feat: 新增客户端问题主动上报与控制台问题汇总功能

1. 客户端 (ticketmachine.lua): 修改 showAlert 支持详细错误并主动上报，使用 pcall 包装主循环捕获 Fatal Error 并上报。
2. 服务端 (data.js, api.js): 增加 issues 数据表，提供 /report_issue 和 /issues 接口。
3. 控制台 (index.html, index.js): 添加“问题汇总”菜单及界面状态管理。

server/services/data.js

@@ -64,7 +64,8 @@ const cache = {
   icCardIndex: {},
   icCardEvents: [],
   statsTicket: [],
-  statsGate: []
+  statsGate: [],
+  issues: []
 };
 
 const DataService = {
@@ -88,6 +89,7 @@ const DataService = {
         await conn.query(`CREATE TABLE IF NOT EXISTS ticket_events (id INT AUTO_INCREMENT PRIMARY KEY, data JSON)`);
         await conn.query(`CREATE TABLE IF NOT EXISTS stats_ticket (id INT AUTO_INCREMENT PRIMARY KEY, data JSON)`);
         await conn.query(`CREATE TABLE IF NOT EXISTS stats_gate (id INT AUTO_INCREMENT PRIMARY KEY, data JSON)`);
+        await conn.query(`CREATE TABLE IF NOT EXISTS issues (id INT AUTO_INCREMENT PRIMARY KEY, data JSON)`);
 
         // Load Cache
         const [configs] = await conn.query('SELECT v FROM kv_store WHERE k = ?', ['config']);
@@ -126,6 +128,9 @@ const DataService = {
         const [statsG] = await conn.query('SELECT data FROM stats_gate');
         cache.statsGate = statsG.map(r => r.data);
 
+        const [issues] = await conn.query('SELECT data FROM issues');
+        cache.issues = issues.map(r => r.data);
+
         console.log('DataService initialized with MySQL');
       } finally {
         conn.release();
@@ -511,6 +516,15 @@ const DataService = {
   },
   getStatsGate: () => cache.statsGate,
 
+  // Issues
+  appendIssue: async (item) => {
+    cache.issues.push(item);
+    try {
+        await pool.query('INSERT INTO issues (data) VALUES (?)', [JSON.stringify(item)]);
+    } catch(e) { console.error('appendIssue error', e); }
+  },
+  getIssues: () => cache.issues,
+
   // Export
   buildExportPayload: () => ({
     config: DataService.getConfig(),