Add professional voice assistant server implementation

- FastAPI-based TTS server using Piper neural text-to-speech
- Poetry for dependency management and virtual environments
- OpenAI-compatible API endpoints for seamless integration
- Support for multiple voice models (Ryan, Alan, Lessac)
- Robust error handling and voice fallback system
- Professional logging and configuration management
- Docker-ready with proper Python packaging

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

voice-server/src/voice_server/main.py

@@ -0,0 +1,82 @@
+"""Main entry point for the voice server."""
+import logging
+import sys
+from pathlib import Path
+import uvicorn
+from .config import config
+from .api import app
+
+logger = logging.getLogger(__name__)
+
+
+def check_prerequisites():
+    """Check if all prerequisites are met."""
+    errors = []
+    
+    # Check if voices directory exists
+    if not config.voices_dir.exists():
+        errors.append(f"Voices directory not found: {config.voices_dir}")
+        errors.append("Run: mkdir -p ~/.local/share/piper-voices")
+    
+    # Check if default voice files exist
+    if not config.validate_voice_files():
+        voice_name = config.default_voice
+        model_path = config.get_voice_model_path()
+        errors.append(f"Default voice '{voice_name}' files not found")
+        errors.append(f"Expected model at: {model_path}")
+        errors.append("Download voice models from: https://huggingface.co/rhasspy/piper-voices")
+    
+    # Check available voices
+    available_count = sum(
+        1 for voice in config.available_voices 
+        if config.validate_voice_files(voice)
+    )
+    
+    if available_count == 0:
+        errors.append("No voice models available")
+        errors.append("Please download at least one voice model")
+    
+    return errors
+
+
+def main():
+    """Main entry point."""
+    # Set up logging
+    logging.basicConfig(
+        level=getattr(logging, config.log_level.upper()),
+        format="%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+    )
+    
+    logger.info("Starting Homelab Voice Server")
+    logger.info(f"Configuration: {config.dict()}")
+    
+    # Check prerequisites
+    errors = check_prerequisites()
+    if errors:
+        logger.error("Prerequisites not met:")
+        for error in errors:
+            logger.error(f"  - {error}")
+        sys.exit(1)
+    
+    # Log available voices
+    available_voices = [
+        voice for voice in config.available_voices 
+        if config.validate_voice_files(voice)
+    ]
+    logger.info(f"Available voices: {available_voices}")
+    logger.info(f"Default voice: {config.default_voice}")
+    
+    # Start server
+    logger.info(f"Starting server on {config.host}:{config.port}")
+    
+    uvicorn.run(
+        app,
+        host=config.host,
+        port=config.port,
+        log_level=config.log_level,
+        access_log=True
+    )
+
+
+if __name__ == "__main__":
+    main()