客服入口：求助信息的提交面板

-- 错误：求助入口埋三层深，提交没有快照
function openHelp()
    showPanel(deepInSettings())
end

local function submitTicket(kind, desc)
    if desc == nil or desc == "" then
        showTip("请描述问题")
        return
    end
    if #desc > 500 then
        desc = desc:sub(1, 500)
    end
    local ticket = newId()
    saveTicket(ticket, {
        kind = kind, desc = desc,
        at = os.time(), ver = CLIENT_VER,
        lastErr = lastErrorText(),
    })
    showTip("工单 " .. ticket .. " 已提交")
end