Fix Turtle WoW compatibility: NPC spawning, quests, spells, realm display, and music

- Add TurtlePacketParsers with dedicated movement block parser (Classic format + transport timestamp)
- Fix quest giver status: read uint32 and translate vanilla enum values for Classic/Turtle
- Fix quest accept packet: remove trailing uint32 that vanilla servers reject
- Fix quest details parser: auto-detect vanilla vs WotLK format (informUnit field)
- Fix spellbook and action bar icons: fallback to WotLK DBC field indices when expansion layout fails
- Fix spell cast failure messages: translate vanilla SpellCastResult codes (+1 offset)
- Fix realm list: correct type values (6=RP, 8=RP-PvP) and population thresholds
- Fix music: disable looping for zone music, auto-advance to next random track when finished
- Add music anti-repeat: avoid playing the same track back-to-back
- Make TBC update block parsing resilient (keep parsed blocks on failure instead of aborting)
- Add right-click attack on hostile mobs
- Add name query diagnostic logging

src/audio/music_manager.cpp

@@ -158,7 +158,7 @@ void MusicManager::crossfadeTo(const std::string& mpqPath, float fadeMs) {
         fadeDuration = fadeMs / 1000.0f;
         AudioEngine::instance().stopMusic();
     } else {
-        playMusic(mpqPath);
+        playMusic(mpqPath, false);
     }
 }
 
@@ -173,7 +173,7 @@ void MusicManager::crossfadeToFile(const std::string& filePath, float fadeMs) {
         fadeDuration = fadeMs / 1000.0f;
         AudioEngine::instance().stopMusic();
     } else {
-        playFilePath(filePath);
+        playFilePath(filePath, false);
     }
 }
 
@@ -190,9 +190,9 @@ void MusicManager::update(float deltaTime) {
             // Start new track after brief pause
             crossfading = false;
             if (pendingIsFile) {
-                playFilePath(pendingTrack);
+                playFilePath(pendingTrack, false);
             } else {
-                playMusic(pendingTrack);
+                playMusic(pendingTrack, false);
             }
             pendingTrack.clear();
             pendingIsFile = false;