Function closeDialog

KeepChatGPT.user.js:592–595

()

        // 统一关闭逻辑，保证点击遮罩和取消按钮行为一致。
        const closeDialog = function () {
            ndivalert.remove();
            document.removeEventListener("keydown", onEsc);
        };
        const onEsc = function (event) {
            if (event.key === "Escape") {
                closeDialog();