fix: Gateway 빌드와 마이그레이션 실행기를 분리

release build는 구성된 격리 builder로 보내고 Gateway DB migration은 runtime의 로컬 runner에서만 실행한다. 원격 build와 로컬 migration 명령 경계를 회귀 테스트로 고정한다.

app/release-controller/src/index.ts

@@ -34,7 +34,7 @@ const main = async (): Promise<void> => {
     const controller = new GatewayReleaseController(
         repository,
         workspaceManager,
-        releaseBuildRunner,
+        migrationRunner,
         processManager,
         config
     );

app/release-controller/src/releaseController.ts

@@ -146,13 +146,13 @@ export class GatewayReleaseController {
     constructor(
         private readonly repository: GatewayReleaseRepository,
         private readonly workspaceManager: GitWorkspaceManager,
-        private readonly buildRunner: BuildRunner,
+        private readonly migrationRunner: BuildRunner,
         private readonly processManager: ProcessManager,
         private readonly config: ReleaseControllerConfig,
         private readonly now: () => Date = () => new Date(),
         private readonly fetchImpl: typeof fetch = fetch
     ) {
-        this.releaseBuildRunner = createReleaseBuildRunner(config.releaseBuilderUrl, buildRunner, fetchImpl);
+        this.releaseBuildRunner = createReleaseBuildRunner(config.releaseBuilderUrl, migrationRunner, fetchImpl);
         this.artifactManager = new FrontendArtifactManager(config.frontendArtifactRoot ?? '/srv/frontend-artifacts');
     }
 
@@ -345,7 +345,7 @@ export class GatewayReleaseController {
                 : null;
         await this.appendLog(operation.id, 'migration', 'Gateway database migration을 적용합니다.');
         await this.assertOperationLease(operation.id);
-        const migration = await this.buildRunner.run(
+        const migration = await this.migrationRunner.run(
             [buildGatewayMigrationCommand(workspace.root, this.config)],
             this.buildProgress(operation.id, 'migration'),
             { signal }

app/release-controller/test/releaseController.test.ts

@@ -388,6 +388,70 @@ describe('GatewayReleaseController', () => {
         );
     });
 
+    it('runs release builds remotely while keeping Gateway migration on the runtime runner', async () => {
+        const workspace = await createReleaseWorkspace();
+        const harness = createRepository();
+        const localCommandGroups: string[][] = [];
+        const remoteRequests: Array<{ commands: Array<{ args: string[] }> }> = [];
+        const running = new Map(gatewayNames.map((name) => [name, '/srv/sammo/old']));
+        const localRunner: BuildRunner = {
+            run: async (commands) => {
+                localCommandGroups.push(commands.map((command) => command.args.join(' ')));
+                return { ok: true, exitCode: 0, output: '' };
+            },
+        };
+        const controller = new GatewayReleaseController(
+            harness.repository,
+            {
+                resolveCommit: async () => SHA,
+                prepare: async () => ({ root: workspace, created: true, needsInstall: true }),
+            } as unknown as GitWorkspaceManager,
+            localRunner,
+            {
+                list: async () =>
+                    [...running].map(([name, cwd]) => ({
+                        name,
+                        cwd,
+                        status: 'online',
+                        restartCount: 0,
+                        script: path.join(cwd, 'dist.js'),
+                    })),
+                start: async (definition) => {
+                    running.set(definition.name, definition.cwd);
+                },
+                stop: async () => {},
+                delete: async (name) => {
+                    running.delete(name);
+                },
+            },
+            { ...config, releaseBuilderUrl: 'http://builder:15100' },
+            () => new Date('2026-08-01T00:00:00.000Z'),
+            async (input, init) => {
+                if (String(input) === 'http://builder:15100/v1/builds') {
+                    remoteRequests.push(JSON.parse(String(init?.body)) as { commands: Array<{ args: string[] }> });
+                    return new Response(`${JSON.stringify({ result: { ok: true, exitCode: 0, output: '' } })}\n`, {
+                        status: 200,
+                        headers: { 'content-type': 'application/x-ndjson' },
+                    });
+                }
+                return new Response('', { status: 200 });
+            }
+        );
+
+        await controller.runOnce();
+
+        expect(remoteRequests).toHaveLength(1);
+        expect(remoteRequests[0]?.commands.map((command) => command.args.join(' '))).toEqual(
+            expect.arrayContaining([
+                expect.stringContaining('install --frozen-lockfile'),
+                expect.stringContaining('turbo run build'),
+                expect.stringContaining('turbo run build:release'),
+            ])
+        );
+        expect(localCommandGroups).toEqual([['--filter @sammo-ts/infra prisma:migrate:deploy:gateway']]);
+        expect(harness.completions).toEqual(['SUCCEEDED']);
+    });
+
     it('restores the previous gateway processes when the new process set cannot start', async () => {
         const workspace = await createReleaseWorkspace();
         const harness = createRepository();