ge: add user agent to trade message

http-service/src/main/java/net/runelite/http/service/ge/GrandExchangeController.java

@@ -101,6 +101,7 @@ public class GrandExchangeController
 		trade.setMachineId(request.getHeader(RuneLiteAPI.RUNELITE_MACHINEID));
 		trade.setUserId(userId);
 		trade.setIp(request.getHeader("X-Forwarded-For"));
+		trade.setUa(request.getHeader("User-Agent"));
 		trade.setWorldType(grandExchangeTrade.getWorldType());
 
 		String json = GSON.toJson(trade);

http-service/src/main/java/net/runelite/http/service/ge/Trade.java

@@ -44,5 +44,6 @@ class Trade
 	private String machineId;
 	private Integer userId;
 	private String ip;
+	private String ua;
 	private WorldType worldType;
 }