refactor(utils): add barrel exports

src/data/storage/app/app_storage.ts

@@ -16,8 +16,7 @@
  *   - `recordXxx(today)` 写入 todayString，后续 `canXxx` 在同一天返回 `false`。
  */
 
-import { Result, type Result as ResultT } from "@/utils/result";
-import { SpAsyncUtil } from "@/utils/storage";
+import { Result, type Result as ResultT, SpAsyncUtil } from "@/utils";
 import { StorageKeys } from "../storage_keys";
 
 export class AppStorage {

src/data/storage/auth/auth_storage.ts

@@ -14,8 +14,7 @@
  *   - `clearAuthData` 顺序清理：loginToken → guestToken → refreshToken，任一失败立即返回
  */
 
-import { Result, type Result as ResultT } from "@/utils/result";
-import { SpAsyncUtil } from "@/utils/storage";
+import { Result, type Result as ResultT, SpAsyncUtil } from "@/utils";
 import { StorageKeys } from "../storage_keys";
 import type { IAuthStorage } from "./iauth_storage";
 

src/data/storage/auth/iauth_storage.ts

@@ -9,7 +9,7 @@
  *   - 所有方法返回 `Promise<Result<T>>`，与 Dart `Future<Result<T>>` 对齐
  */
 
-import type { Result } from "@/utils/result";
+import type { Result } from "@/utils";
 
 export interface IAuthStorage {
   getLoginToken(): Promise<Result<string | null>>;

src/data/storage/chat/__tests__/chat_storage.test.ts

@@ -4,8 +4,7 @@ import memoryDriver from "unstorage/drivers/memory";
 
 import { GuestChatQuota } from "@/data/dto/chat/guest_chat_quota";
 import { StorageKeys } from "@/data/storage/storage_keys";
-import { todayString } from "@/utils/date";
-import { SpAsyncUtil } from "@/utils/storage";
+import { todayString, SpAsyncUtil } from "@/utils";
 
 import { ChatStorage } from "../chat_storage";
 

src/data/storage/chat/chat_storage.ts

@@ -7,9 +7,7 @@ import {
 import { GuestChatQuota as GuestChatQuotaDto } from "@/data/dto/chat/guest_chat_quota";
 import { z } from "zod";
 
-import { type Result as ResultT, Result } from "@/utils/result";
-import { todayString } from "@/utils/date";
-import { SpAsyncUtil } from "@/utils/storage";
+import { type Result as ResultT, Result, todayString, SpAsyncUtil } from "@/utils";
 import { StorageKeys } from "../storage_keys";
 import type { IChatStorage } from "./ichat_storage";
 

src/data/storage/chat/ichat_storage.ts

@@ -11,7 +11,7 @@
  * 跨天判断逻辑（`needsReset`）保留在 `GuestChatQuota` 类上。
  */
 
-import type { Result } from "@/utils/result";
+import type { Result } from "@/utils";
 import type { GuestChatQuotaData } from "@/data/schemas/chat/guest_chat_quota";
 
 export interface IChatStorage {

src/data/storage/chat/local_chat_storage.ts

@@ -15,7 +15,7 @@
  * 数据量大时考虑升级 schema 加索引。
  */
 
-import { Result, type Result as ResultT } from "@/utils/result";
+import { Result, type Result as ResultT } from "@/utils";
 import { LocalChatDB } from "./local_chat_db";
 import { LocalMessage } from "./local_message";
 

src/data/storage/user/iuser_storage.ts

@@ -11,7 +11,7 @@
  * 具体序列化由实现层通过 Zod schema 校验后转换为 `User` 类实例。
  */
 
-import type { Result } from "@/utils/result";
+import type { Result } from "@/utils";
 import type { UserData } from "@/data/schemas/user/user";
 
 export interface IUserStorage {

src/data/storage/user/user_storage.ts

@@ -16,8 +16,7 @@
  */
 
 import { UserSchema, type UserData } from "@/data/schemas/user/user";
-import { type Result as ResultT } from "@/utils/result";
-import { SpAsyncUtil } from "@/utils/storage";
+import { type Result as ResultT, SpAsyncUtil } from "@/utils";
 import { StorageKeys } from "../storage_keys";
 import type { IUserStorage } from "./iuser_storage";