帮会银匠：银饰翻新与断口重铸

local function polishSilver(actor, silverId)
    setplayvar(actor, "polishUntil",
        os.time() + 30 * 60)
    setplayvar(actor, "polishItem", silverId)
    sendmsg(actor, 1, "抛光中，30 分钟后取件")
end

local function recastSilver(actor, silverId)
    local silver = getplayvar(actor, "silverMat") or 0
    if silver < 2 then
        sendmsg(actor, 1, "银料不足 2 份")
        return
    end
    setplayvar(actor, "silverMat", silver - 2)
    giveitem(actor, 9301, 1)
    sendmsg(actor, 1, "重铸完成，断口如新")
end