refactor(repositories): use barrel imports

src/data/repositories/interfaces/ichat_repository.ts

@@ -12,9 +12,11 @@
  */
 
 import type { Result } from "@/utils/result";
-import type { ChatHistoryResponse } from "@/data/dto/chat/chat_history_response";
-import type { ChatMessage } from "@/data/dto/chat/chat_message";
-import type { ChatSendResponse } from "@/data/dto/chat/chat_send_response";
+import type {
+  ChatHistoryResponse,
+  ChatMessage,
+  ChatSendResponse,
+} from "@/data/dto/chat";
 
 export interface IChatRepository {
   /** 发送一条消息。 */