【数据存储】数据归档：历史角色的定期归档策略

-- 数据归档：批量转存
local player = class(actor)
local function archiveBatch(player, startId, endId)
    local archived = 0
    for id = startId, endId do
        local lastLogin = tonumber(getplayvar(player, "HUMAN", "LastLoginTs") or 0)
        if os.time() - lastLogin > 7776000 then
            local pack = getplayvar(player, "HUMAN", "CharData") or ""
            setsysvarex("ColdStore_" .. id, pack, true)
            setplayvar(player, "HUMAN", "Archived", 1, true)
            archived = archived + 1
        end
        if archived >= 200 then break end
    end
    sendmsg(player, 1, 0, "本批归档 " .. archived .. " 个角色。")
end

-- 解档恢复：还原数据
local player = class(actor)
local function restoreFromArchive(player, charId)
    local pack = getsysvarex and getsysvar("ColdStore_" .. charId) or ""
    if pack == "" then return end
    setplayvar(player, "HUMAN", "CharData", pack, true)
    setsysvarex("ColdStore_" .. charId, "", true)
    setplayvar(player, "HUMAN", "Archived", 0, true)
    sendmsg(player, 1, 0, "角色数据已从归档中恢复。")
end