feat(ticketmachine, gate): 新增单程票购票功能并优化自动更新逻辑

- 新增完整的单程票购票流程，包含线路票价数据构建、选择页面与订单适配逻辑
- 将版本检查间隔从60秒调整为5秒，新增版本不匹配时自动运行对应更新脚本并重启的逻辑
- 修正列车类型标签格式，将'single'统一为'Single'
- 优化主页按钮布局，新增单程票购票入口
- 完善终端显示与订单成本计算逻辑，适配单程票场景
- 调整gate.lua的终端标题文字显示位置

gate.lua

@@ -2,7 +2,7 @@ local DEFAULT_SERVER_BASE = "http://ticket.fse-media.group"
 local DEFAULT_SERVER_PATH = "/api/tickets/check"
 local GATE_OPEN_SECONDS = 2
 local VERSION = "v1.5.8"
-local VERSION_CHECK_INTERVAL = 60
+local VERSION_CHECK_INTERVAL = 5
 
 local CONFIG_PATH = "gate_config.json"
 
@@ -158,7 +158,7 @@ end
 local function draw(statusLine1, statusLine2, statusColor)
   clear()
   local w, h = termDev.getSize()
-  centerText(1, "GATE", colors.cyan)
+  centerText(2, "GATE", colors.cyan)
   drawVersionIndicator(w)
   drawServerStatusIndicator(w)
   if statusLine1 and #statusLine1 > 0 then
@@ -1352,6 +1352,21 @@ while true do
     pcall(function()
       refreshRemoteLuaVersion(guessBaseFromStatusURL(serverURL))
     end)
+    if versionMismatch == true then
+      pcall(function()
+        clear()
+        local w, h = termDev.getSize()
+        centerText(math.floor(h / 2), "Auto Updating...", colors.yellow)
+      end)
+      pcall(function()
+        if shell and type(shell.run) == "function" then
+          shell.run("update_gate.lua")
+        else
+          os.run(getfenv and getfenv() or _ENV, "update_gate.lua")
+        end
+      end)
+      os.reboot()
+    end
     drawReadyScreen()
     versionTimer = os.startTimer(VERSION_CHECK_INTERVAL)
   end