Fix Bard music restarting/duplicating when opening dialogs

Two issues were causing the bug:
1. GuiDialogInteract.close() called stopAllSounds() unconditionally,
   which stopped Bard music even when the dialog had no sound or
   when a different Bard was playing nearby.

2. MusicController.stopMusic() didn't set playDelay, allowing Bards
   to immediately restart their music after dialog close.

Changes:
- MusicController.stopMusic() now sets playDelay=20 and clears entity
  reference to prevent immediate music restart
- Added MusicController.stopSound(key) to stop specific sounds
- Dialog GUIs now track their dialog sound and only stop that on close,
  preserving Bard music and other sounds

src/main/java/noppes/npcs/client/controllers/MusicController.java

@@ -66,6 +66,8 @@ public class MusicController {
             this.playingSound.stopSound();
             this.sounds.remove(this.playingSound.sound);
             this.playingSound = null;
+            this.entity = null;
+            this.playDelay = 20; // Prevent immediate restart when music is stopped
         } else if (soundHandler != null) {
             try {
                 soundHandler.stopSounds();
@@ -193,4 +195,26 @@ public class MusicController {
         }
         this.sounds.clear();
     }
+
+    /**
+     * Stops a specific sound by its resource key.
+     * This is used to stop dialog sounds without affecting Bard music.
+     * @param soundKey The sound resource key to stop
+     */
+    public void stopSound(String soundKey) {
+        if (soundKey == null || soundKey.isEmpty()) {
+            return;
+        }
+        ScriptClientSound sound = this.sounds.remove(soundKey);
+        if (sound != null) {
+            SoundHandler soundHandler = Minecraft.getMinecraft().getSoundHandler();
+            if (soundHandler != null) {
+                try {
+                    soundHandler.stopSound(sound);
+                } catch (Exception ignored) {
+                }
+            }
+            sound.stopSound();
+        }
+    }
 }

src/main/java/noppes/npcs/client/gui/player/GuiDialogInteract.java

@@ -75,6 +75,12 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose {
      */
     private boolean sentClosePacket = false;
 
+    /**
+     * Tracks the dialog sound that was played, so we can stop only this sound
+     * on close without affecting Bard music or other sounds.
+     */
+    private String dialogSound = null;
+
     public GuiDialogInteract(EntityNPCInterface npc, Dialog dialog) {
         super(npc);
         this.dialog = dialog;
@@ -671,8 +677,13 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose {
         this.options = new ArrayList<Integer>();
 
         if (dialog.sound != null && !dialog.sound.isEmpty()) {
+            // Stop any previous dialog sound before playing new one
+            if (this.dialogSound != null) {
+                MusicController.Instance.stopSound(this.dialogSound);
+            }
             MusicController.Instance.stopMusic();
             MusicController.Instance.playSound(dialog.sound, (float) npc.posX, (float) npc.posY, (float) npc.posZ);
+            this.dialogSound = dialog.sound;
         }
 
         if (!dialog.showPreviousBlocks) {
@@ -707,7 +718,11 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose {
         super.close();
         if (parent != null)
             NoppesUtil.openGUI(player, parent);
-        MusicController.Instance.stopAllSounds();
+        // Only stop the dialog sound, not Bard music or other sounds
+        if (this.dialogSound != null) {
+            MusicController.Instance.stopSound(this.dialogSound);
+            this.dialogSound = null;
+        }
     }
 
     @Override

src/main/java/noppes/npcs/client/gui/player/modern/GuiModernDialogInteract.java

@@ -63,6 +63,12 @@ public class GuiModernDialogInteract extends GuiNPCInterface implements IGuiClos
      */
     private boolean sentClosePacket = false;
 
+    /**
+     * Tracks the dialog sound that was played, so we can stop only this sound
+     * on close without affecting Bard music or other sounds.
+     */
+    private String dialogSound = null;
+
     public GuiModernDialogInteract(EntityNPCInterface npc, Dialog dialog) {
         super(npc);
         this.dialog = dialog;
@@ -380,8 +386,13 @@ public class GuiModernDialogInteract extends GuiNPCInterface implements IGuiClos
         this.options = new ArrayList<Integer>();
 
         if (dialog.sound != null && !dialog.sound.isEmpty()) {
+            // Stop any previous dialog sound before playing new one
+            if (this.dialogSound != null) {
+                MusicController.Instance.stopSound(this.dialogSound);
+            }
             MusicController.Instance.stopMusic();
             MusicController.Instance.playSound(dialog.sound, (float) npc.posX, (float) npc.posY, (float) npc.posZ);
+            this.dialogSound = dialog.sound;
         }
 
         if (!dialog.showPreviousBlocks) {
@@ -440,6 +451,11 @@ public class GuiModernDialogInteract extends GuiNPCInterface implements IGuiClos
             }
             closed();
         }
+        // Only stop the dialog sound, not Bard music or other sounds
+        if (this.dialogSound != null) {
+            MusicController.Instance.stopSound(this.dialogSound);
+            this.dialogSound = null;
+        }
         super.onGuiClosed();
     }
 }