Fix Folia compatibility and allow self-mute

- Use FoliaUtil.runAsync instead of scheduler.runTaskAsynchronously
- Remove self-mute restriction (can now mute yourself)

src/main/java/com/loki/lochat/commands/MuteCommand.java

@@ -122,12 +122,6 @@ public class MuteCommand implements CommandExecutor, TabCompleter {
         } else {
             targetUUID = target.getUniqueId();
             finalTargetName = target.getName();
-
-            // Проверка на себя
-            if (sender instanceof Player && ((Player) sender).getUniqueId().equals(targetUUID)) {
-                sender.sendMessage("§cВы не можете замутить себя!");
-                return true;
-            }
         }
 
         // Проверяем, не замучен ли уже

src/main/java/com/loki/lochat/managers/MuteManager.java

@@ -4,6 +4,7 @@ import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.reflect.TypeToken;
 import com.loki.lochat.LoChat;
+import com.loki.lochat.gradient.util.FoliaUtil;
 
 import java.io.*;
 import java.lang.reflect.Type;
@@ -234,11 +235,11 @@ public class MuteManager {
     }
 
     private void saveHistoryAsync() {
-        plugin.getServer().getScheduler().runTaskAsynchronously(plugin, this::saveHistory);
+        FoliaUtil.runAsync(plugin, this::saveHistory);
     }
 
     private void saveAsync() {
-        plugin.getServer().getScheduler().runTaskAsynchronously(plugin, () -> {
+        FoliaUtil.runAsync(plugin, () -> {
             save();
             saveHistory();
         });