feat: 实现ID生成器并重构模型ID生成逻辑

refactor: 统一ID生成方式，使用新的idGenerator模块
refactor: 重构模型ID生成逻辑，允许空ID并在创建前自动生成
fix(roomSchema): 使机房ID字段变为可选并更新前端表单验证
style: 格式化代码并优化导入语句
test: 添加操作日志集成测试文件
docs: 添加错误处理模块文档

backend/routes/devices.js

@@ -728,12 +728,12 @@ async function generateDeviceId() {
       },
     },
     attributes: [
-      [sequelize.fn('MAX', sequelize.literal("CAST(SUBSTR(deviceId, 4) AS INTEGER)")), 'maxNum'],
+      [sequelize.fn('MAX', sequelize.literal('CAST(SUBSTR(deviceId, 4) AS INTEGER)')), 'maxNum'],
     ],
     raw: true,
   });
 
-  const maxNumber = (result && result.maxNum) ? parseInt(result.maxNum, 10) : 0;
+  const maxNumber = result && result.maxNum ? parseInt(result.maxNum, 10) : 0;
   const newNumber = maxNumber + 1;
   return `DEV${String(newNumber).padStart(3, '0')}`;
 }