chore(deps): add unstorage and migrate ChatStorage to use SpAsyncUtil

src/data/storage/auth/auth_storage.ts

@@ -1,32 +1,29 @@
 "use client";
 
 /**
- * AuthStorage 完整实现（示范 1：KV / localStorage）
+ * AuthStorage 完整实现（基于 unstorage 抽象）
+ *
+ * 原始 Dart: lib/data/services/storage/auth_storage.dart
  *
  * SECURITY: 当前与 Dart 端行为一致，refresh_token 以明文存于 localStorage。
  * 后续轮次将升级到 HttpOnly Cookie 方案，参见 `clearAuthData` 处的 TODO 标记。
  *
  * 设计说明：
- *   - 组合而非继承 `LocalStorage`（避免多重继承层级）
+ *   - 内部使用 `SpAsyncUtil` 静态类（@/utils/storage）
+ *   - 浏览器 → `localStorage` driver；SSR → memory driver（unstorage 自动）
  *   - 单例挂在 class 静态字段，规避 HMR 复用污染
- *   - 构造函数接受可选 `LocalStorage` 注入，便于测试时使用 jsdom 的 storage
  *   - `hasXxx` = `token != null && token.length > 0`，对齐 Dart 端 `isNotEmpty` 语义
  *   - `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 { StorageKeys } from "../storage_keys";
 import type { IAuthStorage } from "./iauth_storage";
-import { LocalStorage } from "@/utils/local-storage";
 
 export class AuthStorage implements IAuthStorage {
-  private readonly ls: LocalStorage;
   private static _instance: AuthStorage | null = null;
 
-  constructor(localStorage?: LocalStorage) {
-    this.ls = localStorage ?? LocalStorage.getInstance();
-  }
-
   static getInstance(): AuthStorage {
     if (!AuthStorage._instance) AuthStorage._instance = new AuthStorage();
     return AuthStorage._instance;
@@ -40,10 +37,10 @@ export class AuthStorage implements IAuthStorage {
   // ---- login token ----
 
   getLoginToken(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.loginToken);
+    return SpAsyncUtil.getString(StorageKeys.loginToken);
   }
   setLoginToken(token: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.loginToken, token);
+    return SpAsyncUtil.setString(StorageKeys.loginToken, token);
   }
   async hasLoginToken(): Promise<ResultT<boolean>> {
     const r = await this.getLoginToken();
@@ -51,16 +48,16 @@ export class AuthStorage implements IAuthStorage {
     return Result.ok(r.data !== null && r.data.length > 0);
   }
   clearLoginToken(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.loginToken);
+    return SpAsyncUtil.remove(StorageKeys.loginToken);
   }
 
   // ---- guest token ----
 
   getGuestToken(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.guestToken);
+    return SpAsyncUtil.getString(StorageKeys.guestToken);
   }
   setGuestToken(token: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.guestToken, token);
+    return SpAsyncUtil.setString(StorageKeys.guestToken, token);
   }
   async hasGuestToken(): Promise<ResultT<boolean>> {
     const r = await this.getGuestToken();
@@ -68,16 +65,16 @@ export class AuthStorage implements IAuthStorage {
     return Result.ok(r.data !== null && r.data.length > 0);
   }
   clearGuestToken(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.guestToken);
+    return SpAsyncUtil.remove(StorageKeys.guestToken);
   }
 
   // ---- device id ----
 
   getDeviceId(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.deviceId);
+    return SpAsyncUtil.getString(StorageKeys.deviceId);
   }
   setDeviceId(deviceId: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.deviceId, deviceId);
+    return SpAsyncUtil.setString(StorageKeys.deviceId, deviceId);
   }
 
   // ---- refresh token ----
@@ -85,22 +82,22 @@ export class AuthStorage implements IAuthStorage {
   // SECURITY: 明文存储，仅供本轮与 Dart 行为对齐
 
   getRefreshToken(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.refreshToken);
+    return SpAsyncUtil.getString(StorageKeys.refreshToken);
   }
   setRefreshToken(token: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.refreshToken, token);
+    return SpAsyncUtil.setString(StorageKeys.refreshToken, token);
   }
   clearRefreshToken(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.refreshToken);
+    return SpAsyncUtil.remove(StorageKeys.refreshToken);
   }
 
   // ---- facebook id ----
 
   getFacebookId(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.facebookId);
+    return SpAsyncUtil.getString(StorageKeys.facebookId);
   }
   setFacebookId(id: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.facebookId, id);
+    return SpAsyncUtil.setString(StorageKeys.facebookId, id);
   }
 
   // ---- bulk clear ----