feat(web,backend,lua,installer): 新增Lua脚本版本管理功能及相关优化

- 升级售票机、检票机内置Lua脚本版本至v1.5.8
- 新增后端配置的lua_versions字段，统一管理售票机、检票机的Lua脚本版本
- 前端新增版本管理配置页面，支持版本号配置和一键补丁升级
- 为售票机、检票机添加远程版本检测功能，屏幕显示版本匹配状态标记
- 简化installer配置交互流程，优化站点代码输入方式
- 重构后端配置规范化处理逻辑，统一配置初始化与存储流程
- 优化售票机外设检测、支付检测逻辑，修复部分已知问题

installer_bi.lua

@@ -34,13 +34,6 @@ local function prompt(label)
   return trim(read() or "")
 end
 
-local function promptOptionalUrl(label)
-  local raw = prompt(label)
-  raw = trim(raw)
-  if #raw == 0 then return nil end
-  return raw
-end
-
 local function httpGet(url)
   if not http then return false, "HTTP API disabled" end
   local okReq, err = pcall(function()
@@ -99,10 +92,9 @@ term.setCursorPos(1, 1)
 print("Bidirectional Ticket Gate Installer")
 print("")
 
-local stationsRaw = prompt("Station codes (comma or slash): ")
-local stationCodes = splitCsv(stationsRaw)
-if #stationCodes == 0 then
-  print("No station codes provided.")
+local stationCode = trim(prompt("Station code: "))
+if #stationCode == 0 then
+  print("No station code provided.")
   return
 end
 
@@ -112,30 +104,19 @@ local frontRaw = prompt("Front mode (entry/exit): ")
 local backRaw = prompt("Back mode (entry/exit): ")
 local frontMode = normalizeMode(frontRaw)
 local backMode = normalizeMode(backRaw)
-local frontStationCode = trim(prompt("Front station code (default first code): "))
-local backStationCode = trim(prompt("Back station code (default first code): "))
-if #frontStationCode == 0 then frontStationCode = stationCodes[1] end
-if #backStationCode == 0 then backStationCode = stationCodes[1] end
-
-print("")
-print("Optional server config for ticket / IC card checks.")
-local ticketServerUrl = promptOptionalUrl("Ticket check URL (blank=auto): ")
-local cardServerUrl = promptOptionalUrl("IC card check URL (blank=same server): ")
 
 local cfg = {
-  station_codes = stationCodes,
-  station_code = stationCodes[1],
+  station_codes = { stationCode },
+  station_code = stationCode,
   side_modes = {
     front = frontMode,
     back = backMode,
   },
   side_station_codes = {
-    front = frontStationCode,
-    back = backStationCode,
+    front = stationCode,
+    back = stationCode,
   }
 }
-if ticketServerUrl then cfg.server_url = ticketServerUrl end
-if cardServerUrl then cfg.card_server_url = cardServerUrl end
 local okCfg, cfgJson = pcall(textutils.serializeJSON, cfg)
 if not okCfg then
   print("Config serialize failed.")