Add client disconnection logic to TransitionService

Problem: disconnecting requires access to CharacterSaver,
which is not available in Client.
Having it in a service like this solves that problem.

Next step is to migrate all calls to Client#disconnect and Client#forceDisconnect
to their TransitionService counterparts.

src/main/java/net/server/Server.java

@@ -76,8 +76,8 @@ import server.expeditions.ExpeditionBossLog;
 import server.life.PlayerNPCFactory;
 import server.quest.Quest;
 import server.shop.ShopFactory;
-import service.ChannelService;
 import service.NoteService;
+import service.TransitionService;
 import tools.DatabaseConnection;
 import tools.Pair;
 
@@ -982,17 +982,17 @@ public class Server {
         MonsterCardDao monsterCardDao = new MonsterCardDao(connection);
         CharacterLoader characterLoader = new CharacterLoader(monsterCardDao);
         CharacterSaver characterSaver = new CharacterSaver(monsterCardDao);
-        ChannelService channelService = new ChannelService(characterSaver);
+        TransitionService transitionService = new TransitionService(characterSaver);
         NoteService noteService = new NoteService(new NoteDao(connection));
         MakerProcessor makerProcessor = new MakerProcessor(new MakerInfoProvider(new MakerDao(connection)));
         FredrickProcessor fredrickProcessor = new FredrickProcessor(noteService);
         DropProvider dropProvider = new DropProvider(new DropDao(connection));
         ShopFactory shopFactory = new ShopFactory(new ShopDao(connection));
         CommandContext commandContext = new CommandContext(null, dropProvider, shopFactory,
-                characterSaver, channelService);
+                characterSaver, transitionService);
         CommandsExecutor commandsExecutor = new CommandsExecutor(commandContext);
         ChannelDependencies channelDependencies = new ChannelDependencies(characterLoader, characterSaver, noteService,
-                fredrickProcessor, makerProcessor, dropProvider, commandsExecutor, shopFactory, channelService);
+                fredrickProcessor, makerProcessor, dropProvider, commandsExecutor, shopFactory, transitionService);
 
         PacketProcessor.registerGameHandlerDependencies(channelDependencies);
 

src/main/java/net/server/channel/handlers/ChangeChannelHandler.java

@@ -27,16 +27,16 @@ import net.AbstractPacketHandler;
 import net.netty.GameViolationException;
 import net.packet.InPacket;
 import net.server.Server;
-import service.ChannelService;
+import service.TransitionService;
 
 /**
  * @author Matze
  */
 public final class ChangeChannelHandler extends AbstractPacketHandler {
-    private final ChannelService channelService;
+    private final TransitionService transitionService;
 
-    public ChangeChannelHandler(ChannelService channelService) {
-        this.channelService = channelService;
+    public ChangeChannelHandler(TransitionService transitionService) {
+        this.transitionService = transitionService;
     }
 
     @Override
@@ -51,6 +51,6 @@ public final class ChangeChannelHandler extends AbstractPacketHandler {
             return;
         }
 
-        channelService.changeChannel(c, channel);
+        transitionService.changeChannel(c, channel);
     }
 }