diff --git a/src/business/auth/login.service.zulip-account.spec.ts b/src/business/auth/login.service.zulip_account.spec.ts
similarity index 99%
rename from src/business/auth/login.service.zulip-account.spec.ts
rename to src/business/auth/login.service.zulip_account.spec.ts
index 0489e58..cc2636b 100644
--- a/src/business/auth/login.service.zulip-account.spec.ts
+++ b/src/business/auth/login.service.zulip_account.spec.ts
@@ -10,9 +10,13 @@
  * - 属性 13: Zulip账号创建一致性
  * - 验证需求: 账号创建成功率和数据一致性
  * 
+ * 最近修改：
+ * - 2026-01-08: 文件重命名 - 修正kebab-case为snake_case命名规范 (修改者: moyin)
+ * 
  * @author angjustinl
- * @version 1.0.0
+ * @version 1.0.1
  * @since 2025-01-05
+ * @lastModified 2026-01-08
  */
 
 import { Test, TestingModule } from '@nestjs/testing';
diff --git a/src/business/shared/dto/app_status.dto.ts b/src/business/shared/app_status.dto.ts
similarity index 93%
rename from src/business/shared/dto/app_status.dto.ts
rename to src/business/shared/app_status.dto.ts
index f19a5d7..d4fc51a 100644
--- a/src/business/shared/dto/app_status.dto.ts
+++ b/src/business/shared/app_status.dto.ts
@@ -11,12 +11,13 @@
  * - 文档生成：提供Swagger API文档支持
  * 
  * 最近修改：
+ * - 2026-01-08: 文件夹扁平化 - 从dto/子文件夹移动到上级目录 (修改者: moyin)
  * - 2026-01-07: 代码规范优化 - 更新注释规范、修正属性命名(storage_mode->storageMode)和作者信息
  * 
  * @author moyin
- * @version 1.0.1
+ * @version 1.0.2
  * @since 2025-12-17
- * @lastModified 2026-01-07
+ * @lastModified 2026-01-08
  */
 
 import { ApiProperty } from '@nestjs/swagger';
diff --git a/src/business/shared/dto/index.ts b/src/business/shared/dto/index.ts
deleted file mode 100644
index ee6eeae..0000000
--- a/src/business/shared/dto/index.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-/**
- * 共享 DTO 统一导出
- * 
- * 功能描述：
- * - 导出所有共享的 DTO 类
- * - 提供统一的导入入口
- * - 简化DTO类的导入路径
- * 
- * 职责分离：
- * - 模块导出：统一管理DTO类的导出
- * - 路径简化：提供简洁的导入接口
- * 
- * 最近修改：
- * - 2026-01-07: 代码规范优化 - 更新注释规范和作者信息
- * 
- * @author moyin
- * @version 1.0.1
- * @since 2025-12-24
- * @lastModified 2026-01-07
- */
-
-// 应用状态相关
-export * from './app_status.dto';
-
-// 错误响应相关
-export * from './error_response.dto';
\ No newline at end of file
diff --git a/src/business/shared/dto/error_response.dto.ts b/src/business/shared/error_response.dto.ts
similarity index 92%
rename from src/business/shared/dto/error_response.dto.ts
rename to src/business/shared/error_response.dto.ts
index aaf285b..1fc5344 100644
--- a/src/business/shared/dto/error_response.dto.ts
+++ b/src/business/shared/error_response.dto.ts
@@ -11,12 +11,13 @@
  * - 文档生成：提供Swagger错误响应文档
  * 
  * 最近修改：
+ * - 2026-01-08: 文件夹扁平化 - 从dto/子文件夹移动到上级目录 (修改者: moyin)
  * - 2026-01-07: 代码规范优化 - 更新注释规范和作者信息
  * 
  * @author moyin
- * @version 1.0.1
+ * @version 1.0.2
  * @since 2025-12-17
- * @lastModified 2026-01-07
+ * @lastModified 2026-01-08
  */
 
 import { ApiProperty } from '@nestjs/swagger';
diff --git a/src/business/shared/index.ts b/src/business/shared/index.ts
index ca297ff..ef66090 100644
--- a/src/business/shared/index.ts
+++ b/src/business/shared/index.ts
@@ -11,13 +11,17 @@
  * - 模块封装：隐藏内部文件结构细节
  * 
  * 最近修改：
+ * - 2026-01-08: 文件夹扁平化 - 更新导入路径，移除dto/子文件夹 (修改者: moyin)
  * - 2026-01-07: 代码规范优化 - 更新注释规范和作者信息
  * 
  * @author moyin
- * @version 1.0.1
+ * @version 1.0.2
  * @since 2025-12-24
- * @lastModified 2026-01-07
+ * @lastModified 2026-01-08
  */
 
-// DTO
-export * from './dto';
\ No newline at end of file
+// 应用状态相关
+export * from './app_status.dto';
+
+// 错误响应相关
+export * from './error_response.dto';
\ No newline at end of file
diff --git a/src/business/user_mgmt/user_status.controller.ts b/src/business/user_mgmt/user_status.controller.ts
index 95d2feb..0b50487 100644
--- a/src/business/user_mgmt/user_status.controller.ts
+++ b/src/business/user_mgmt/user_status.controller.ts
@@ -27,7 +27,7 @@
 
 import { Body, Controller, Get, HttpCode, HttpStatus, Param, Put, Post, UseGuards, ValidationPipe, UsePipes, Logger } from '@nestjs/common';
 import { ApiBearerAuth, ApiBody, ApiOperation, ApiParam, ApiResponse, ApiTags } from '@nestjs/swagger';
-import { AdminGuard } from '../admin/guards/admin.guard';
+import { AdminGuard } from '../admin/admin.guard';
 import { UserManagementService } from './user_management.service';
 import { Throttle, ThrottlePresets } from '../../core/security_core/throttle.decorator';
 import { Timeout, TimeoutPresets } from '../../core/security_core/timeout.decorator';
diff --git a/src/business/zulip/controllers/chat.controller.ts b/src/business/zulip/chat.controller.ts
similarity index 98%
rename from src/business/zulip/controllers/chat.controller.ts
rename to src/business/zulip/chat.controller.ts
index 93b0bea..ea546ce 100644
--- a/src/business/zulip/controllers/chat.controller.ts
+++ b/src/business/zulip/chat.controller.ts
@@ -40,16 +40,16 @@ import {
   ApiBearerAuth,
   ApiQuery,
 } from '@nestjs/swagger';
-import { JwtAuthGuard } from '../../auth/jwt_auth.guard';
-import { ZulipService } from '../zulip.service';
-import { ZulipWebSocketGateway } from '../zulip_websocket.gateway';
+import { JwtAuthGuard } from '../auth/jwt_auth.guard';
+import { ZulipService } from './zulip.service';
+import { ZulipWebSocketGateway } from './zulip_websocket.gateway';
 import {
   SendChatMessageDto,
   ChatMessageResponseDto,
   GetChatHistoryDto,
   ChatHistoryResponseDto,
   SystemStatusResponseDto,
-} from '../chat.dto';
+} from './chat.dto';
 
 @ApiTags('chat')
 @Controller('chat')
diff --git a/src/business/zulip/services/message_filter.service.ts b/src/business/zulip/services/message_filter.service.ts
index f8d2d54..649428f 100644
--- a/src/business/zulip/services/message_filter.service.ts
+++ b/src/business/zulip/services/message_filter.service.ts
@@ -42,7 +42,7 @@
 
 import { Injectable, Logger, Inject } from '@nestjs/common';
 import { IRedisService } from '../../../core/redis/redis.interface';
-import { IZulipConfigService } from '../../../core/zulip_core/interfaces/zulip_core.interfaces';
+import { IZulipConfigService } from '../../../core/zulip_core/zulip_core.interfaces';
 
 /**
  * 内容过滤结果接口
diff --git a/src/business/zulip/services/session_cleanup.service.ts b/src/business/zulip/services/session_cleanup.service.ts
index 98f29f0..24a5b06 100644
--- a/src/business/zulip/services/session_cleanup.service.ts
+++ b/src/business/zulip/services/session_cleanup.service.ts
@@ -23,7 +23,7 @@
 
 import { Injectable, Logger, OnModuleInit, OnModuleDestroy, Inject } from '@nestjs/common';
 import { SessionManagerService } from './session_manager.service';
-import { IZulipClientPoolService } from '../../../core/zulip_core/interfaces/zulip_core.interfaces';
+import { IZulipClientPoolService } from '../../../core/zulip_core/zulip_core.interfaces';
 
 /**
  * 清理任务配置接口
diff --git a/src/business/zulip/services/session_manager.service.ts b/src/business/zulip/services/session_manager.service.ts
index b9ff466..661b86c 100644
--- a/src/business/zulip/services/session_manager.service.ts
+++ b/src/business/zulip/services/session_manager.service.ts
@@ -46,8 +46,8 @@
 
 import { Injectable, Logger, Inject } from '@nestjs/common';
 import { IRedisService } from '../../../core/redis/redis.interface';
-import { IZulipConfigService } from '../../../core/zulip_core/interfaces/zulip_core.interfaces';
-import { Internal, Constants } from '../../../core/zulip_core/interfaces/zulip.interfaces';
+import { IZulipConfigService } from '../../../core/zulip_core/zulip_core.interfaces';
+import { Internal, Constants } from '../../../core/zulip_core/zulip.interfaces';
 
 /**
  * 游戏会话接口 - 重新导出以保持向后兼容
diff --git a/src/business/zulip/services/zulip_event_processor.service.ts b/src/business/zulip/services/zulip_event_processor.service.ts
index b123295..66f7235 100644
--- a/src/business/zulip/services/zulip_event_processor.service.ts
+++ b/src/business/zulip/services/zulip_event_processor.service.ts
@@ -32,7 +32,7 @@
 
 import { Injectable, OnModuleDestroy, Inject, forwardRef, Logger } from '@nestjs/common';
 import { SessionManagerService } from './session_manager.service';
-import { IZulipConfigService, IZulipClientPoolService } from '../../../core/zulip_core/interfaces/zulip_core.interfaces';
+import { IZulipConfigService, IZulipClientPoolService } from '../../../core/zulip_core/zulip_core.interfaces';
 
 /**
  * Zulip消息接口
diff --git a/src/business/zulip/controllers/websocket_docs.controller.ts b/src/business/zulip/websocket_docs.controller.ts
similarity index 100%
rename from src/business/zulip/controllers/websocket_docs.controller.ts
rename to src/business/zulip/websocket_docs.controller.ts
diff --git a/src/business/zulip/zulip.module.ts b/src/business/zulip/zulip.module.ts
index bcc4a97..c146c57 100644
--- a/src/business/zulip/zulip.module.ts
+++ b/src/business/zulip/zulip.module.ts
@@ -49,9 +49,9 @@ import { SessionManagerService } from './services/session_manager.service';
 import { MessageFilterService } from './services/message_filter.service';
 import { ZulipEventProcessorService } from './services/zulip_event_processor.service';
 import { SessionCleanupService } from './services/session_cleanup.service';
-import { ChatController } from './controllers/chat.controller';
-import { WebSocketDocsController } from './controllers/websocket_docs.controller';
-import { ZulipAccountsController } from './controllers/zulip_accounts.controller';
+import { ChatController } from './chat.controller';
+import { WebSocketDocsController } from './websocket_docs.controller';
+import { ZulipAccountsController } from './zulip_accounts.controller';
 import { ZulipCoreModule } from '../../core/zulip_core/zulip_core.module';
 import { ZulipAccountsModule } from '../../core/db/zulip_accounts/zulip_accounts.module';
 import { RedisModule } from '../../core/redis/redis.module';
diff --git a/src/business/zulip/zulip.service.spec.ts b/src/business/zulip/zulip.service.spec.ts
index b5b5bb8..6730da8 100644
--- a/src/business/zulip/zulip.service.spec.ts
+++ b/src/business/zulip/zulip.service.spec.ts
@@ -39,7 +39,7 @@ import {
   IZulipConfigService,
   ZulipClientInstance,
   SendMessageResult,
-} from '../../core/zulip_core/interfaces/zulip_core.interfaces';
+} from '../../core/zulip_core/zulip_core.interfaces';
 import { ApiKeySecurityService } from '../../core/zulip_core/services/api_key_security.service';
 import { LoginCoreService } from '../../core/login_core/login_core.service';
 
diff --git a/src/business/zulip/zulip.service.ts b/src/business/zulip/zulip.service.ts
index b901d73..e1cbd4b 100644
--- a/src/business/zulip/zulip.service.ts
+++ b/src/business/zulip/zulip.service.ts
@@ -43,7 +43,7 @@ import {
   IZulipClientPoolService,
   IZulipConfigService,
   IApiKeySecurityService,
-} from '../../core/zulip_core/interfaces/zulip_core.interfaces';
+} from '../../core/zulip_core/zulip_core.interfaces';
 import { LoginCoreService } from '../../core/login_core/login_core.service';
 
 /**
diff --git a/src/business/zulip/controllers/zulip_accounts.controller.ts b/src/business/zulip/zulip_accounts.controller.ts
similarity index 97%
rename from src/business/zulip/controllers/zulip_accounts.controller.ts
rename to src/business/zulip/zulip_accounts.controller.ts
index fae7114..ac9829f 100644
--- a/src/business/zulip/controllers/zulip_accounts.controller.ts
+++ b/src/business/zulip/zulip_accounts.controller.ts
@@ -33,9 +33,9 @@ import {
   ApiParam,
   ApiQuery,
 } from '@nestjs/swagger';
-import { JwtAuthGuard } from '../../auth/jwt_auth.guard';
-import { ZulipAccountsService } from '../../../core/db/zulip_accounts/zulip_accounts.service';
-import { ZulipAccountsMemoryService } from '../../../core/db/zulip_accounts/zulip_accounts_memory.service';
+import { JwtAuthGuard } from '../auth/jwt_auth.guard';
+import { ZulipAccountsService } from '../../core/db/zulip_accounts/zulip_accounts.service';
+import { ZulipAccountsMemoryService } from '../../core/db/zulip_accounts/zulip_accounts_memory.service';
 import {
   CreateZulipAccountDto,
   UpdateZulipAccountDto,
@@ -47,7 +47,7 @@ import {
   BatchUpdateResponseDto,
   VerifyAccountDto,
   VerifyAccountResponseDto,
-} from '../../../core/db/zulip_accounts/zulip_accounts.dto';
+} from '../../core/db/zulip_accounts/zulip_accounts.dto';
 
 @ApiTags('zulip-accounts')
 @Controller('zulip-accounts')