Implement infinite arena

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

@@ -0,0 +1,22 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.InfinityTowerInfo.InfinityTowerInfoResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.infinity_tower_info_req)
+public class HandlerInfinityTowerInfoReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Build response
+        var rsp = InfinityTowerInfoResp.newInstance()
+                .setBountyLevel(0);
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.infinity_tower_info_succeed_ack, rsp);
+    }
+
+}