Implement cleanup logic to restore CPU cores on shutdown

src/core/manager.rs

@@ -137,3 +137,20 @@ impl CoreManager {
         Ok(())
     }
 }
+
+impl Drop for CoreManager {
+    fn drop(&mut self) {
+        info!("Cleaning up - restoring all cores...");
+
+        let available_cores = Self::get_available_cores();
+        for core_num in available_cores.iter().skip(1) {
+            let online_path = format!("/sys/devices/system/cpu/cpu{}/online", core_num);
+            match fs::write(&online_path, "1") {
+                Ok(_) => debug!("Enabled core {} during cleanup", core_num),
+                Err(e) => error!("Failed to enable core {} during cleanup: {}", core_num, e),
+            }
+        }
+
+        info!("Cleanup complete - all cores should be enabled");
+    }
+}

src/main.rs

@@ -40,7 +40,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     let running = Arc::new(AtomicBool::new(true));
     let r = running.clone();
     ctrlc::set_handler(move || {
-        println!("Ctrl+C received, restoring cores and shutting down...");
+        info!("Shutdown signal received, initiating cleanup...");
         r.store(false, Ordering::SeqCst);
     })?;