【安全加密】异常合成：成功率偏离的合成监控

-- 异常合成：成功率统计
local player = class(actor)
local DESIGN_RATE = 60
local MIN_SAMPLE = 30
local function checkSynthRate(player)
    local cnt = tonumber(getplayvar(player, "HUMAN", "SynthCnt") or 0)
    if cnt < MIN_SAMPLE then return end
    local wins = tonumber(getplayvar(player, "HUMAN", "SynthWins") or 0)
    local actual = wins / cnt * 100
    if actual > DESIGN_RATE + 20 then
        setplayvar(player, "HUMAN", "SynthWatch", 1, true)
        sendmsg(player, 1, 0, "合成数据异常，已转入人工核查。")
    end
end

-- 观察处置：限流与复核
local player = class(actor)
local function synthGate(player, lastTs)
    if getplayvar(player, "HUMAN", "SynthWatch") == 1 then
        if os.time() - lastTs < 2 then
            sendmsg(player, 1, 0, "合成过于频繁，请稍后再试。")
            return false
        end
    end
    return true
end