: TurnDaemonHooks;
 }): Promise<TournamentRewardFinalizer> => {
     const connector = createGamePostgresConnector({ url: options.databaseUrl });
     await connector.connect();
     const prisma = connector.prisma;
 
     const finalize = async (
-        command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>
+        command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>,
+        commandDb?: GamePrisma.TransactionClient
     ): Promise<TurnDaemonCommandResult> => {
-        const { world, hooks } = options;
+        const { world } = options;
+        const db = commandDb ?? prisma;
         const { winnerId, runnerUpId } = command;
-        const rewardMap = new Map<
-            number,
-            { gold: number; exp: number; label: string; inheritPoint: number }
-        >();
+        const rewardMap = new Map<number, { gold: number; exp: number; label: string; inheritPoint: number }>();
 
         const applyTier = (
             ids: number[],
@@ -126,7 +112,7 @@ export const createTournamentRewardFinalizer = async (options: {
         }
 
         const nameMap = new Map<number, string>();
-        const generals = await prisma.general.findMany({
+        const generals = await db.general.findMany({
             where: { id: { in: Array.from(rewardMap.keys()) } },
             select: { id: true, userId: true, name: true },
         });
@@ -240,7 +226,7 @@ export const createTournamentRewardFinalizer = async (options: {
             .filter((entry) => !!entry.userId);
 
         for (const entry of pointUpdates) {
-            await prisma.inheritancePoint.upsert({
+            await db.inheritancePoint.upsert({
                 where: {
                     userId_key: { userId: entry.userId!, key: 'tournament' },
                 },
@@ -249,8 +235,6 @@ export const createTournamentRewardFinalizer = async (options: {
             });
         }
 
-        await flushWorld(world, hooks);
-
         return {
             type: 'tournamentReward',
             ok: true,
@@ -269,4 +253,4 @@ export const createTournamentRewardFinalizer = async (options: {
             await connector.disconnect();
         },
     };
-};
+};

app/game-engine/src/turn/commandRegistry.ts

@@ -1,10 +1,6 @@
 import { z } from 'zod';
 
-import type {
-    TurnDaemonCommand,
-    TurnDaemonCommandType,
-    TurnDaemonCommandByType,
-} from '@sammo-ts/common';
+import type { TurnDaemonCommand, TurnDaemonCommandType, TurnDaemonCommandByType } from '@sammo-ts/common';
 
 export type TurnDaemonCommandEnvelope = {
     requestId: string;
@@ -161,22 +157,21 @@ const zSetNationMeta = z.object({
     expectedUpdatedAt: z.string().optional(),
 });
 
-const zAdjustGeneralResources = z
-    .object({
-        type: z.literal('adjustGeneralResources'),
-        reason: z.string().optional(),
-        adjustments: z
-            .array(
-                z
-                    .object({
-                        generalId: zFiniteNumber,
-                        goldDelta: zFiniteNumber.optional(),
-                        riceDelta: zFiniteNumber.optional(),
-                    })
-                    .refine((value) => value.goldDelta !== undefined || value.riceDelta !== undefined)
-            )
-            .min(1),
-    });
+const zAdjustGeneralResources = z.object({
+    type: z.literal('adjustGeneralResources'),
+    reason: z.string().optional(),
+    adjustments: z
+        .array(
+            z
+                .object({
+                    generalId: zFiniteNumber,
+                    goldDelta: zFiniteNumber.optional(),
+                    riceDelta: zFiniteNumber.optional(),
+                })
+                .refine((value) => value.goldDelta !== undefined || value.riceDelta !== undefined)
+        )
+        .min(1),
+});
 
 const zAdjustGeneralMeta = z.object({
     type: z.literal('adjustGeneralMeta'),
@@ -430,10 +425,22 @@ const normalizeGetStatus: CommandNormalizer<'getStatus'> = (envelope) => {
     };
 };
 
-const normalizeRun: CommandNormalizer<'run'> = (envelope) => parseWith(zRun, envelope.command);
-const normalizePause: CommandNormalizer<'pause'> = (envelope) => parseWith(zPause, envelope.command);
-const normalizeResume: CommandNormalizer<'resume'> = (envelope) => parseWith(zResume, envelope.command);
-const normalizeShutdown: CommandNormalizer<'shutdown'> = (envelope) => parseWith(zShutdown, envelope.command);
+const normalizeRun: CommandNormalizer<'run'> = (envelope) => {
+    const command = parseWith(zRun, envelope.command);
+    return command ? { ...command, requestId: envelope.requestId } : null;
+};
+const normalizePause: CommandNormalizer<'pause'> = (envelope) => {
+    const command = parseWith(zPause, envelope.command);
+    return command ? { ...command, requestId: envelope.requestId } : null;
+};
+const normalizeResume: CommandNormalizer<'resume'> = (envelope) => {
+    const command = parseWith(zResume, envelope.command);
+    return command ? { ...command, requestId: envelope.requestId } : null;
+};
+const normalizeShutdown: CommandNormalizer<'shutdown'> = (envelope) => {
+    const command = parseWith(zShutdown, envelope.command);
+    return command ? { ...command, requestId: envelope.requestId } : null;
+};
 
 const normalizers: CommandNormalizerMap = {
     auctionFinalize: normalizeAuctionFinalize,

app/game-engine/src/turn/databaseHooks.ts

@@ -1,5 +1,6 @@
 import {
     createGamePostgresConnector,
+    type GamePrisma,
     type InputJsonValue,
     type TurnEngineCityUpdateInput,
     type TurnEngineDiplomacyCreateManyInput,
@@ -15,7 +16,7 @@ import {
 import { finalizeLogEntry, LogCategory, LogScope, type LogEntryDraft } from '@sammo-ts/logic';
 import { asRecord, type RankDataType } from '@sammo-ts/common';
 
-import type { TurnDaemonHooks } from '../lifecycle/types.js';
+import type { TurnDaemonCommandResult, TurnDaemonHooks } from '../lifecycle/types.js';
 import type { InMemoryTurnWorld } from './inMemoryWorld.js';
 import type { InMemoryReservedTurnStore } from './reservedTurnStore.js';
 import { buildDiplomacyMeta } from '@sammo-ts/logic';
@@ -305,32 +306,37 @@ export const createDatabaseTurnHooks = async (
     await connector.connect();
     const prisma = connector.prisma;
 
-    const hooks: TurnDaemonHooks = {
-        flushChanges: async () => {
-            const state = world.getState();
-            const {
-                generals,
-                cities,
-                nations,
-                troops,
-                deletedTroops,
-                deletedGenerals,
-                deletedNations,
-                deletedNationSnapshots,
-                diplomacy,
-                logs,
-                createdGenerals,
-                createdNations,
-                createdTroops,
-                createdDiplomacy,
-            } = world.consumeDirtyState();
+    const persistChanges = async (
+        transaction?: GamePrisma.TransactionClient,
+        commandCompletion?: { requestId: string; result: TurnDaemonCommandResult }
+    ): Promise<() => void> => {
+        const state = world.getState();
+        const changes = world.peekDirtyState();
+        const {
+            generals,
+            cities,
+            nations,
+            troops,
+            deletedTroops,
+            deletedGenerals,
+            deletedNations,
+            deletedNationSnapshots,
+            diplomacy,
+            logs,
+            createdGenerals,
+            createdNations,
+            createdTroops,
+            createdDiplomacy,
+        } = changes;
+        const reservedTurnChanges = options?.reservedTurns?.peekDirtyState();
 
-            const worldStateUpdate: TurnEngineWorldStateUpdateInput = {
-                currentYear: state.currentYear,
-                currentMonth: state.currentMonth,
-                tickSeconds: state.tickSeconds,
-                meta: asJson(state.meta),
-            };
+        const worldStateUpdate: TurnEngineWorldStateUpdateInput = {
+            currentYear: state.currentYear,
+            currentMonth: state.currentMonth,
+            tickSeconds: state.tickSeconds,
+            meta: asJson(state.meta),
+        };
+        const persist = async (prisma: GamePrisma.TransactionClient): Promise<void> => {
             await prisma.worldState.update({
                 where: { id: state.id },
                 data: worldStateUpdate,
@@ -462,10 +468,7 @@ export const createDatabaseTurnHooks = async (
             if (deletedNations.length > 0) {
                 await prisma.diplomacy.deleteMany({
                     where: {
-                        OR: [
-                            { srcNationId: { in: deletedNations } },
-                            { destNationId: { in: deletedNations } },
-                        ],
+                        OR: [{ srcNationId: { in: deletedNations } }, { destNationId: { in: deletedNations } }],
                     },
                 });
                 await prisma.nationTurn.deleteMany({
@@ -563,9 +566,52 @@ export const createDatabaseTurnHooks = async (
                     });
                 }
             }
-            if (options?.reservedTurns) {
-                await options.reservedTurns.flushChanges();
+            if (options?.reservedTurns && reservedTurnChanges) {
+                await options.reservedTurns.persistChanges(prisma, reservedTurnChanges);
             }
+            if (commandCompletion) {
+                await prisma.inputEvent.update({
+                    where: { requestId: commandCompletion.requestId },
+                    data: {
+                        status: 'SUCCEEDED',
+                        result: asJson(commandCompletion.result),
+                        completedAt: new Date(),
+                        error: null,
+                    },
+                });
+            }
+        };
+        if (transaction) {
+            await persist(transaction);
+        } else {
+            await prisma.$transaction(persist);
+        }
+
+        return () => {
+            world.acknowledgeDirtyState(changes);
+            if (options?.reservedTurns && reservedTurnChanges) {
+                options.reservedTurns.acknowledgeDirtyState(reservedTurnChanges);
+            }
+        };
+    };
+
+    const hooks: TurnDaemonHooks = {
+        flushChanges: async () => {
+            const acknowledge = await persistChanges();
+            acknowledge();
+        },
+        commitCommand: async (requestId, result) => {
+            const acknowledge = await persistChanges(undefined, { requestId, result });
+            acknowledge();
+        },
+        executeCommand: async (requestId, execute) => {
+            const committed = await prisma.$transaction(async (transaction) => {
+                const result = await execute({ db: transaction });
+                const acknowledge = await persistChanges(transaction, { requestId, result });
+                return { result, acknowledge };
+            });
+            committed.acknowledge();
+            return committed.result;
         },
     };
 

app/game-engine/src/turn/inMemoryWorld.ts

@@ -68,6 +68,23 @@ export interface InMemoryTurnWorldOptions {
     calendarHandler?: TurnCalendarHandler;
 }
 
+export interface TurnWorldChanges {
+    generals: TurnGeneral[];
+    cities: City[];
+    nations: Nation[];
+    troops: Troop[];
+    deletedTroops: number[];
+    deletedGenerals: number[];
+    deletedNations: number[];
+    deletedNationSnapshots: Array<{ nation: Nation; generalIds: number[]; removedAt: Date }>;
+    diplomacy: TurnDiplomacy[];
+    logs: LogEntryDraft[];
+    createdGenerals: TurnGeneral[];
+    createdNations: Nation[];
+    createdTroops: Troop[];
+    createdDiplomacy: TurnDiplomacy[];
+}
+
 const compareTurnOrder = (left: TurnGeneral, right: TurnGeneral): number => {
     const timeDiff = left.turnTime.getTime() - right.turnTime.getTime();
     if (timeDiff !== 0) {
@@ -694,22 +711,7 @@ export class InMemoryTurnWorld {
         }
     }
 
-    consumeDirtyState(): {
-        generals: TurnGeneral[];
-        cities: City[];
-        nations: Nation[];
-        troops: Troop[];
-        deletedTroops: number[];
-        deletedGenerals: number[];
-        deletedNations: number[];
-        deletedNationSnapshots: Array<{ nation: Nation; generalIds: number[]; removedAt: Date }>;
-        diplomacy: TurnDiplomacy[];
-        logs: LogEntryDraft[];
-        createdGenerals: TurnGeneral[];
-        createdNations: Nation[];
-        createdTroops: Troop[];
-        createdDiplomacy: TurnDiplomacy[];
-    } {
+    peekDirtyState(): TurnWorldChanges {
         const generals = Array.from(this.dirtyGeneralIds)
             .map((id) => this.generals.get(id))
             .filter((general): general is TurnGeneral => Boolean(general));
@@ -740,21 +742,8 @@ export class InMemoryTurnWorld {
         const deletedTroops = Array.from(this.deletedTroopIds);
         const deletedGenerals = Array.from(this.deletedGeneralIds);
         const deletedNations = Array.from(this.deletedNationIds);
-        const deletedNationSnapshots = this.deletedNationSnapshots.splice(0, this.deletedNationSnapshots.length);
-        const logs = this.logs.splice(0, this.logs.length);
-
-        this.dirtyGeneralIds.clear();
-        this.dirtyCityIds.clear();
-        this.dirtyNationIds.clear();
-        this.dirtyTroopIds.clear();
-        this.dirtyDiplomacyKeys.clear();
-        this.createdGeneralIds.clear();
-        this.createdNationIds.clear();
-        this.createdTroopIds.clear();
-        this.createdDiplomacyKeys.clear();
-        this.deletedTroopIds.clear();
-        this.deletedGeneralIds.clear();
-        this.deletedNationIds.clear();
+        const deletedNationSnapshots = this.deletedNationSnapshots.slice();
+        const logs = this.logs.slice();
 
         return {
             generals,
@@ -774,6 +763,33 @@ export class InMemoryTurnWorld {
         };
     }
 
+    acknowledgeDirtyState(changes: TurnWorldChanges): void {
+        for (const general of changes.generals) this.dirtyGeneralIds.delete(general.id);
+        for (const city of changes.cities) this.dirtyCityIds.delete(city.id);
+        for (const nation of changes.nations) this.dirtyNationIds.delete(nation.id);
+        for (const troop of changes.troops) this.dirtyTroopIds.delete(troop.id);
+        for (const entry of changes.diplomacy) {
+            this.dirtyDiplomacyKeys.delete(buildDiplomacyKey(entry.fromNationId, entry.toNationId));
+        }
+        for (const general of changes.createdGenerals) this.createdGeneralIds.delete(general.id);
+        for (const nation of changes.createdNations) this.createdNationIds.delete(nation.id);
+        for (const troop of changes.createdTroops) this.createdTroopIds.delete(troop.id);
+        for (const entry of changes.createdDiplomacy) {
+            this.createdDiplomacyKeys.delete(buildDiplomacyKey(entry.fromNationId, entry.toNationId));
+        }
+        for (const id of changes.deletedTroops) this.deletedTroopIds.delete(id);
+        for (const id of changes.deletedGenerals) this.deletedGeneralIds.delete(id);
+        for (const id of changes.deletedNations) this.deletedNationIds.delete(id);
+        this.deletedNationSnapshots.splice(0, changes.deletedNationSnapshots.length);
+        this.logs.splice(0, changes.logs.length);
+    }
+
+    consumeDirtyState(): TurnWorldChanges {
+        const changes = this.peekDirtyState();
+        this.acknowledgeDirtyState(changes);
+        return changes;
+    }
+
     private removeCollapsedNations(): void {
         const collapsedNationIds: number[] = [];
         for (const nation of this.nations.values()) {

app/game-engine/src/turn/reservedTurnStore.ts

@@ -72,6 +72,11 @@ const buildNationKey = (nationId: number, officerLevel: number): string => `${na
 
 type ReservedTurnDatabaseClient = Pick<TurnEngineDatabaseClient, 'generalTurn' | 'nationTurn'>;
 
+export interface ReservedTurnChanges {
+    generalIds: number[];
+    nationKeys: string[];
+}
+
 export class InMemoryReservedTurnStore {
     private readonly generalTurns = new Map<number, ReservedTurnEntry[]>();
     private readonly nationTurns = new Map<string, ReservedTurnEntry[]>();
@@ -213,12 +218,27 @@ export class InMemoryReservedTurnStore {
         this.dirtyNationKeys.add(key);
     }
 
-    async flushChanges(): Promise<void> {
-        const generalIds = Array.from(this.dirtyGeneralIds);
-        for (const generalId of generalIds) {
+    peekDirtyState(): ReservedTurnChanges {
+        return {
+            generalIds: Array.from(this.dirtyGeneralIds),
+            nationKeys: Array.from(this.dirtyNationKeys),
+        };
+    }
+
+    acknowledgeDirtyState(changes: ReservedTurnChanges): void {
+        for (const generalId of changes.generalIds) {
+            this.dirtyGeneralIds.delete(generalId);
+        }
+        for (const key of changes.nationKeys) {
+            this.dirtyNationKeys.delete(key);
+        }
+    }
+
+    async persistChanges(prisma: ReservedTurnDatabaseClient, changes: ReservedTurnChanges): Promise<void> {
+        for (const generalId of changes.generalIds) {
             const turns = this.getGeneralTurns(generalId);
-            await this.prisma.generalTurn.deleteMany({ where: { generalId } });
-            await this.prisma.generalTurn.createMany({
+            await prisma.generalTurn.deleteMany({ where: { generalId } });
+            await prisma.generalTurn.createMany({
                 data: turns.map((entry, turnIdx) => ({
                     generalId,
                     turnIdx,
@@ -228,16 +248,15 @@ export class InMemoryReservedTurnStore {
             });
         }
 
-        const nationKeys = Array.from(this.dirtyNationKeys);
-        for (const key of nationKeys) {
+        for (const key of changes.nationKeys) {
             const [nationIdRaw, officerLevelRaw] = key.split(':');
             const nationId = Number(nationIdRaw);
             const officerLevel = Number(officerLevelRaw);
             const turns = this.getNationTurns(nationId, officerLevel);
-            await this.prisma.nationTurn.deleteMany({
+            await prisma.nationTurn.deleteMany({
                 where: { nationId, officerLevel },
             });
-            await this.prisma.nationTurn.createMany({
+            await prisma.nationTurn.createMany({
                 data: turns.map((entry, turnIdx) => ({
                     nationId,
                     officerLevel,
@@ -247,9 +266,12 @@ export class InMemoryReservedTurnStore {
                 })),
             });
         }
+    }
 
-        this.dirtyGeneralIds.clear();
-        this.dirtyNationKeys.clear();
+    async flushChanges(): Promise<void> {
+        const changes = this.peekDirtyState();
+        await this.persistChanges(this.prisma, changes);
+        this.acknowledgeDirtyState(changes);
     }
 }
 

app/game-engine/src/turn/turnDaemon.ts

@@ -1,6 +1,6 @@
 import type { TurnCommandProfile, TurnSchedule } from '@sammo-ts/logic';
 import { buildGameEventChannel, type RealtimeEvent } from '@sammo-ts/common';
-import { createRedisConnector, resolveRedisConfigFromEnv } from '@sammo-ts/infra';
+import { createGamePostgresConnector, createRedisConnector, resolveRedisConfigFromEnv } from '@sammo-ts/infra';
 import { NATION_TRAIT_KEYS, NationTraitLoader, loadNationTraitModules } from '@sammo-ts/logic';
 
 import { SystemClock } from '../lifecycle/clock.js';
@@ -8,7 +8,7 @@ import { getNextTickTime } from '../lifecycle/getNextTickTime.js';
 import { InMemoryControlQueue } from '../lifecycle/inMemoryControlQueue.js';
 import type { Clock, TurnDaemonControlQueue, TurnDaemonHooks, TurnRunBudget } from '../lifecycle/types.js';
 import { TurnDaemonLifecycle } from '../lifecycle/turnDaemonLifecycle.js';
-import { buildTurnDaemonStreamKeys, RedisTurnDaemonCommandStream } from '../lifecycle/redisCommandStream.js';
+import { DatabaseTurnDaemonCommandQueue } from '../lifecycle/databaseCommandQueue.js';
 import type { MapLoaderOptions } from '../scenario/mapLoader.js';
 import { createDatabaseTurnHooks } from './databaseHooks.js';
 import type { GeneralTurnHandler, InMemoryTurnWorldOptions, TurnCalendarHandler } from './inMemoryWorld.js';
@@ -201,7 +201,6 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
     let auctionFinalizer: Awaited<ReturnType<typeof createAuctionFinalizer>> | null = null;
     let auctionBidder: Awaited<ReturnType<typeof createAuctionBidder>> | null = null;
     let tournamentRewardFinalizer: Awaited<ReturnType<typeof createTournamentRewardFinalizer>> | null = null;
-    let redisCommandStream: RedisTurnDaemonCommandStream | null = null;
     let pauseGate: (() => Promise<boolean>) | undefined;
     let adminActionConsumer: Awaited<ReturnType<typeof createGatewayAdminActionConsumer>> | null = null;
     const gatewayGate = options.profileName
@@ -222,17 +221,14 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
         auctionBidder = await createAuctionBidder({
             databaseUrl: options.databaseUrl,
             world,
-            hooks: dbHooks.hooks,
         });
         auctionFinalizer = await createAuctionFinalizer({
             databaseUrl: options.databaseUrl,
             world,
-            hooks: dbHooks.hooks,
         });
         tournamentRewardFinalizer = await createTournamentRewardFinalizer({
             databaseUrl: options.databaseUrl,
             world,
-            hooks: dbHooks.hooks,
         });
         hooks = {
             ...dbHooks.hooks,
@@ -290,10 +286,6 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
         redisConnector = createRedisConnector(redisConfig);
         await redisConnector.connect();
         const redisClient = redisConnector.client;
-        redisCommandStream = new RedisTurnDaemonCommandStream(redisClient, {
-            keys: buildTurnDaemonStreamKeys(options.profileName ?? options.profile),
-            startId: options.commandStreamStartId,
-        });
         const realtimeChannel = buildGameEventChannel(options.profileName ?? options.profile);
         publishRealtimeEvent = async (event: RealtimeEvent) => {
             await redisClient.publish(realtimeChannel, JSON.stringify(event));
@@ -320,6 +312,13 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
         };
     }
 
+    const commandConnector = hooks ? createGamePostgresConnector({ url: options.databaseUrl }) : null;
+    const databaseCommandQueue = commandConnector ? new DatabaseTurnDaemonCommandQueue(commandConnector.prisma) : null;
+    if (commandConnector && databaseCommandQueue) {
+        await commandConnector.connect();
+        await databaseCommandQueue.initialize();
+    }
+
     const baseClose = close;
     close = async () => {
         await baseClose();
@@ -330,12 +329,12 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
         if (redisConnector) {
             await redisConnector.disconnect();
         }
+        await commandConnector?.disconnect();
     };
 
-    const resolvedControlQueue = options.controlQueue ?? redisCommandStream ?? controlQueue;
+    const resolvedControlQueue = options.controlQueue ?? databaseCommandQueue ?? controlQueue;
     const commandHandler = createTurnDaemonCommandHandler({
         world,
-        hooks,
         auctionFinalizer: auctionFinalizer ?? undefined,
         auctionBidder: auctionBidder ?? undefined,
         tournamentRewardFinalizer: tournamentRewardFinalizer ?? undefined,
@@ -357,7 +356,7 @@ export const createTurnDaemonRuntime = async (options: TurnDaemonRuntimeOptions)
             hooks,
             pauseGate,
             commandHandler,
-            commandResponder: redisCommandStream ?? undefined,
+            commandResponder: options.controlQueue ? undefined : (databaseCommandQueue ?? undefined),
         },
         { profile: options.profile, defaultBudget }
     );

app/game-engine/src/turn/worldCommandHandler.ts

@@ -1,10 +1,10 @@
 import type {
-    TurnDaemonHooks,
     TurnDaemonCommandHandler,
     TurnDaemonCommand,
+    TurnDaemonCommandExecutionContext,
     TurnDaemonCommandResult,
-    TurnRunResult,
 } from '../lifecycle/types.js';
+import type { GamePrisma } from '@sammo-ts/infra';
 import { asRecord, JosaUtil, LiteHashDRBG, RandUtil } from '@sammo-ts/common';
 import {
     LogCategory,
@@ -23,25 +23,6 @@ import {
 import type { InMemoryTurnWorld } from './inMemoryWorld.js';
 import type { TurnGeneral } from './types.js';
 
-const buildFlushResult = (world: InMemoryTurnWorld): TurnRunResult => {
-    const state = world.getState();
-    return {
-        lastTurnTime: state.lastTurnTime.toISOString(),
-        processedGenerals: 0,
-        processedTurns: 0,
-        durationMs: 0,
-        partial: false,
-        checkpoint: world.getCheckpoint(),
-    };
-};
-
-const flushWorld = async (world: InMemoryTurnWorld, hooks?: TurnDaemonHooks): Promise<void> => {
-    if (!hooks?.flushChanges) {
-        return;
-    }
-    await hooks.flushChanges(buildFlushResult(world));
-};
-
 let itemRegistryPromise: Promise<Map<string, ItemModule>> | null = null;
 
 const getItemRegistry = async (): Promise<Map<string, ItemModule>> => {
@@ -67,29 +48,35 @@ const readMetaNumber = (meta: Record<string, unknown>, key: string, fallback: nu
 
 interface CommandHandlerContext {
     world: InMemoryTurnWorld;
-    hooks?: TurnDaemonHooks;
+    commandDb?: GamePrisma.TransactionClient;
     auctionFinalizer?: AuctionFinalizer;
     auctionBidder?: AuctionBidder;
     tournamentRewardFinalizer?: TournamentRewardFinalizer;
 }
 
 interface AuctionFinalizer {
-    finalize(auctionId: number): Promise<TurnDaemonCommandResult>;
+    finalize(auctionId: number, db?: GamePrisma.TransactionClient): Promise<TurnDaemonCommandResult>;
 }
 
 interface AuctionBidder {
-    bid(command: Extract<TurnDaemonCommand, { type: 'auctionBid' }>): Promise<TurnDaemonCommandResult>;
+    bid(
+        command: Extract<TurnDaemonCommand, { type: 'auctionBid' }>,
+        db?: GamePrisma.TransactionClient
+    ): Promise<TurnDaemonCommandResult>;
 }
 
 interface TournamentRewardFinalizer {
-    finalize(command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>): Promise<TurnDaemonCommandResult>;
+    finalize(
+        command: Extract<TurnDaemonCommand, { type: 'tournamentReward' }>,
+        db?: GamePrisma.TransactionClient
+    ): Promise<TurnDaemonCommandResult>;
 }
 
 async function handleSetNationMeta(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'setNationMeta' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const nation = world.getNationById(command.nationId);
     if (!nation) {
         return {
@@ -122,7 +109,6 @@ async function handleSetNationMeta(
     world.updateNation(command.nationId, {
         meta: nextMeta,
     });
-    await flushWorld(world, hooks);
     return {
         type: 'setNationMeta',
         ok: true,
@@ -135,7 +121,7 @@ async function handleAdjustGeneralResources(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'adjustGeneralResources' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     if (!command.adjustments || command.adjustments.length === 0) {
         return { type: 'adjustGeneralResources', ok: false, reason: '조정 대상이 없습니다.' };
     }
@@ -176,8 +162,6 @@ async function handleAdjustGeneralResources(
         totalGoldDelta += goldDelta;
         totalRiceDelta += riceDelta;
     }
-
-    await flushWorld(world, hooks);
     return {
         type: 'adjustGeneralResources',
         ok: true,
@@ -192,7 +176,7 @@ async function handleAdjustGeneralMeta(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'adjustGeneralMeta' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     if (!command.adjustments || command.adjustments.length === 0) {
         return {
             type: 'adjustGeneralMeta',
@@ -224,8 +208,6 @@ async function handleAdjustGeneralMeta(
         world.updateGeneral(adjustment.generalId, { meta: nextMeta });
         processed += 1;
     }
-
-    await flushWorld(world, hooks);
     return {
         type: 'adjustGeneralMeta',
         ok: true,
@@ -238,7 +220,7 @@ async function handleTournamentMatchResult(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'tournamentMatchResult' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const resolvePrefix = (type: number): string => {
         switch (type) {
             case 1:
@@ -342,8 +324,6 @@ async function handleTournamentMatchResult(
         nextMeta[rankKey('g')] = defenderG + defenderGDelta;
         world.updateGeneral(defender.id, { meta: nextMeta });
     }
-
-    await flushWorld(world, hooks);
     return {
         type: 'tournamentMatchResult',
         ok: true,
@@ -358,7 +338,7 @@ async function handlePatchGeneral(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'patchGeneral' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -396,7 +376,6 @@ async function handlePatchGeneral(
     }
 
     world.updateGeneral(command.generalId, patch);
-    await flushWorld(world, hooks);
     return { type: 'patchGeneral', ok: true, generalId: command.generalId };
 }
 
@@ -404,7 +383,7 @@ async function handleTroopJoin(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'troopJoin' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -448,7 +427,6 @@ async function handleTroopJoin(
     world.updateGeneral(command.generalId, {
         troopId: command.troopId,
     });
-    await flushWorld(world, hooks);
     return {
         type: 'troopJoin',
         ok: true,
@@ -461,7 +439,7 @@ async function handleTroopExit(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'troopExit' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -484,7 +462,6 @@ async function handleTroopExit(
         world.updateGeneral(command.generalId, {
             troopId: 0,
         });
-        await flushWorld(world, hooks);
         return {
             type: 'troopExit',
             ok: true,
@@ -499,7 +476,6 @@ async function handleTroopExit(
         world.updateGeneral(member.id, { troopId: 0 });
     }
     world.removeTroop(troopId);
-    await flushWorld(world, hooks);
     return {
         type: 'troopExit',
         ok: true,
@@ -512,7 +488,7 @@ async function handleDieOnPrestart(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'dieOnPrestart' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -533,7 +509,6 @@ async function handleDieOnPrestart(
     }
 
     world.removeGeneral(command.generalId);
-    await flushWorld(world, hooks);
     return { type: 'dieOnPrestart', ok: true, generalId: command.generalId };
 }
 
@@ -619,7 +594,7 @@ async function handleSetMySetting(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'setMySetting' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -635,7 +610,6 @@ async function handleSetMySetting(
             ...command.settings,
         },
     });
-    await flushWorld(world, hooks);
     return { type: 'setMySetting', ok: true, generalId: command.generalId };
 }
 
@@ -643,7 +617,7 @@ async function handleDropItem(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'dropItem' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return { type: 'dropItem', ok: false, generalId: command.generalId, reason: '장수 정보를 찾을 수 없습니다.' };
@@ -664,7 +638,6 @@ async function handleDropItem(
             items,
         },
     });
-    await flushWorld(world, hooks);
     return { type: 'dropItem', ok: true, generalId: command.generalId };
 }
 
@@ -680,7 +653,7 @@ async function handleAuctionFinalize(
             reason: '경매 확정기가 준비되지 않았습니다.',
         };
     }
-    return ctx.auctionFinalizer.finalize(command.auctionId);
+    return ctx.auctionFinalizer.finalize(command.auctionId, ctx.commandDb);
 }
 
 async function handleAuctionBid(
@@ -695,14 +668,14 @@ async function handleAuctionBid(
             reason: '경매 입찰기가 준비되지 않았습니다.',
         };
     }
-    return ctx.auctionBidder.bid(command);
+    return ctx.auctionBidder.bid(command, ctx.commandDb);
 }
 
 async function handleChangePermission(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'changePermission' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -728,8 +701,6 @@ async function handleChangePermission(
             });
         }
     }
-
-    await flushWorld(world, hooks);
     return { type: 'changePermission', ok: true, generalId: command.generalId };
 }
 
@@ -737,7 +708,7 @@ async function handleKick(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'kick' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return { type: 'kick', ok: false, generalId: command.generalId, reason: '장수 정보를 찾을 수 없습니다.' };
@@ -761,8 +732,6 @@ async function handleKick(
         nationId: 0,
         officerLevel: 0,
     });
-
-    await flushWorld(world, hooks);
     return { type: 'kick', ok: true, generalId: command.generalId };
 }
 
@@ -770,7 +739,7 @@ async function handleAppoint(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'appoint' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return { type: 'appoint', ok: false, generalId: command.generalId, reason: '장수 정보를 찾을 수 없습니다.' };
@@ -825,8 +794,6 @@ async function handleAppoint(
             });
         }
     }
-
-    await flushWorld(world, hooks);
     return { type: 'appoint', ok: true, generalId: command.generalId };
 }
 
@@ -834,7 +801,7 @@ async function handleTournamentRefund(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'tournamentRefund' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     if (!command.refunds || command.refunds.length === 0) {
         return {
             type: 'tournamentRefund',
@@ -866,8 +833,6 @@ async function handleTournamentRefund(
         processed += 1;
         totalRefund += refund.amount;
     }
-
-    await flushWorld(world, hooks);
     return {
         type: 'tournamentRefund',
         ok: true,
@@ -882,7 +847,7 @@ async function handleTournamentBettingPayout(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'tournamentBettingPayout' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     if (!command.payouts || command.payouts.length === 0) {
         return {
             type: 'tournamentBettingPayout',
@@ -935,8 +900,6 @@ async function handleTournamentBettingPayout(
         nextMeta[betwingoldKey] = currentBetwingold + delta.betwingold;
         world.updateGeneral(generalId, { meta: nextMeta });
     }
-
-    await flushWorld(world, hooks);
     return {
         type: 'tournamentBettingPayout',
         ok: true,
@@ -960,7 +923,7 @@ async function handleTournamentReward(
             reason: '보상 처리기가 준비되지 않았습니다.',
         };
     }
-    return ctx.tournamentRewardFinalizer.finalize(command);
+    return ctx.tournamentRewardFinalizer.finalize(command, ctx.commandDb);
 }
 
 // 설문 보상은 API에서 전달된 RNG 결과를 재검증한 뒤 월드에 반영한다.
@@ -968,7 +931,7 @@ async function handleVoteReward(
     ctx: CommandHandlerContext,
     command: Extract<TurnDaemonCommand, { type: 'voteReward' }>
 ): Promise<TurnDaemonCommandResult> {
-    const { world, hooks } = ctx;
+    const { world } = ctx;
     const general = world.getGeneralById(command.generalId);
     if (!general) {
         return {
@@ -1153,7 +1116,6 @@ async function handleVoteReward(
     }
 
     world.updateGeneral(command.generalId, patch);
-    await flushWorld(world, hooks);
     return {
         type: 'voteReward',
         ok: true,
@@ -1166,54 +1128,81 @@ async function handleVoteReward(
 
 export const createTurnDaemonCommandHandler = (options: {
     world: InMemoryTurnWorld;
-    hooks?: TurnDaemonHooks;
     auctionFinalizer?: AuctionFinalizer;
     auctionBidder?: AuctionBidder;
     tournamentRewardFinalizer?: TournamentRewardFinalizer;
 }): TurnDaemonCommandHandler => {
-    const ctx = {
+    const ctx: CommandHandlerContext = {
         world: options.world,
-        hooks: options.hooks,
         auctionFinalizer: options.auctionFinalizer,
         auctionBidder: options.auctionBidder,
         tournamentRewardFinalizer: options.tournamentRewardFinalizer,
     };
 
-    type HandlerMap = Partial<Record<TurnDaemonCommand['type'], (command: TurnDaemonCommand) => Promise<TurnDaemonCommandResult>>>;
+    type HandlerMap = Partial<
+        Record<TurnDaemonCommand['type'], (command: TurnDaemonCommand) => Promise<TurnDaemonCommandResult>>
+    >;
 
     const handlers: HandlerMap = {
         troopJoin: (command) => handleTroopJoin(ctx, command as Extract<TurnDaemonCommand, { type: 'troopJoin' }>),
         troopExit: (command) => handleTroopExit(ctx, command as Extract<TurnDaemonCommand, { type: 'troopExit' }>),
-        dieOnPrestart: (command) => handleDieOnPrestart(ctx, command as Extract<TurnDaemonCommand, { type: 'dieOnPrestart' }>),
-        buildNationCandidate: (command) => handleBuildNationCandidate(ctx, command as Extract<TurnDaemonCommand, { type: 'buildNationCandidate' }>),
-        instantRetreat: (command) => handleInstantRetreat(ctx, command as Extract<TurnDaemonCommand, { type: 'instantRetreat' }>),
+        dieOnPrestart: (command) =>
+            handleDieOnPrestart(ctx, command as Extract<TurnDaemonCommand, { type: 'dieOnPrestart' }>),
+        buildNationCandidate: (command) =>
+            handleBuildNationCandidate(ctx, command as Extract<TurnDaemonCommand, { type: 'buildNationCandidate' }>),
+        instantRetreat: (command) =>
+            handleInstantRetreat(ctx, command as Extract<TurnDaemonCommand, { type: 'instantRetreat' }>),
         vacation: (command) => handleVacation(ctx, command as Extract<TurnDaemonCommand, { type: 'vacation' }>),
-        setMySetting: (command) => handleSetMySetting(ctx, command as Extract<TurnDaemonCommand, { type: 'setMySetting' }>),
+        setMySetting: (command) =>
+            handleSetMySetting(ctx, command as Extract<TurnDaemonCommand, { type: 'setMySetting' }>),
         dropItem: (command) => handleDropItem(ctx, command as Extract<TurnDaemonCommand, { type: 'dropItem' }>),
-        auctionFinalize: (command) => handleAuctionFinalize(ctx, command as Extract<TurnDaemonCommand, { type: 'auctionFinalize' }>),
+        auctionFinalize: (command) =>
+            handleAuctionFinalize(ctx, command as Extract<TurnDaemonCommand, { type: 'auctionFinalize' }>),
         auctionBid: (command) => handleAuctionBid(ctx, command as Extract<TurnDaemonCommand, { type: 'auctionBid' }>),
-        changePermission: (command) => handleChangePermission(ctx, command as Extract<TurnDaemonCommand, { type: 'changePermission' }>),
+        changePermission: (command) =>
+            handleChangePermission(ctx, command as Extract<TurnDaemonCommand, { type: 'changePermission' }>),
         kick: (command) => handleKick(ctx, command as Extract<TurnDaemonCommand, { type: 'kick' }>),
         appoint: (command) => handleAppoint(ctx, command as Extract<TurnDaemonCommand, { type: 'appoint' }>),
-        tournamentRefund: (command) => handleTournamentRefund(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentRefund' }>),
-        tournamentBettingPayout: (command) => handleTournamentBettingPayout(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentBettingPayout' }>),
-        tournamentReward: (command) => handleTournamentReward(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentReward' }>),
+        tournamentRefund: (command) =>
+            handleTournamentRefund(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentRefund' }>),
+        tournamentBettingPayout: (command) =>
+            handleTournamentBettingPayout(
+                ctx,
+                command as Extract<TurnDaemonCommand, { type: 'tournamentBettingPayout' }>
+            ),
+        tournamentReward: (command) =>
+            handleTournamentReward(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentReward' }>),
         voteReward: (command) => handleVoteReward(ctx, command as Extract<TurnDaemonCommand, { type: 'voteReward' }>),
-        setNationMeta: (command) => handleSetNationMeta(ctx, command as Extract<TurnDaemonCommand, { type: 'setNationMeta' }>),
-        adjustGeneralResources: (command) => handleAdjustGeneralResources(ctx, command as Extract<TurnDaemonCommand, { type: 'adjustGeneralResources' }>),
-        adjustGeneralMeta: (command) => handleAdjustGeneralMeta(ctx, command as Extract<TurnDaemonCommand, { type: 'adjustGeneralMeta' }>),
+        setNationMeta: (command) =>
+            handleSetNationMeta(ctx, command as Extract<TurnDaemonCommand, { type: 'setNationMeta' }>),
+        adjustGeneralResources: (command) =>
+            handleAdjustGeneralResources(
+                ctx,
+                command as Extract<TurnDaemonCommand, { type: 'adjustGeneralResources' }>
+            ),
+        adjustGeneralMeta: (command) =>
+            handleAdjustGeneralMeta(ctx, command as Extract<TurnDaemonCommand, { type: 'adjustGeneralMeta' }>),
         tournamentMatchResult: (command) =>
             handleTournamentMatchResult(ctx, command as Extract<TurnDaemonCommand, { type: 'tournamentMatchResult' }>),
-        patchGeneral: (command) => handlePatchGeneral(ctx, command as Extract<TurnDaemonCommand, { type: 'patchGeneral' }>),
+        patchGeneral: (command) =>
+            handlePatchGeneral(ctx, command as Extract<TurnDaemonCommand, { type: 'patchGeneral' }>),
     };
 
     return {
-        handle: async (command): Promise<TurnDaemonCommandResult | null> => {
+        handle: async (
+            command,
+            executionContext?: TurnDaemonCommandExecutionContext
+        ): Promise<TurnDaemonCommandResult | null> => {
             const handler = handlers[command.type];
             if (!handler) {
                 return null;
             }
-            return handler(command);
+            ctx.commandDb = executionContext?.db;
+            try {
+                return await handler(command);
+            } finally {
+                ctx.commandDb = undefined;
+            }
         },
     };
 };

app/game-engine/test/databaseCommandQueue.integration.test.ts

@@ -0,0 +1,95 @@
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import { createGamePostgresConnector, GamePrisma, type GamePrismaClient } from '@sammo-ts/infra';
+
+import { DatabaseTurnDaemonCommandQueue } from '../src/lifecycle/databaseCommandQueue.js';
+
+const databaseUrl = process.env.INPUT_EVENT_DATABASE_URL;
+const integration = describe.skipIf(!databaseUrl);
+
+integration('database command queue', () => {
+    let close: (() => Promise<void>) | undefined;
+    let db: GamePrismaClient;
+
+    beforeAll(async () => {
+        const connector = createGamePostgresConnector({ url: databaseUrl! });
+        await connector.connect();
+        db = connector.prisma;
+        close = () => connector.disconnect();
+        await db.inputEvent.deleteMany({
+            where: { requestId: { startsWith: 'integration:engine:' } },
+        });
+    });
+
+    afterAll(async () => {
+        await db.inputEvent.deleteMany({
+            where: { requestId: { startsWith: 'integration:engine:' } },
+        });
+        await close?.();
+    });
+
+    it('claims one durable event only once across concurrent consumers and persists its result', async () => {
+        const requestId = 'integration:engine:claim-once';
+        await db.inputEvent.create({
+            data: {
+                requestId,
+                target: 'ENGINE',
+                eventType: 'vacation',
+                payload: { type: 'vacation', requestId, generalId: 7 } as GamePrisma.InputJsonValue,
+            },
+        });
+
+        const first = new DatabaseTurnDaemonCommandQueue(db);
+        const second = new DatabaseTurnDaemonCommandQueue(db);
+        const [firstCommands, secondCommands] = await Promise.all([first.drain(), second.drain()]);
+        const commands = firstCommands.concat(secondCommands);
+
+        expect(commands).toEqual([{ type: 'vacation', requestId, generalId: 7 }]);
+        await first.publishCommandResult(requestId, { type: 'vacation', ok: true, generalId: 7 });
+
+        const stored = await db.inputEvent.findUniqueOrThrow({ where: { requestId } });
+        expect(stored).toMatchObject({
+            status: 'SUCCEEDED',
+            attempts: 1,
+            result: { type: 'vacation', ok: true, generalId: 7 },
+        });
+    });
+
+    it('recovers only an expired processing lease', async () => {
+        const expiredId = 'integration:engine:expired';
+        const activeId = 'integration:engine:active';
+        await db.inputEvent.createMany({
+            data: [
+                {
+                    requestId: expiredId,
+                    target: 'ENGINE',
+                    eventType: 'vacation',
+                    payload: { type: 'vacation', requestId: expiredId, generalId: 8 } as GamePrisma.InputJsonValue,
+                    status: 'PROCESSING',
+                    processingAt: new Date(Date.now() - 120_000),
+                    lockedBy: 'dead-worker',
+                    leaseUntil: new Date(Date.now() - 60_000),
+                },
+                {
+                    requestId: activeId,
+                    target: 'ENGINE',
+                    eventType: 'vacation',
+                    payload: { type: 'vacation', requestId: activeId, generalId: 9 } as GamePrisma.InputJsonValue,
+                    status: 'PROCESSING',
+                    processingAt: new Date(),
+                    lockedBy: 'active-worker',
+                    leaseUntil: new Date(Date.now() + 60_000),
+                },
+            ],
+        });
+
+        const queue = new DatabaseTurnDaemonCommandQueue(db);
+        await queue.initialize();
+        const commands = await queue.drain();
+
+        expect(commands).toEqual([{ type: 'vacation', requestId: expiredId, generalId: 8 }]);
+        expect(await db.inputEvent.findUniqueOrThrow({ where: { requestId: activeId } })).toMatchObject({
+            status: 'PROCESSING',
+            lockedBy: 'active-worker',
+        });
+    });
+});

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

@@ -0,0 +1,285 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import {
+    InMemoryControlQueue,
+    ManualClock,
+    TurnDaemonLifecycle,
+    type TurnDaemonCommandResult,
+    type TurnProcessor,
+    type TurnStateStore,
+} from '../src/index.js';
+import { InMemoryReservedTurnStore } from '../src/turn/reservedTurnStore.js';
+
+const createStateStore = (): TurnStateStore => ({
+    loadLastTurnTime: async () => new Date('2026-01-01T00:00:00.000Z'),
+    loadNextGeneralTurnTime: async () => null,
+    saveLastTurnTime: async () => {},
+    loadCheckpoint: async () => undefined,
+    saveCheckpoint: async () => {},
+});
+
+const processor: TurnProcessor = {
+    run: async () => {
+        throw new Error('scheduled turn must not run in this test');
+    },
+};
+
+describe('input event atomicity', () => {
+    it('keeps reserved-turn dirty state when persistence fails', async () => {
+        let failCreate = true;
+        const prisma = {
+            generalTurn: {
+                findMany: vi.fn(async () => []),
+                deleteMany: vi.fn(async () => ({ count: 0 })),
+                createMany: vi.fn(async () => {
+                    if (failCreate) {
+                        throw new Error('injected write failure');
+                    }
+                    return { count: 1 };
+                }),
+            },
+            nationTurn: {
+                findMany: vi.fn(async () => []),
+                deleteMany: vi.fn(async () => ({ count: 0 })),
+                createMany: vi.fn(async () => ({ count: 0 })),
+            },
+        };
+        const store = new InMemoryReservedTurnStore(prisma, {
+            maxGeneralTurns: 1,
+            maxNationTurns: 1,
+        });
+        store.shiftGeneralTurns(7, -1);
+
+        await expect(store.flushChanges()).rejects.toThrow('injected write failure');
+        expect(store.peekDirtyState()).toEqual({ generalIds: [7], nationKeys: [] });
+
+        failCreate = false;
+        await store.flushChanges();
+        expect(store.peekDirtyState()).toEqual({ generalIds: [], nationKeys: [] });
+    });
+
+    it('dispatches registry mutations that the old lifecycle switch dropped, then commits before responding', async () => {
+        const queue = new InMemoryControlQueue();
+        const order: string[] = [];
+        const result: TurnDaemonCommandResult = {
+            type: 'auctionBid',
+            ok: true,
+            auctionId: 3,
+            closeAt: '2026-01-01T00:10:00.000Z',
+        };
+        let resolveResponse: (() => void) | undefined;
+        const responded = new Promise<void>((resolve) => {
+            resolveResponse = resolve;
+        });
+        const lifecycle = new TurnDaemonLifecycle(
+            {
+                clock: new ManualClock(new Date('2026-01-01T00:00:00.000Z').getTime()),
+                controlQueue: queue,
+                getNextTickTime: () => new Date('2026-01-01T01:00:00.000Z'),
+                stateStore: createStateStore(),
+                processor,
+                commandHandler: {
+                    handle: async (command) => {
+                        order.push(`handle:${command.type}`);
+                        return result;
+                    },
+                },
+                hooks: {
+                    commitCommand: async (requestId, committedResult) => {
+                        order.push(`commit:${requestId}:${committedResult.type}`);
+                    },
+                },
+                commandResponder: {
+                    publishStatus: async () => {},
+                    publishCommandResult: async (requestId, response) => {
+                        order.push(`respond:${requestId}:${response.type}`);
+                        resolveResponse?.();
+                    },
+                },
+            },
+            {
+                profile: 'test',
+                defaultBudget: { budgetMs: 100, maxGenerals: 1, catchUpCap: 1 },
+            }
+        );
+
+        queue.enqueue({
+            type: 'auctionBid',
+            requestId: 'event-1',
+            auctionId: 3,
+            generalId: 7,
+            amount: 1000,
+        });
+        const loop = lifecycle.start();
+        await responded;
+
+        expect(order).toEqual(['handle:auctionBid', 'commit:event-1:auctionBid', 'respond:event-1:auctionBid']);
+
+        await lifecycle.stop('done');
+        await loop;
+    });
+
+    it('runs a mutation inside the database-owned execution boundary before responding', async () => {
+        const queue = new InMemoryControlQueue();
+        const order: string[] = [];
+        let resolveResponse: (() => void) | undefined;
+        const responded = new Promise<void>((resolve) => {
+            resolveResponse = resolve;
+        });
+        const lifecycle = new TurnDaemonLifecycle(
+            {
+                clock: new ManualClock(new Date('2026-01-01T00:00:00.000Z').getTime()),
+                controlQueue: queue,
+                getNextTickTime: () => new Date('2026-01-01T01:00:00.000Z'),
+                stateStore: createStateStore(),
+                processor,
+                commandHandler: {
+                    handle: async (command) => {
+                        order.push(`handle:${command.type}`);
+                        return { type: 'vacation', ok: true, generalId: 7 };
+                    },
+                },
+                hooks: {
+                    executeCommand: async (requestId, execute) => {
+                        order.push(`transaction:${requestId}:begin`);
+                        const result = await execute({});
+                        order.push(`transaction:${requestId}:commit`);
+                        return result;
+                    },
+                    commitCommand: async () => {
+                        order.push('legacy-commit');
+                    },
+                },
+                commandResponder: {
+                    publishStatus: async () => {},
+                    publishCommandResult: async () => {
+                        order.push('respond');
+                        resolveResponse?.();
+                    },
+                },
+            },
+            {
+                profile: 'test',
+                defaultBudget: { budgetMs: 100, maxGenerals: 1, catchUpCap: 1 },
+            }
+        );
+
+        queue.enqueue({ type: 'vacation', requestId: 'event-uow', generalId: 7 });
+        const loop = lifecycle.start();
+        await responded;
+
+        expect(order).toEqual([
+            'transaction:event-uow:begin',
+            'handle:vacation',
+            'transaction:event-uow:commit',
+            'respond',
+        ]);
+
+        await lifecycle.stop('done');
+        await loop;
+    });
+
+    it('pauses without publishing success when the atomic command commit fails', async () => {
+        const queue = new InMemoryControlQueue();
+        let resolveError: (() => void) | undefined;
+        const errorObserved = new Promise<void>((resolve) => {
+            resolveError = resolve;
+        });
+        const publishCommandResult = vi.fn(async () => {});
+        const lifecycle = new TurnDaemonLifecycle(
+            {
+                clock: new ManualClock(new Date('2026-01-01T00:00:00.000Z').getTime()),
+                controlQueue: queue,
+                getNextTickTime: () => new Date('2026-01-01T01:00:00.000Z'),
+                stateStore: createStateStore(),
+                processor,
+                commandHandler: {
+                    handle: async () => ({ type: 'vacation', ok: true, generalId: 7 }),
+                },
+                hooks: {
+                    commitCommand: async () => {
+                        throw new Error('injected commit failure');
+                    },
+                    onRunError: async () => {
+                        resolveError?.();
+                    },
+                },
+                commandResponder: {
+                    publishStatus: async () => {},
+                    publishCommandResult,
+                },
+            },
+            {
+                profile: 'test',
+                defaultBudget: { budgetMs: 100, maxGenerals: 1, catchUpCap: 1 },
+            }
+        );
+
+        queue.enqueue({ type: 'vacation', requestId: 'event-2', generalId: 7 });
+        const loop = lifecycle.start();
+        await errorObserved;
+
+        expect(lifecycle.getStatus()).toMatchObject({
+            state: 'paused',
+            paused: true,
+            lastError: 'injected commit failure',
+        });
+        expect(publishCommandResult).not.toHaveBeenCalled();
+
+        await lifecycle.stop('done');
+        await loop;
+    });
+
+    it('pauses without committing or acknowledging a handler that throws after changing memory', async () => {
+        const queue = new InMemoryControlQueue();
+        let resolveError: (() => void) | undefined;
+        const errorObserved = new Promise<void>((resolve) => {
+            resolveError = resolve;
+        });
+        const commitCommand = vi.fn(async () => {});
+        const publishCommandResult = vi.fn(async () => {});
+        const lifecycle = new TurnDaemonLifecycle(
+            {
+                clock: new ManualClock(new Date('2026-01-01T00:00:00.000Z').getTime()),
+                controlQueue: queue,
+                getNextTickTime: () => new Date('2026-01-01T01:00:00.000Z'),
+                stateStore: createStateStore(),
+                processor,
+                commandHandler: {
+                    handle: async () => {
+                        throw new Error('injected handler failure');
+                    },
+                },
+                hooks: {
+                    commitCommand,
+                    onRunError: async () => {
+                        resolveError?.();
+                    },
+                },
+                commandResponder: {
+                    publishStatus: async () => {},
+                    publishCommandResult,
+                },
+            },
+            {
+                profile: 'test',
+                defaultBudget: { budgetMs: 100, maxGenerals: 1, catchUpCap: 1 },
+            }
+        );
+
+        queue.enqueue({ type: 'vacation', requestId: 'event-3', generalId: 7 });
+        const loop = lifecycle.start();
+        await errorObserved;
+
+        expect(lifecycle.getStatus()).toMatchObject({
+            state: 'paused',
+            paused: true,
+            lastError: 'injected handler failure',
+        });
+        expect(commitCommand).not.toHaveBeenCalled();
+        expect(publishCommandResult).not.toHaveBeenCalled();
+
+        await lifecycle.stop('done');
+        await loop;
+    });
+});

docs/architecture/runtime.md

@@ -82,32 +82,37 @@ Gateway runs a lightweight cron loop (setInterval) that:
 ## Current Implementation Status
 
 - Turn daemon lifecycle + in-memory state live in `app/game-engine` with DB flush hooks.
-- Redis transport for daemon control is implemented and wired into the daemon.
-- API server already exposes turn-daemon commands (run/pause/resume/status) via tRPC, communicating via Redis Streams.
-- API server writes reserved turns and messages directly to the DB; daemon focuses on world state/logs.
+- 모든 tRPC mutation은 PostgreSQL `input_event` 경계에서 request ID와 처리
+  상태를 기록한다.
+- 월드 mutation과 daemon control은 PostgreSQL inbox로 전달된다. Redis는
+  더 이상 이 명령들의 영속 큐가 아니며 realtime/battle-sim 전송에만 남아
+  있다.
+- API가 직접 변경하는 예약 턴·메시지 등의 DB 쓰기는 API input event 완료와
+  같은 transaction에서 commit된다.
+- 엔진 명령은 도메인 DB 쓰기, in-memory world flush, 예약 턴, 로그, 결과
+  저장과 inbox 완료를 하나의 transaction으로 commit한다.
 
 ## Turn Daemon and API Server Behavior (Outline)
 
 - Turn daemon responsibilities: scheduling, turn resolution, state persistence
 - API server responsibilities: query/command intake, validation, response shaping
 - Concurrency model between daemon and API server
-- Communication channel: Redis Stream or Redis pub/sub
+- Durable command channel: PostgreSQL `input_event`
 - Client updates: SSE between API server and frontend where appropriate
 
-## Redis Communication Recommendation (Draft)
+## Durable Input Event Split
 
-Use Redis Streams for daemon control and mutation requests, and Redis pub/sub
-for transient fan-out events. Streams provide durability, backpressure, and
-replay while pub/sub keeps live updates simple and low-latency.
+PostgreSQL is the source of truth for accepted input. Redis pub/sub remains a
+best-effort notification/fan-out path and must not decide whether a gameplay
+mutation was committed.
 
 ### Recommended Split
 
-- Redis Streams:
-    - API server -> daemon: mutation requests, turn-run commands.
-    - Daemon -> API server: run status events, job results, error reports.
-    - Use consumer groups for daemon workers and API server listeners.
-    - Require `requestId` for correlation and idempotency.
-    - Ack on success; move failed items to a dead-letter stream after retry.
+- PostgreSQL `input_event`:
+    - API mutation acceptance, idempotency, attempts and audit state.
+    - API server -> daemon mutation/control payloads and durable results.
+    - `FOR UPDATE SKIP LOCKED` claim plus worker lease for concurrent consumers.
+    - engine result and gameplay state commit in the same transaction.
 - Redis pub/sub:
     - Daemon -> API server: low-stakes live update signals (run started/ended).
     - API server -> frontend: SSE fan-out triggered by pub/sub updates.
@@ -115,11 +120,11 @@ replay while pub/sub keeps live updates simple and low-latency.
 
 ### Operational Notes
 
-- Stream keys should be namespaced per server+scenario profile.
-- Use bounded stream length (`MAXLEN`) to cap storage.
-- API server should guard against duplicate processing by `requestId`.
-- When the daemon is busy, API queues new mutations to stream and responds
-  with an accepted status to clients.
+- 각 profile은 별도 game DB schema/connection을 사용한다.
+- HTTP `Idempotency-Key`(없으면 Fastify request ID)와 tRPC path를 합친 값이
+  API input event key다.
+- 처리 중 lease가 만료된 engine event만 `PENDING`으로 회수한다.
+- 완료 event 보존/정리 기간과 `FAILED` 재처리 운영 정책은 별도로 정해야 한다.
 
 Detailed lifecycle and control flow are defined in
 `docs/architecture/turn-daemon-lifecycle.md`.
@@ -167,13 +172,14 @@ also supports local ID/password login for users who cannot use Kakao.
       immediately even if requests remain queued.
 - While the daemon is resolving a turn, the API server queues incoming requests.
 
-Note: the current implementation does not yet process API mutation requests
-between turns; only control commands are handled by the in-process queue.
+현재 구현은 control 명령과 registry의 모든 world mutation을 같은 DB queue로
+읽어 턴 사이에 처리한다.
 
 ### Daemon Control Contract (Draft)
 
-API server commands are delivered to the daemon over the control channel
-(Redis Stream or in-process). The daemon replies with status and run events.
+API server commands are inserted into PostgreSQL `input_event`; the daemon
+stores status/results on the same row. An in-process queue remains available
+for tests and internal signals.
 
 ```ts
 export type RunReason = 'schedule' | 'manual' | 'poke';
@@ -193,19 +199,17 @@ export type DaemonEvent =
 
 ### API Server Flow
 
-- The API server validates queries/commands and writes them to Redis Streams
-  or Redis pub/sub.
+- The API server validates commands and records every tRPC mutation in
+  PostgreSQL.
 - After a request is processed, the API server returns the result to clients.
 - Read-only queries may access the DBMS directly.
 - The API server may use SSE to stream live updates to the frontend.
 
 ### Queue and Rate Limits
 
-- API server requests are delivered to the daemon via Redis Streams or
-  Redis pub/sub.
-- Redis Stream mutation requests are rate-limited per user.
-    - Each user can have up to 30 pending mutation requests.
-    - Additional requests are rejected once the limit is exceeded.
+- Engine-owned requests are delivered through the PostgreSQL inbox.
+- Per-user pending limits and event retention remain operational follow-up
+  work; idempotency and exclusive claim are implemented.
 
 ### In-Memory and DBMS Flush
 

docs/architecture/todo.md

@@ -8,14 +8,14 @@ Move items into the main docs once they are finalized.
 - [AI suggestion] Make profile turn execution a durable single-writer contract:
   add a DB-backed lease with fencing epoch/world version, and reject stale
   daemon commits after a restart or split-brain.
-- [AI suggestion] Replace the current destructive dirty-state drain and
-  multi-query flush with bounded atomic batches. Persist entity deltas, logs,
-  reserved turns, checkpoint, and outbox events in one transaction, then clear
-  dirty state only after commit.
-- [AI suggestion] Introduce durable command inbox/outbox records with unique
-  request IDs, idempotent results, and per-profile ordering. Keep Redis as a
-  wake-up/fan-out layer, or add consumer groups, ACK/pending recovery, DLQ, and
-  stream trimming if Redis Streams remain the command source.
+- [AI suggestion] Bound very large world flush batches and add a transactional
+  realtime outbox. Entity deltas, logs, reserved turns, checkpoint and input
+  results are atomic now, but realtime publication remains post-commit
+  best-effort.
+- [AI suggestion] Define `input_event` retention, failed-event inspection/DLQ,
+  manual replay authorization and per-user pending limits. Durable request IDs,
+  idempotent results, ordering, exclusive claim and expired-lease recovery are
+  implemented.
 - [AI suggestion] Add ownership authorization to all turn reservation
   procedures (`auth user -> owned general -> current officer role -> nation`)
   and add revision/optimistic concurrency to reservation queue updates.

docs/architecture/turn-daemon-lifecycle.md

@@ -8,14 +8,15 @@ from the API server.
 
 - One daemon process per server+scenario profile.
 - API server is the only ingress for user/admin requests.
-- The daemon owns world-state mutations; the API server mutates reserved turns and messages.
+- The daemon owns world-state mutations; the API server mutates reserved turns
+  and messages inside the common API input-event transaction.
 
 ## Current Implementation Status
 
-- The daemon loop handles scheduled runs plus Redis-based control queue commands
+- The daemon loop handles scheduled runs plus PostgreSQL inbox control commands
   (run/pause/resume/shutdown/getStatus).
 - API mutation requests (troopJoin, vacation, etc.) are drained and handled by the daemon loop between turns.
-- `getStatus` is fully supported and responds via Redis.
+- `getStatus` and command results are stored durably on their input-event row.
 - API server currently writes reserved turns and messages directly to the DB.
 
 ## Responsibilities
@@ -47,8 +48,7 @@ Idle -> Running -> Flushing -> Idle
 The daemon interleaves API request handling between scheduled turn executions.
 API requests are drained until the next turn time is reached; once the turn
 starts, incoming requests are queued and processed after the run.
-Current implementation does not yet drain API requests between turns; this
-section is the intended target behavior.
+The current implementation follows this interleaving model.
 
 ```ts
 while (!stopping) {
@@ -101,7 +101,7 @@ Minimum checkpoint data:
 
 ## API Server Interaction
 
-- API server enqueues mutations and pokes the daemon.
+- API server inserts mutations and pokes into the PostgreSQL inbox.
 - Read-only queries can read from DBMS or a read model.
 - During `running`, incoming requests are queued and processed after the run.
 
@@ -171,7 +171,8 @@ Admin controls should toggle `paused`, trigger manual run, and request catch-up.
 
 ### Daemon Control Contract (Draft)
 
-API server to daemon control messages (Redis Stream or in-process channel):
+API server to daemon control payloads (PostgreSQL inbox or in-process test
+channel):
 
 ```ts
 export type RunReason = 'schedule' | 'manual' | 'poke';
@@ -192,9 +193,33 @@ export type DaemonEvent =
 ## Recovery and Shutdown
 
 - On startup, load `game_env.turntime` and catch up to `now`.
+- Claim pending input events with `FOR UPDATE SKIP LOCKED`. A worker ID and
+  expiry timestamp prevent another live consumer from claiming the same event;
+  only expired processing leases return to `PENDING`.
+- A handler exception or transaction failure pauses the daemon without
+  acknowledging the event. Restart/recovery reloads world state before retry.
 - On shutdown, stop accepting new triggers, finish the current run, flush, then
   exit cleanly.
 
+## Input Event Commit Boundary
+
+For engine-owned mutations the lifecycle opens one database-owned unit of work:
+
+```text
+claim input_event
+  -> execute command against in-memory world
+  -> specialized domain DB writes (auction/tournament)
+  -> persist world/reserved turns/logs
+  -> store command result and mark input_event SUCCEEDED
+  -> commit
+  -> acknowledge in-memory dirty sets
+  -> respond
+```
+
+If any step before commit fails, PostgreSQL rolls back and dirty sets are not
+cleared. Realtime publication happens after commit and cannot roll gameplay
+state back.
+
 ## Testing with a Controlled Clock
 
 - Turn daemon tests should use a controllable `Clock` implementation (예: `ManualClock`) to

packages/common/src/turnDaemon/types.ts

@@ -43,13 +43,14 @@ export interface TurnDaemonStatus {
 export type TurnDaemonCommand =
     | {
           type: 'run';
+          requestId?: string;
           reason: RunReason;
           targetTime?: string;
           budget?: TurnRunBudget;
       }
-    | { type: 'pause'; reason?: string }
-    | { type: 'resume'; reason?: string }
-    | { type: 'shutdown'; reason?: string }
+    | { type: 'pause'; requestId?: string; reason?: string }
+    | { type: 'resume'; requestId?: string; reason?: string }
+    | { type: 'shutdown'; requestId?: string; reason?: string }
     | { type: 'getStatus'; requestId?: string }
     | { type: 'troopJoin'; requestId?: string; generalId: number; troopId: number }
     | { type: 'troopExit'; requestId?: string; generalId: number }
@@ -186,6 +187,12 @@ export type TurnDaemonCommand =
           };
 
 export type TurnDaemonCommandResult =
+    | {
+          type: 'commandRejected';
+          ok: false;
+          commandType: TurnDaemonCommand['type'];
+          reason: string;
+      }
     | {
           type: 'auctionFinalize';
           ok: true;

packages/infra/prisma/game.prisma

@@ -44,6 +44,39 @@ enum DiplomacyLetterState {
     REPLACED
 }
 
+enum InputEventStatus {
+  PENDING
+  PROCESSING
+  SUCCEEDED
+  FAILED
+}
+
+enum InputEventTarget {
+  API
+  ENGINE
+}
+
+model InputEvent {
+  sequence     BigInt           @id @default(autoincrement())
+  requestId    String           @unique @map("request_id")
+  target       InputEventTarget
+  eventType    String           @map("event_type")
+  payload      Json             @default(dbgenerated("'{}'::jsonb"))
+  actorUserId  String?          @map("actor_user_id")
+  status       InputEventStatus @default(PENDING)
+  result       Json?
+  error        String?
+  attempts     Int              @default(0)
+  lockedBy     String?          @map("locked_by")
+  leaseUntil   DateTime?        @map("lease_until")
+  createdAt    DateTime         @default(now()) @map("created_at")
+  processingAt DateTime?        @map("processing_at")
+  completedAt  DateTime?        @map("completed_at")
+
+  @@index([target, status, sequence])
+  @@map("input_event")
+}
+
 model WorldState {
     id           Int      @id @default(autoincrement())
     scenarioCode String   @map("scenario_code")

packages/infra/prisma/migrations/20260725000000_add_input_event/migration.sql

@@ -0,0 +1,25 @@
+CREATE TYPE "InputEventStatus" AS ENUM ('PENDING', 'PROCESSING', 'SUCCEEDED', 'FAILED');
+CREATE TYPE "InputEventTarget" AS ENUM ('API', 'ENGINE');
+
+CREATE TABLE "input_event" (
+    "sequence" BIGSERIAL NOT NULL,
+    "request_id" TEXT NOT NULL,
+    "target" "InputEventTarget" NOT NULL,
+    "event_type" TEXT NOT NULL,
+    "payload" JSONB NOT NULL DEFAULT '{}'::jsonb,
+    "actor_user_id" TEXT,
+    "status" "InputEventStatus" NOT NULL DEFAULT 'PENDING',
+    "result" JSONB,
+    "error" TEXT,
+    "attempts" INTEGER NOT NULL DEFAULT 0,
+    "locked_by" TEXT,
+    "lease_until" TIMESTAMP(3),
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "processing_at" TIMESTAMP(3),
+    "completed_at" TIMESTAMP(3),
+
+    CONSTRAINT "input_event_pkey" PRIMARY KEY ("sequence")
+);
+
+CREATE UNIQUE INDEX "input_event_request_id_key" ON "input_event"("request_id");
+CREATE INDEX "input_event_target_status_sequence_idx" ON "input_event"("target", "status", "sequence");

packages/infra/src/db.ts

@@ -25,4 +25,5 @@ export interface DatabaseClient {
     inheritanceLog: GamePrisma.InheritanceLogDelegate;
     inheritanceResult: GamePrisma.InheritanceResultDelegate;
     inheritanceUserState: GamePrisma.InheritanceUserStateDelegate;
+    inputEvent: GamePrisma.InputEventDelegate;
 }