Add NoteService to handle note operations

NoteService should be the only class with access to NoteDao;
nowhere else should NoteDao be accessed directly.

Channel dependencies are static in PacketProcessor, for now.
Ideally they would be injected in the constructor,
but since the constructor is private and I don't want to open
up that can of worms, I'll leave it like this.
At the very least, now we have a way of injecting services into
the handlers. This will make further restructuring way easier.

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

@@ -35,6 +35,9 @@ import constants.game.GameConstants;
 import constants.inventory.ItemConstants;
 import constants.net.OpcodeConstants;
 import constants.net.ServerConstants;
+import database.note.NoteDao;
+import net.ChannelDependencies;
+import net.PacketProcessor;
 import net.netty.LoginServer;
 import net.packet.Packet;
 import net.server.channel.Channel;
@@ -55,6 +58,7 @@ import server.TimerManager;
 import server.expeditions.ExpeditionBossLog;
 import server.life.PlayerNPCFactory;
 import server.quest.Quest;
+import service.NoteService;
 import tools.DatabaseConnection;
 import tools.Pair;
 
@@ -838,6 +842,8 @@ public class Server {
             throw new IllegalStateException("Failed to initiate a connection to the database");
         }
 
+        registerChannelDependencies();
+
         final ExecutorService initExecutor = Executors.newFixedThreadPool(10);
         // Run slow operations asynchronously to make startup faster
         final List<Future<?>> futures = new ArrayList<>();
@@ -914,6 +920,16 @@ public class Server {
         }
     }
 
+    private void registerChannelDependencies() {
+        NoteDao noteDao = new NoteDao();
+
+        ChannelDependencies channelDependencies = new ChannelDependencies(
+                new NoteService(noteDao)
+        );
+
+        PacketProcessor.registerGameHandlerDependencies(channelDependencies);
+    }
+
     private LoginServer initLoginServer(int port) {
         LoginServer loginServer = new LoginServer(port);
         loginServer.start();