队长移交：队长离线的自动继任

local function onLogout(actor)
    if actor == LEADER then
        DISBAND()                   -- 队长掉线直接解散
    end
end

local function onLogout(actor)
    if actor ~= LEADER then return end
    for _, m in ipairs(MEMBERS) do
        if isOnline(m) then
            LEADER = m              -- 按入队顺序继任
            sendmsg(getplayerbyname(m), 1, "您已接任队长")
            return
        end
    end
    DISBAND()                       -- 全员离线才解散
end