feat: Add VLC service for sound playback and management

- Implemented VLCService to handle sound playback using VLC.
- Added routes for soundboard management including play, stop, and status.
- Introduced admin routes for sound normalization and scanning.
- Updated user model and services to accommodate new functionalities.
- Enhanced error handling and logging throughout the application.
- Updated dependencies to include python-vlc for sound playback capabilities.

pyproject.toml

@@ -16,6 +16,7 @@ dependencies = [
     "flask-sqlalchemy==3.1.1",
     "pydub==0.25.1",
     "python-dotenv==1.1.1",
+    "python-vlc>=3.0.0",
     "requests==2.32.4",
     "werkzeug==3.1.3",
 ]