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

server/routes/api.js

@@ -148,14 +148,16 @@ const resolveCurrentStationCode = (body, resolveStation) => {
 
 // Config
 router.get('/config', (req, res) => {
+  const cfg = DataService.getConfig();
   res.json({
-    api_base: DataService.getConfig().api_base,
-    current_station: DataService.getConfig().current_station,
+    api_base: cfg.api_base,
+    current_station: cfg.current_station,
     stations: DataService.getStations(),
     lines: DataService.getLines(),
     fares: DataService.getFares(),
-    transfers: DataService.getConfig().transfers || [],
-    promotion: DataService.getConfig().promotion || { name: '', discount: 1 }
+    transfers: cfg.transfers || [],
+    promotion: cfg.promotion || { name: '', discount: 1 },
+    lua_versions: cfg.lua_versions || {}
   });
 });
 
@@ -219,6 +221,12 @@ router.put('/config', async (req, res) => {
       if (!(d >= 0 && d <= 1)) return res.status(400).json({ ok: false, error: 'promotion.discount must be between 0 and 1' });
       cfg.promotion = { name: String(p.name || ''), discount: d };
     }
+    if (incoming.lua_versions && typeof incoming.lua_versions === 'object') {
+      cfg.lua_versions = {
+        ...(cfg.lua_versions || {}),
+        ...(incoming.lua_versions || {})
+      };
+    }
     await DataService.saveConfig(cfg);
     appendReqLog(req, { category: 'admin', type: 'update_config_generic', detail: incoming });
     io.emit('config:updated', cfg);