refactor: 更新导入路径 - 从index.ts导入

server/src/modules/book-generator/book-queue.processor.ts

@@ -4,7 +4,7 @@
  */
 
 import { queueService, QueueType } from '../../services/queue.service';
-import { langGraphGenerator } from './langgraph-generator';
+import { langGraphGenerator } from './index';
 import { bookStore } from './book-generator.store';
 import { prisma } from '../../models';
 

server/src/modules/book-generator/langgraph-controller.ts

@@ -5,7 +5,7 @@
 
 import Router from '@koa/router';
 import { Context } from 'koa';
-import { langGraphGenerator, getScaleConfig } from './langgraph-generator';
+import { langGraphGenerator, getScaleConfig } from './index';
 import { queueService, QueueType } from '../../services/queue.service';
 import { bookStore } from './book-generator.store';
 import { estimateBookWords, estimateAudioMinutesFromWords, checkBookGenerationQuota } from '../subscription/subscription.service';