Implement interprocess event handling for notifications and account disable

Changes:
- Implements #2061
- Introduce EventManager for user-specific Windows event publishing/listening
- Add real-time notification and account-disabled event propagation
- Register authentication events through Controller and AuthenticationManagementService
- Trigger notification events from Inventory, Payment, and Service Management modules
- Trigger account-disabled events when users are deactivated
- Extract common menu event listener logic into Menu base class
- Add notification popup handling for Admin, Customer, and Technician menus
- Refactor shared memory components into core/sharedmemory
- Update project structure and include paths for events and shared memory modules

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/PaymentManagementService.cpp

@@ -22,6 +22,7 @@ Date: 20-May-2026
 #include "User.h"
 #include "Utility.h"
 #include "DataStoreLockGuard.h"
+#include "EventManager.h"
 
 util::Map<std::string, User*> PaymentManagementService::m_observers{};
 
@@ -109,6 +110,7 @@ void PaymentManagementService::sendNotification(User* user, const std::string& t
 	auto& trackedNotificationsMap = m_dataStore.getNotifications();
 	trackedNotificationsMap.insert(notification->getId(), util::createNewRecord(notification));
 	m_dataStore.saveNotifications();
+	EventManager::sendNotificationAvailableEvent(user->getId());
 }
 
 /*