【后端接口】行会选举：官员换届的投票与任期接口

-- 行会选举：资格与计票
local player = class(actor)
local function voteFor(player, candidateId)
    local rank = tonumber(getplayvar(player, "GUILD", "ContributeRank") or 99)
    if rank > 15 then
        sendmsg(player, 1, 0, "仅贡献前 15 名可参选。")
        return
    end
    local votes = tonumber(getplayvar(player, "HUMAN", "VotesToday") or 0)
    if votes >= 2 then
        sendmsg(player, 1, 0, "本期投票已用完，每人 2 票。")
        return
    end
    setplayvar(player, "HUMAN", "VotesToday", votes + 1, true)
    local key = "CandidateVotes_" .. candidateId
    setsysvarex(key, tonumber(getsysvar(key) or 0) + 1, true)
    sendmsg(player, 1, 0, "投票成功，结果将在换届日公示。")
end

-- 行选举：换届与否决
local player = class(actor)
local function takeOffice(player, candidateId)
    local votes = tonumber(getsysvar("CandidateVotes_" .. candidateId) or 0)
    local vetoed = getsysvar("LeaderVeto") == candidateId
    if vetoed then
        sendmsg(player, 1, 0, "该候选人被帮主否决，由次高票递补。")
        return
    end
    setplayvar(player, "GUILD", "OfficerId", candidateId, true)
    setplayvar(player, "GUILD", "TermStart", os.date("%Y%m%d"), true)
    sendcentermsg(player, 255, 0, "新任官员已就位，任期两个月。", 0, 8)
end