feat: canonical type aliases over legacy RakNet names (#14)

Source/include/mafianet/aliases.h

@@ -0,0 +1,45 @@
+/*
+ *  Copyright (c) 2019, SLikeSoft UG (haftungsbeschraenkt)
+ *
+ *  This source code is  licensed under the MIT-style license found in the license.txt
+ *  file in the root directory of this source tree.
+ */
+
+/// \file aliases.h
+/// \brief Canonical MafiaNet type aliases over the legacy RakNet names.
+///
+/// The library lives in the `MafiaNet` namespace, but many public types still
+/// carry their historical RakNet names. This header introduces clean, canonical
+/// aliases so callers can write idiomatic MafiaNet code:
+/// \code
+/// MafiaNet::PeerInterface* peer = MafiaNet::PeerInterface::GetInstance();
+/// \endcode
+///
+/// These are `using` aliases (not subclasses): each canonical name denotes the
+/// exact same type as its legacy counterpart, so the two interoperate freely.
+///
+/// \note Aliases only — the legacy declarations are intentionally left untouched
+/// and un-deprecated. A `[[deprecated]]` pass is a separate, later task.
+
+#pragma once
+
+#include "mafianet/peerinterface.h" // RakPeerInterface
+#include "mafianet/types.h"         // RakNetGUID, UNASSIGNED_RAKNET_GUID
+#include "mafianet/statistics.h"    // RakNetStatistics
+
+namespace MafiaNet {
+
+/// Canonical name for the main entry point, RakPeerInterface.
+using PeerInterface = RakPeerInterface;
+
+/// Canonical name for a peer's globally unique identifier, RakNetGUID.
+using Guid = RakNetGUID;
+
+/// Canonical name for the connection statistics struct, RakNetStatistics.
+using Statistics = RakNetStatistics;
+
+/// Canonical name for the unassigned-GUID sentinel, UNASSIGNED_RAKNET_GUID.
+/// Bound by reference so it remains the same object as the legacy sentinel.
+inline const Guid& UnassignedGuid = UNASSIGNED_RAKNET_GUID;
+
+} // namespace MafiaNet

Source/include/mafianet/mafianet.h

@@ -30,3 +30,4 @@
 #include "mafianet/BitStream.h"          // binary serialization
 #include "mafianet/GetTime.h"            // MafiaNet::GetTime / TimeMS
 #include "mafianet/guid_util.h"          // MafiaNet::to_string / connected_address
+#include "mafianet/aliases.h"            // canonical aliases: PeerInterface, Guid, Statistics