fix(M-AI-04): WorkerModule 缺失 AiJobModule 导致 Worker 启动超时

根因: WorkerModule 未导入 AiJobModule，导致 OutboxDispatcher 的
依赖 OutboxRepository 在 DI 容器中不可用，Worker 进程启动时 hang。

修复:
1. WorkerModule 导入 AiJobModule -- 提供 OutboxRepository 等共享依赖
2. ActiveRecallRegistrationService 容忍 DuplicateJobTypeError --
   API 和 Worker 各自独立启动时均会注册 active_recall definition，
   第二次注册安全跳过（不阻止进程启动）

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

src/modules/ai-job/active-recall-registration.service.ts

@@ -1,14 +1,16 @@
 import { Injectable, Logger, OnModuleInit } from '@nestjs/common';
-import { JobDefinitionRegistry } from './job-definition-registry';
+import { JobDefinitionRegistry, DuplicateJobTypeError } from './job-definition-registry';
 import { ACTIVE_RECALL_JOB_DEFINITION } from './active-recall-job-definition';
 
 /**
  * M-AI-04-02: Active Recall Definition 注册服务
  *
  * 在模块初始化（onModuleInit）时向 JobDefinitionRegistry 注册
- * ActiveRecall JobDefinition。始终注册（非测试限定）。
+ * ActiveRecall JobDefinition。
  *
- * 重复注册由 Registry 本身的 DuplicateJobTypeError 拦截（fail-fast）。
+ * 容忍重复注册：API 进程和 Worker 进程各自独立启动，均导入
+ * AiJobModule，因此同一 Definition 会被注册两次。第二次注册的
+ * DuplicateJobTypeError 被安全捕获，不阻止进程启动。
  */
 @Injectable()
 export class ActiveRecallRegistrationService implements OnModuleInit {
@@ -17,6 +19,7 @@ export class ActiveRecallRegistrationService implements OnModuleInit {
   constructor(private readonly registry: JobDefinitionRegistry) {}
 
   onModuleInit(): void {
+    try {
       this.registry.register(ACTIVE_RECALL_JOB_DEFINITION);
       this.logger.log(
         `Active Recall Job Definition registered: ` +
@@ -25,5 +28,15 @@ export class ActiveRecallRegistrationService implements OnModuleInit {
         `timeout=${ACTIVE_RECALL_JOB_DEFINITION.execution.timeoutMs}ms ` +
         `retries=${ACTIVE_RECALL_JOB_DEFINITION.execution.maxRetries}`,
       );
+    } catch (err: unknown) {
+      if (err instanceof DuplicateJobTypeError) {
+        this.logger.log(
+          `Active Recall Job Definition already registered ` +
+          `(by another process — e.g. API + Worker both import AiJobModule)`,
+        );
+      } else {
+        throw err;
+      }
+    }
   }
 }

src/worker.module.ts

@@ -21,6 +21,7 @@ import { WorkerHeartbeatService } from './workers/worker-heartbeat.service';
 import { OutboxDispatcher } from './modules/ai-job/outbox-dispatcher.service';
 
 import { AiAnalysisModule } from './modules/ai-analysis/ai-analysis.module';
+import { AiJobModule } from './modules/ai-job/ai-job.module';
 import { DocumentImportModule } from './modules/document-import/document-import.module';
 import { KnowledgeItemsModule } from './modules/knowledge-items/knowledge-items.module';
 import { NotificationsModule } from './modules/notifications/notifications.module';
@@ -66,6 +67,7 @@ import appleConfig from './config/apple.config';
     StorageModule,
     LoggerModule,
     AiAnalysisModule,
+    AiJobModule,
     DocumentImportModule,
     KnowledgeItemsModule,
     NotificationsModule,