Add standardized documentation headers

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/UserManagementService.cpp

@@ -1,11 +1,30 @@
+/*
+File: UserManagementService.cpp
+Description: Implementation file containing the method definitions of the
+			 UserManagementService class, including user retrieval and removal logic.
+Author: Trenser
+Date:19-May-2026
+*/
 #include "UserManagementService.h"
 #include "User.h"
 
+/*
+Function: getUsers
+Description: Retrieves all users stored in the DataStore.
+Parameter: None
+Return type: util::Map<std::string, User*>
+*/
 util::Map<std::string, User*> UserManagementService::getUsers()
 {
 	return m_dataStore.getUsers();
 }
 
+/*
+Function: getUser
+Description: Retrieves a specific user by ID from the DataStore.
+Parameter: const std::string& userID - ID of the user
+Return type: User*
+*/
 User* UserManagementService::getUser(const std::string& userID)
 {
 	int index = m_dataStore.getUsers().find(userID);
@@ -16,6 +35,12 @@ User* UserManagementService::getUser(const std::string& userID)
 	return nullptr;
 }
 
+/*
+Function: removeUser
+Description: Marks a user as inactive in the DataStore instead of deleting them.
+Parameter: const std::string& userID - ID of the user to remove
+Return type: void
+*/
 void UserManagementService::removeUser(const std::string& userID)
 {
 	int index = m_dataStore.getUsers().find(userID);