feat(gate): 优化显示屏显示逻辑并更新版本

为 install_ticketmachine.lua 添加标准文件头注释
升级 gate.lua 版本至 v1.5.28
新增 splitDisplayLines 函数用于拆分多行显示文本
重构 draw 与 readyLine2 函数以支持多行状态文本的居中渲染
新增 displayStationCode 函数优化车站代码格式，移除 ST 前缀与多余空格

gate.lua

@@ -1,7 +1,7 @@
 local DEFAULT_SERVER_BASE = "https://ticket.fse-media.group"
 local DEFAULT_SERVER_PATH = "/api/tickets/check"
 local GATE_OPEN_SECONDS = 2
-local VERSION = "v1.5.27"
+local VERSION = "v1.5.28"
 local VERSION_CHECK_INTERVAL = 5
 
 local serverURL = nil
@@ -227,6 +227,17 @@ local function centerText(y, text, color)
   termDev.write(text)
 end
 
+local function splitDisplayLines(text)
+  local out = {}
+  text = tostring(text or "")
+  if #text == 0 then return out end
+  for line in text:gmatch("([^\n]*)\n?") do
+    if line == "" and #out > 0 and text:sub(-1) ~= "\n" then break end
+    if #line > 0 then table.insert(out, line) end
+  end
+  return out
+end
+
 local function drawServerStatusIndicator(w)
   if w < 2 then return end
   local col = colors.yellow
@@ -278,11 +289,17 @@ local function draw(statusLine1, statusLine2, statusColor)
   centerText(2, "GATE", colors.cyan)
   drawVersionIndicator(w)
   drawServerStatusIndicator(w)
-  if statusLine1 and #statusLine1 > 0 then
-    centerText(math.max(2, math.floor(h / 2)), statusLine1, statusColor or colors.white)
-  end
-  if statusLine2 and #statusLine2 > 0 then
-    centerText(math.min(h, math.max(3, math.floor(h / 2) + 1)), statusLine2, statusColor or colors.white)
+  local lines = {}
+  for _, line in ipairs(splitDisplayLines(statusLine1)) do table.insert(lines, line) end
+  for _, line in ipairs(splitDisplayLines(statusLine2)) do table.insert(lines, line) end
+  if #lines > 0 then
+    local maxBodyY = math.max(3, h - 1)
+    local startY = math.max(3, math.floor((maxBodyY - #lines) / 2) + 1)
+    for idx, line in ipairs(lines) do
+      local y = startY + idx - 1
+      if y > maxBodyY then break end
+      centerText(y, line, statusColor or colors.white)
+    end
   end
   termDev.setCursorPos(1, h)
   termDev.setTextColor(colors.gray)
@@ -852,6 +869,15 @@ local function stationCodeForSide(side)
   return defaultStationCode()
 end
 
+local function displayStationCode(code)
+  local s = trim(code)
+  if #s == 0 then return s end
+  if s:sub(1, 2):upper() == "ST" then
+    s = s:sub(3):gsub("^[%s%-_]+", "")
+  end
+  return s
+end
+
 local function isInspectionPeripheral(p)
   return type(p) == "table" and (
     type(p.getLastScanned) == "function"
@@ -947,15 +973,38 @@ local function readyLine1()
 end
 
 local function readyLine2()
-  if not modeBySide then
-    return "ST " .. stationCodeForSide(nil)
+  local lines = {}
+  local seen = {}
+  local function addLine(line)
+    line = trim(line)
+    if #line == 0 then return end
+    local key = line:lower()
+    if seen[key] then return end
+    seen[key] = true
+    table.insert(lines, line)
   end
-  local frontCode = stationCodeForSide("front")
-  local backCode = stationCodeForSide("back")
-  if frontCode == backCode then
-    return "ST " .. frontCode
+
+  if type(sideStationCodeBySide) == "table" and next(sideStationCodeBySide) ~= nil then
+    local orderedSides = { "front", "back", "left", "right", "top", "bottom" }
+    for _, side in ipairs(orderedSides) do
+      local code = displayStationCode(sideStationCodeBySide[side] or "")
+      if #code > 0 then
+        addLine(string.upper(side:sub(1, 1)) .. " " .. code)
+      end
+    end
   end
-  return "F " .. frontCode .. "  B " .. backCode
+
+  if #lines == 0 then
+    for _, code in ipairs(stationCodesPayload) do
+      addLine(displayStationCode(code))
+    end
+  end
+
+  if #lines == 0 then
+    addLine(displayStationCode(stationCodeForSide(nil)))
+  end
+
+  return table.concat(lines, "\n")
 end
 
 local function drawReadyScreen()