fix: 注册ISchedulerService到依赖注入容器

- 在Startup.cs中添加services.AddScoped<ISchedulerService, SchedulerService>()
- 修复SystemController无法注入ISchedulerService的问题
- 解决500错误：Unable to resolve service for type ISchedulerService

测试结果:
- 解决方案编译成功
- API应用可以启动
- 修复了依赖注入问题

Haoliang.Api/Startup.cs

@@ -145,6 +145,7 @@ namespace Haoliang.Api
             services.AddScoped<IRealTimeService, RealTimeService>();
             services.AddScoped<IProductionStatisticsService, ProductionStatisticsService>();
             services.AddScoped<IRulesService, RulesService>();
+            services.AddScoped<ISchedulerService, SchedulerService>();
             
             // 注册配置服务
             services.AddScoped<ISystemService, SystemService>();