feat: 将批量升级改为逐个主机顺序升级并添加超时控制

- 修改升级流程，从同时触发所有主机改为逐个主机顺序触发和轮询
- 添加 session_id 字段到 upgrade_log 表以区分不同主机的升级会话
- 引入 upgradePollTimeoutSeconds 配置项控制单个主机轮询超时时间
- 添加数据库迁移脚本以更新表结构和主键约束
- 实现运行组状态跟踪，防止同一组并发执行
- 改进错误处理和日志记录，为每个主机独立记录升级结果

scripts/init_db.sql

@@ -5,6 +5,7 @@
 
 CREATE TABLE IF NOT EXISTS upgrade_log (
     uuid UUID NOT NULL,
+    session_id UUID,
     start_time TIMESTAMP NOT NULL,
     roomtype_id INTEGER NOT NULL,
     host_str TEXT NOT NULL,

scripts/update_db_schema.js

@@ -0,0 +1,34 @@
+const db = require('../src/db');
+
+const updateSchema = async () => {
+    try {
+        console.log('Updating database schema...');
+        await db.query(`
+            DO $$ 
+            BEGIN 
+                IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'upgrade_log' AND column_name = 'session_id') THEN 
+                    ALTER TABLE upgrade_log ADD COLUMN session_id UUID; 
+                END IF; 
+            END $$;
+        `);
+        console.log('Added session_id column.');
+
+        try {
+            await db.query(`ALTER TABLE upgrade_log DROP CONSTRAINT IF EXISTS upgrade_log_pkey`);
+            console.log('Dropped old primary key constraint.');
+        } catch (e) {
+            console.log('Primary key might not exist or different name:', e.message);
+        }
+
+        await db.query(`ALTER TABLE upgrade_log ADD PRIMARY KEY (uuid)`);
+        console.log('Set uuid as Primary Key.');
+
+        console.log('Schema update completed successfully.');
+        process.exit(0);
+    } catch (error) {
+        console.error('Schema update failed:', error);
+        process.exit(1);
+    }
+};
+
+updateSchema();