Update server to support latest version

src/main/java/emu/nebula/server/handlers/HandlerNpcAffinityBookGetReq.java

@@ -0,0 +1,21 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.NpcAffinityBookGet.NPCAffinityBookGetResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.npc_affinity_book_get_req)
+public class HandlerNpcAffinityBookGetReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Build response
+        var rsp = NPCAffinityBookGetResp.newInstance();
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.npc_affinity_book_get_succeed_ack, rsp);
+    }
+
+}