perf: 프로필 DB 풀과 advisory lock 격리

역할별 PostgreSQL pool 상한과 동일 process 공유 pool을 적용하고 health 지표를 노출한다.\n\n게임 기능 advisory lock을 schema namespace로 통일하고 실제 PostgreSQL 통합 하네스를 보강한다.

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

@@ -1,6 +1,6 @@
 import { randomUUID } from 'node:crypto';
 
-import { GamePrisma, type DatabaseClient } from '@sammo-ts/infra';
+import { acquireGameSchemaAdvisoryXactLock, type DatabaseClient, type GamePrisma } from '@sammo-ts/infra';
 
 import type { TurnDaemonTransport } from './transport.js';
 import type { TurnDaemonCommand, TurnDaemonCommandResult, TurnDaemonStatus } from './types.js';
@@ -91,12 +91,8 @@ export class DatabaseTurnDaemonTransport implements TurnDaemonTransport {
         try {
             if (command.type === 'npcPossessGeneral' && this.db.$transaction) {
                 const rejectionReason = await this.db.$transaction(async (transaction) => {
-                    await transaction.$executeRaw(
-                        GamePrisma.sql`SELECT pg_advisory_xact_lock(hashtextextended('npc-possession', 1))`
-                    );
-                    await transaction.$executeRaw(
-                        GamePrisma.sql`SELECT pg_advisory_xact_lock(hashtextextended(${`npc-possession:${command.userId}`}, 1))`
-                    );
+                    await acquireGameSchemaAdvisoryXactLock(transaction, 'npc-possession:global');
+                    await acquireGameSchemaAdvisoryXactLock(transaction, `npc-possession:user:${command.userId}`);
                     const acceptedAt = new Date(Math.floor(Date.now() / 1000) * 1000);
                     const acceptedGameAt = (await loadCurrentGameTime(transaction, acceptedAt)).now;
                     const token = await transaction.npcSelectionToken.findFirst({

app/game-api/src/server.ts

@@ -379,6 +379,7 @@ export const createGameApiServer = async () => {
     app.get('/healthz', async () => ({
         ok: true,
         profile: config.profileName,
+        postgresPool: postgres.getPoolStats(),
         accountIconReconciliation: accountIconResetReconciler.getHealth(),
     }));
 

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

@@ -2,7 +2,13 @@ import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 
 import type { GameSessionTokenPayload } from '@sammo-ts/common/auth/gameToken';
 import { createTurnDaemonRuntime, seedScenarioToDatabase, type TurnDaemonRuntime } from '@sammo-ts/game-engine';
-import { createGamePostgresConnector, GamePrisma, type GamePrismaClient, type RedisConnector } from '@sammo-ts/infra';
+import {
+    acquireGameSchemaAdvisoryXactLock,
+    createGamePostgresConnector,
+    type GamePrisma,
+    type GamePrismaClient,
+    type RedisConnector,
+} from '@sammo-ts/infra';
 
 import { RedisAccessTokenStore } from '../src/auth/accessTokenStore.js';
 import { InMemoryFlushStore } from '../src/auth/flushStore.js';
@@ -446,9 +452,7 @@ integration('mode 1 NPC possession through token reservation and the durable dae
         });
         const blocker = db.$transaction(
             async (transaction) => {
-                await transaction.$executeRaw(
-                    GamePrisma.sql`SELECT pg_advisory_xact_lock(hashtextextended('npc-possession', 1))`
-                );
+                await acquireGameSchemaAdvisoryXactLock(transaction, 'npc-possession:global');
                 markLockReady();
                 await lockRelease;
             },