Method getTokenRemainingHours

src/utils/token-manager.js:116–123

* 获取令牌剩余有效时间（小时） * @param {string} token - JWT令牌 * @returns {number} 剩余小时数，-1表示无效令牌

(token)

     */
    getTokenRemainingHours(token) {
        const decoded = this.validateToken(token)
        if (!decoded) return -1

        const now = Math.floor(Date.now() / 1000)
        const remainingSeconds = decoded.exp - now
        return Math.max(0, Math.round(remainingSeconds / 3600))
    }

    /**
     * 刷新单个账户的令牌
     * @param {Object} account - 账户对象 {email, password, token, expires}