fix: use TestingModule as application context, fix $executeRaw

- TestingModule.compile() returns an application context directly
- Use $executeRaw tagged template instead of $executeRawUnsafe
- Add jest.setTimeout(30000) for integration tests

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

test/m-ai-01-09.e2e-spec.ts

@@ -11,7 +11,7 @@
  */
 
 import { Test, TestingModule } from '@nestjs/testing';
-import { INestApplication } from '@nestjs/common';
+import { INestApplicationContext } from '@nestjs/common';
 import { WorkerModule } from '../src/worker.module';
 import { AppModule } from '../src/app.module';
 import { PrismaService } from '../src/infrastructure/database/prisma.service';
@@ -46,9 +46,11 @@ import { WorkerHeartbeatService } from '../src/workers/worker-heartbeat.service'
 // 注意: runtime-internal.service.ts 是 Heavy Runtime (Rust) 链路, 不参与 BullMQ 链路.
 // Gate 报告若引用 runtime-internal.service.ts 则属于证据错误.
 
+jest.setTimeout(30_000);
+
 describe('M-AI-01-09 Integration', () => {
-  let apiApp: INestApplication;
-  let workerApp: INestApplication;
+  let apiApp: INestApplicationContext;
+  let workerApp: INestApplicationContext;
   let prisma: PrismaService;
   let redis: RedisService;
   let queueService: QueueService;
@@ -65,16 +67,15 @@ describe('M-AI-01-09 Integration', () => {
     const apiModule: TestingModule = await Test.createTestingModule({
       imports: [AppModule],
     }).compile();
-    apiApp = apiModule.createNestApplication();
-    await apiApp.init();
+    // TestingModule IS an application context — use directly
+    apiApp = apiModule as any;
     apiApp.enableShutdownHooks();
 
     // Worker context (Consumer, all Processors)
     const workerModule: TestingModule = await Test.createTestingModule({
       imports: [WorkerModule],
     }).compile();
-    workerApp = workerModule.createNestApplication();
-    await workerApp.init();
+    workerApp = workerModule as any;
     workerApp.enableShutdownHooks();
 
     prisma = workerApp.get(PrismaService);
@@ -145,7 +146,7 @@ describe('M-AI-01-09 Integration', () => {
       'LearningSession', 'KnowledgeItem', 'KnowledgeBase',
     ];
     for (const table of tables) {
-      await prisma.$executeRawUnsafe(`DELETE FROM \`${table}\` WHERE userId = ?`, testUserId).catch(() => {});
+      await prisma.$executeRaw`DELETE FROM \`${table}\` WHERE userId = ${testUserId}`.catch(() => {});
     }
     await prisma.user.delete({ where: { id: testUserId } }).catch(() => {});
   }