Enhance server startup logging and error handling

- Implemented detailed logging for server startup in server.py, including Python version, executable path, and parsed arguments.
- Added error handling for module imports and server initialization to improve robustness.
- Introduced an Entitlements.plist file for macOS to manage security settings.
- Updated tauri.conf.json to reference the new Entitlements.plist.
- Enhanced error reporting in main.rs for better debugging during server process management.

backend/server.py

@@ -5,45 +5,80 @@ This module provides an entry point that works with PyInstaller by using
 absolute imports instead of relative imports.
 """
 
-import argparse
-import uvicorn
+import sys
+import logging
 
-# Import the FastAPI app from the backend package
-from backend.main import app
-from backend import config, database
+# Set up logging FIRST, before any imports that might fail
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+    stream=sys.stderr,  # Log to stderr so it's captured by Tauri
+)
+logger = logging.getLogger(__name__)
+
+# Log startup immediately to confirm binary execution
+logger.info("=" * 60)
+logger.info("voicebox-server starting up...")
+logger.info(f"Python version: {sys.version}")
+logger.info(f"Executable: {sys.executable}")
+logger.info(f"Arguments: {sys.argv}")
+logger.info("=" * 60)
+
+try:
+    import argparse
+    import uvicorn
+    logger.info("Standard library imports successful")
+
+    # Import the FastAPI app from the backend package
+    logger.info("Importing backend modules...")
+    from backend.main import app
+    from backend import config, database
+    logger.info("Backend imports successful")
+except Exception as e:
+    logger.error(f"Failed to import required modules: {e}", exc_info=True)
+    sys.exit(1)
 
 if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description="voicebox backend server")
-    parser.add_argument(
-        "--host",
-        type=str,
-        default="127.0.0.1",
-        help="Host to bind to (use 0.0.0.0 for remote access)",
-    )
-    parser.add_argument(
-        "--port",
-        type=int,
-        default=8000,
-        help="Port to bind to",
-    )
-    parser.add_argument(
-        "--data-dir",
-        type=str,
-        default=None,
-        help="Data directory for database, profiles, and generated audio",
-    )
-    args = parser.parse_args()
+    try:
+        parser = argparse.ArgumentParser(description="voicebox backend server")
+        parser.add_argument(
+            "--host",
+            type=str,
+            default="127.0.0.1",
+            help="Host to bind to (use 0.0.0.0 for remote access)",
+        )
+        parser.add_argument(
+            "--port",
+            type=int,
+            default=8000,
+            help="Port to bind to",
+        )
+        parser.add_argument(
+            "--data-dir",
+            type=str,
+            default=None,
+            help="Data directory for database, profiles, and generated audio",
+        )
+        args = parser.parse_args()
+        logger.info(f"Parsed arguments: host={args.host}, port={args.port}, data_dir={args.data_dir}")
 
-    # Set data directory if provided
-    if args.data_dir:
-        config.set_data_dir(args.data_dir)
+        # Set data directory if provided
+        if args.data_dir:
+            logger.info(f"Setting data directory to: {args.data_dir}")
+            config.set_data_dir(args.data_dir)
 
-    # Initialize database after data directory is set
-    database.init_db()
+        # Initialize database after data directory is set
+        logger.info("Initializing database...")
+        database.init_db()
+        logger.info("Database initialized successfully")
 
-    uvicorn.run(
-        app,
-        host=args.host,
-        port=args.port,
-        log_level="info",
-    )
+        logger.info(f"Starting uvicorn server on {args.host}:{args.port}...")
+        uvicorn.run(
+            app,
+            host=args.host,
+            port=args.port,
+            log_level="info",
+        )
+    except Exception as e:
+        logger.error(f"Server startup failed: {e}", exc_info=True)
+        sys.exit(1)