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。

web/index.js

@@ -1477,13 +1477,11 @@ createApp({
         };
 
         const isPushingUpdate = ref(false);
-        const updateProgress = ref(0);
 
         const pushLuaUpdate = async () => {
             if (!confirm('确定要向所有机器推送更新指令吗？这将会使空闲机器静默更新并重启。')) return;
             
             isPushingUpdate.value = true;
-            updateProgress.value = 0;
             
             // 自动提升版本号 & 开启 force_update
             if (!config.lua_versions.ticketmachine) config.lua_versions.ticketmachine = 'v1.0.0';
@@ -1494,20 +1492,12 @@ createApp({
             
             try {
                 await requestJson('/api/config', { method: 'PUT', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(config) }, { expectOk: true });
-                
-                // 模拟进度条，持续约 5 秒 (设备5秒轮询一次)
-                for (let i = 0; i <= 100; i += 2) {
-                    updateProgress.value = i;
-                    await new Promise(resolve => setTimeout(resolve, 100)); // 100ms * 50 = 5000ms
-                }
-                
                 toast('推送指令发送完毕，终端将陆续更新', 'success');
             } catch (err) {
                 console.error(err);
                 toast('推送更新失败', 'error');
             } finally {
                 isPushingUpdate.value = false;
-                updateProgress.value = 100;
             }
         };
 
@@ -1762,7 +1752,7 @@ createApp({
             
             saveCurrentFare, deleteCurrentFare, closeFareModal,
 
-            saveConfig, isPushingUpdate, updateProgress, pushLuaUpdate, exportData, exportFareMap,
+            saveConfig, isPushingUpdate, pushLuaUpdate, exportData, exportFareMap,
             formatTime, formatLogDetail, getStationName, getStationInfo, loadFareMap, fetchData, refreshData: fetchData,
             fareMapScale, fareMapLoading, fareMapError, zoomFareMapIn, zoomFareMapOut, zoomFareMapReset,
             isTransferStation, getTransferTitleSuffix, getTransferLineBadges