feat: unified monitoring service

include/spore/Spore.h

@@ -11,6 +11,7 @@
 #include "core/TaskManager.h"
 #include "Service.h"
 #include "util/Logging.h"
+#include "util/CpuUsage.h"
 
 class Spore {
 public:
@@ -33,6 +34,11 @@ public:
     TaskManager& getTaskManager() { return taskManager; }
     ClusterManager& getCluster() { return cluster; }
     ApiServer& getApiServer() { return apiServer; }
+    
+    // CPU usage monitoring
+    CpuUsage& getCpuUsage() { return cpuUsage; }
+    float getCurrentCpuUsage() const { return cpuUsage.getCpuUsage(); }
+    float getAverageCpuUsage() const { return cpuUsage.getAverageCpuUsage(); }
 
 
 private:
@@ -45,6 +51,7 @@ private:
     TaskManager taskManager;
     ClusterManager cluster;
     ApiServer apiServer;
+    CpuUsage cpuUsage;
 
     std::vector<std::shared_ptr<Service>> services;
     bool initialized;