【策划架构】Lua冷热归档：沙巴克仓库60天前旧账的转存

local ledger = {}
local function scan()
    for id, rec in pairs(ledger) do   -- 20000条全在热层
        checkRecent(id, rec)          -- 旧账陪跑，扫描8秒
    end
end

local hot, cold = {}, {}
local function archive(now)
    for id, rec in pairs(hot) do
        if now - rec.t > 5184000 then   -- 60天未动转冷
            cold[id] = rec
            hot[id] = nil
        end
    end
end
local function fetch(id)
    return hot[id] or cold[id]          -- 冷表按键回捞
end
sendmsg(actor, 1, "裁决之杖旧账已归档")