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/services/data.js

@@ -21,14 +21,39 @@ const pool = mysql.createPool({
   queueLimit: 0
 });
 
+const DEFAULT_LUA_VERSIONS = {
+  ticketmachine: 'v1.5.8',
+  gate: 'v1.5.8'
+};
+
+function normalizeLuaVersions(input) {
+  const src = (input && typeof input === 'object') ? input : {};
+  return {
+    ticketmachine: String(src.ticketmachine || DEFAULT_LUA_VERSIONS.ticketmachine),
+    gate: String(src.gate || DEFAULT_LUA_VERSIONS.gate)
+  };
+}
+
+function normalizeConfig(input) {
+  const src = (input && typeof input === 'object') ? input : {};
+  return {
+    ...src,
+    api_base: String(src.api_base || 'http://127.0.0.1:23333/api'),
+    current_station: (src.current_station && typeof src.current_station === 'object')
+      ? src.current_station
+      : { name: 'Station1', code: '01-01' },
+    transfers: Array.isArray(src.transfers) ? src.transfers : [],
+    promotion: {
+      name: String(src?.promotion?.name || ''),
+      discount: Number(src?.promotion?.discount ?? 1)
+    },
+    lua_versions: normalizeLuaVersions(src.lua_versions)
+  };
+}
+
 // In-memory cache for synchronous read access
 const cache = {
-  config: {
-    api_base: 'http://127.0.0.1:23333/api',
-    current_station: { name: 'Station1', code: '01-01' },
-    transfers: [],
-    promotion: { name: '', discount: 1 }
-  },
+  config: normalizeConfig({}),
   stations: [],
   lines: [],
   fares: [],
@@ -66,7 +91,7 @@ const DataService = {
 
         // Load Cache
         const [configs] = await conn.query('SELECT v FROM kv_store WHERE k = ?', ['config']);
-        if (configs.length > 0) cache.config = configs[0].v;
+        if (configs.length > 0) cache.config = normalizeConfig(configs[0].v);
         else await conn.query('INSERT INTO kv_store (k, v) VALUES (?, ?)', ['config', JSON.stringify(cache.config)]);
 
         const [stations] = await conn.query('SELECT data FROM stations');
@@ -114,8 +139,8 @@ const DataService = {
   // Config
   getConfig: () => cache.config,
   saveConfig: async (cfg) => {
-    cache.config = cfg;
-    await pool.query('INSERT INTO kv_store (k, v) VALUES (?, ?) ON DUPLICATE KEY UPDATE v = ?', ['config', JSON.stringify(cfg), JSON.stringify(cfg)]);
+    cache.config = normalizeConfig(cfg);
+    await pool.query('INSERT INTO kv_store (k, v) VALUES (?, ?) ON DUPLICATE KEY UPDATE v = ?', ['config', JSON.stringify(cache.config), JSON.stringify(cache.config)]);
   },
 
   // Stations