Fix NPC voices and add tavern music support

NPC voice fixes:
- Changed sound paths from "Greeting" to "Hello" emote (more reliable)
- Added warning log when no voice samples load
- Voice files should now play when clicking NPCs

Tavern music:
- Detect tavern WMOs by model ID (inn buildings)
- Play tavern-specific music when inside taverns
- Crossfade back to zone music when exiting taverns
- Adds cozy ambient music to inn/tavern buildings

include/rendering/renderer.hpp

@@ -221,6 +221,7 @@ private:
     pipeline::AssetManager* cachedAssetManager = nullptr;
     uint32_t currentZoneId = 0;
     std::string currentZoneName;
+    bool inTavern_ = false;
 
     // Third-person character state
     glm::vec3 characterPosition = glm::vec3(0.0f);