feat: 添加强制更新Lua脚本的配置并优化前端更新按钮

新增配置API的force_update字段返回与保存支持，更新终端Lua脚本逻辑以支持强制更新标记，同时简化前端更新按钮，移除模拟进度条并动态切换按钮状态与显示文本。

server/routes/api.js

@@ -162,7 +162,8 @@ router.get('/config', (req, res) => {
     fares: DataService.getFares(),
     transfers: cfg.transfers || [],
     promotion: cfg.promotion || { name: '', discount: 1 },
-    lua_versions: cfg.lua_versions || {}
+    lua_versions: cfg.lua_versions || {},
+    force_update: cfg.force_update === true
   });
 });
 
@@ -185,6 +186,9 @@ router.put('/config', async (req, res) => {
         ...(incoming.lua_versions || {})
       };
     }
+    if (typeof incoming.force_update === 'boolean') {
+      cfg.force_update = incoming.force_update;
+    }
     await DataService.saveConfig(cfg);
     appendReqLog(req, { category: 'admin', type: 'update_config_generic', detail: incoming });
     io.emit('config:updated', cfg);

server/routes/public.js

@@ -228,7 +228,8 @@ router.get('/config', (req, res) => {
     const cfg = DataService.getConfig();
     res.json({
         promotion: { name: cfg.promotion?.name || '', discount: cfg.promotion?.discount ?? 1 },
-        lua_versions: cfg.lua_versions || {}
+        lua_versions: cfg.lua_versions || {},
+        force_update: cfg.force_update === true
     });
 });