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

src/data/storage/user/user_storage.ts

@@ -1,13 +1,13 @@
 "use client";
 
 /**
- * UserStorage 完整实现（KV / localStorage）
+ * UserStorage 完整实现（基于 unstorage 抽象）
  *
  * 对齐 Dart 端 `UserStorage`（lib/data/services/storage/user_storage.dart）：
  *   - 三个独立字段：User 对象 / userId / avatarUrl
  *   - `clearUserData()` 批量清空
  *
- * 设计沿用 AuthStorage 模式：组合 `LocalStorage`（非继承）+ 单例 + Zod 校验。
+ * 设计：内部使用 SpAsyncUtil 静态类 + Zod 校验；保持对外 API 完全兼容。
  *
  * 边界：
  *   - `getUser` 走 `UserSchema` 解析：缺字段时 Zod `.default()` 自动兜底
@@ -17,18 +17,13 @@
 
 import { UserSchema, type UserData } from "@/data/schemas/user/user";
 import { type Result as ResultT } from "@/utils/result";
+import { SpAsyncUtil } from "@/utils/storage";
 import { StorageKeys } from "../storage_keys";
 import type { IUserStorage } from "./iuser_storage";
-import { LocalStorage } from "@/utils/local-storage";
 
 export class UserStorage implements IUserStorage {
-  private readonly ls: LocalStorage;
   private static _instance: UserStorage | null = null;
 
-  constructor(localStorage?: LocalStorage) {
-    this.ls = localStorage ?? LocalStorage.getInstance();
-  }
-
   static getInstance(): UserStorage {
     if (!UserStorage._instance) UserStorage._instance = new UserStorage();
     return UserStorage._instance;
@@ -42,43 +37,43 @@ export class UserStorage implements IUserStorage {
   // ---- user object ----
 
   getUser(): Promise<ResultT<UserData | null>> {
-    return this.ls.getJson(StorageKeys.user, UserSchema);
+    return SpAsyncUtil.getJson(StorageKeys.user, UserSchema);
   }
 
   setUser(user: UserData): Promise<ResultT<void>> {
-    return this.ls.setJson(StorageKeys.user, user, UserSchema);
+    return SpAsyncUtil.setJson(StorageKeys.user, user, UserSchema);
   }
 
   clearUser(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.user);
+    return SpAsyncUtil.remove(StorageKeys.user);
   }
 
   // ---- userId ----
 
   getUserId(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.userId);
+    return SpAsyncUtil.getString(StorageKeys.userId);
   }
 
   setUserId(id: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.userId, id);
+    return SpAsyncUtil.setString(StorageKeys.userId, id);
   }
 
   clearUserId(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.userId);
+    return SpAsyncUtil.remove(StorageKeys.userId);
   }
 
   // ---- avatarUrl ----
 
   getAvatarUrl(): Promise<ResultT<string | null>> {
-    return this.ls.getString(StorageKeys.userAvatar);
+    return SpAsyncUtil.getString(StorageKeys.userAvatar);
   }
 
   setAvatarUrl(url: string): Promise<ResultT<void>> {
-    return this.ls.setString(StorageKeys.userAvatar, url);
+    return SpAsyncUtil.setString(StorageKeys.userAvatar, url);
   }
 
   clearAvatarUrl(): Promise<ResultT<void>> {
-    return this.ls.remove(StorageKeys.userAvatar);
+    return SpAsyncUtil.remove(StorageKeys.userAvatar);
   }
 
   // ---- bulk clear ----