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/utils/importJobManager.js

@@ -127,9 +127,7 @@ class ImportJobManager extends EventEmitter {
       error: job.error,
       startTime: job.startTime,
       endTime: job.endTime,
-      elapsedTime: job.startTime
-        ? Date.now() - new Date(job.startTime).getTime()
-        : null,
+      elapsedTime: job.startTime ? Date.now() - new Date(job.startTime).getTime() : null,
     };
 
     return progress;
@@ -164,11 +162,14 @@ class ImportJobManager extends EventEmitter {
 
 const importJobManager = new ImportJobManager();
 
-setInterval(() => {
-  importJobManager.cleanupOldJobs();
-}, 60 * 60 * 1000);
+setInterval(
+  () => {
+    importJobManager.cleanupOldJobs();
+  },
+  60 * 60 * 1000
+);
 
 module.exports = {
   importJobManager,
   ImportJobManager,
-};
+};