【数据存储】数据字典管理：枚举与常量的统一管理

-- 数据字典：分组与冻结
local DICT = {}
local function freeze(t)
    return setmetatable({}, {
        __index = t,
        __newindex = function(_, k)
            error("字典禁止写入: " .. tostring(k), 2)
        end,
    })
end
DICT.QUALITY = freeze({NORMAL = 1, RARE = 2, EPIC = 3, LEGEND = 4})
DICT.JOB = freeze({WARRIOR = 1, MAGE = 2, TAOIST = 3})
DICT = freeze(DICT)

-- 一致性校验：字典与配置比对
local player = class(actor)
local function verifyDict(player, cfgQuality)
    local mismatches = {}
    for key, dictVal in pairs(DICT.QUALITY) do
        if cfgQuality[key] and cfgQuality[key] ~= dictVal then
            mismatches[#mismatches + 1] = key .. " 字典=" .. dictVal .. " 配置=" .. cfgQuality[key]
        end
    end
    if #mismatches > 0 then
        sendmsg(player, 1, 0, "字典与配置不一致：" .. table.concat(mismatches, "；"))
    else
        sendmsg(player, 1, 0, "字典校验通过。")
    end
end