Method transferSyncToLocal

src/pkg/config/config.ts:131–145

(
    key: SystemConfigKey,
    defaultValue: WithAsyncValue<Exclude<T, undefined>>
  )

  }

  private async transferSyncToLocal<T>(
    key: SystemConfigKey,
    defaultValue: WithAsyncValue<Exclude<T, undefined>>
  ): Promise<T> {
    const syncVal = await this.syncStorage.get(key);
    if (syncVal === undefined) {
      this.cache.set(key, undefined);
      return this.resolveDefault<T>(defaultValue);
    }
    // 迁移到 local storage 并从 sync 中删除
    await this.syncStorage.remove(key); // 先删除
    await this.localStorage.set(key, syncVal); // 删除成功后储回本地
    this.cache.set(key, syncVal);
    return syncVal as T;
  }

  private _get<T extends string | number | boolean | object>(
    key: SystemConfigKey,