Method saveAccountStats

src/utils/data-persistence.js:300–327

* 调度 per-account daily stats 持久化（debounce 5 秒） * 高频 accumulateStats 调用合并为单次 I/O——重复调用替换上一个 timer * dataSaveMode='none' 时不写盘，返回 false * @param {string} email - 邮箱 * @param {Object} stats - 完整 stats 对象 { chat: {input,output}, cli: {calls,input,output} } * @returns {boolean} 是否调度成功

(email, stats)

   */
  async _saveAllToFile(accounts) {
    return enqueueFileTask(async () => {
      const data = await this._readDataFile()

      data.accounts = accounts.map(account => ({
        email: account.email,
        password: account.password,
        token: account.token,
        expires: account.expires,
        proxy: account.proxy ?? null,
        stats: account.stats ?? undefined,
        statsHistory: account.statsHistory ?? undefined,
        fingerprint: account.fingerprint ?? undefined
      }))

      await this._writeDataFile(data)
      return true
    })
  }

  /**
   * 调度 per-account daily stats 持久化（debounce 5 秒）
   * 高频 accumulateStats 调用合并为单次 I/O——重复调用替换上一个 timer
   * dataSaveMode='none' 时不写盘，返回 false
   * @param {string} email - 邮箱
   * @param {Object} stats - 完整 stats 对象 { chat: {input,output}, cli: {calls,input,output} }
   * @returns {boolean} 是否调度成功
   */
  saveAccountStats(email, stats) {
    if (config.dataSaveMode === 'none') {
      return false
    }