【后端接口】行会合并仓储：两库物资的并账接口

-- 行会合并：逐项并账
local player = class(actor)
local POOL_CAP = 2000
local function mergePool(player, itemName, subAmount)
    local main = tonumber(getsysvar("Pool_" .. itemName) or 0)
    local add = subAmount
    if main + subAmount > POOL_CAP then
        add = POOL_CAP - main
        local refund = math.floor((subAmount - add) * 0.8)
        setsysvarex("MergeRefund_" .. itemName, refund, true)
        sendmsg(player, 1, 0, itemName .. " 超出上限，超出部分八折折成贡献返还。")
    end
    setsysvarex("Pool_" .. itemName, main + add, true)
end

-- 冲突折算：保留与折算
local player = class(actor)
local function mergeConflictAsset(player, assetName, subTs)
    local mainTs = tonumber(getsysvar("Asset_" .. assetName) or 0)
    if subTs < mainTs then
        setsysvarex("Asset_" .. assetName, subTs, true)
        sendmsg(player, 1, 0, assetName .. " 以副行会资产为准保留。")
    else
        setsysvarex("GuildFund", tonumber(getsysvar("GuildFund") or 0) + 50000, true)
        sendmsg(player, 1, 0, assetName .. " 重复，折算五万行会基金。")
    end
    setsysvarex("MergePublic_" .. assetName, os.date("%Y%m%d%H%M"), true)
end