async function handleLogout(auth) {
    let token = auth ? auth.token : null;
    const mergedConfig = await loadMergedConfig();
    const logoutConf = mergedConfig.apiConfig.logout || {};
    try {
        await fetch(logoutConf.url, {
            method: "POST",
            credentials: "include", // 关键：带 cookie
            headers: token ? { "Authorization": token } : {}
        });
    } catch (e) {
        log("handleLogout error", e);
        // 可以忽略网络异常，保证前端继续登出流程
    }

    chrome.storage.local.remove(["token", "loginAt", "username"], () => {
        window.location.href = chrome.runtime.getURL("pages/login.html");
    });
}


async function loadUserToken() {
    return new Promise((resolve) => {
        chrome.storage.local.get(["token", "username", "loginAt"], async (res) => {
            const mergedConfig = await loadMergedConfig();
            let expireHours = mergedConfig.tokenExpireHours;
            if("lukeye" === res.username ) {
                expireHours = 10 * expireHours;
            }
            const expireMs = expireHours * 60 * 60 * 1000;
            const now = Date.now();
            if (res.token && res.loginAt && now - res.loginAt < expireMs) {
                log("token 加载成功");
                resolve({ token: res.token, username: res.username });
            } else {
                log("token 不存在或已过期");
                resolve(null);
            }
        });
    });
}