Fixed config loading in migration script

src/alpine_bits_python/util/migrate_sqlite_to_postgres.py

@@ -42,6 +42,7 @@ from pathlib import Path
 # Add parent directory to path so we can import alpine_bits_python
 sys.path.insert(0, str(Path(__file__).parent.parent.parent))
 
+import yaml
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 
@@ -418,14 +419,19 @@ async def main():
     if args.target:
         target_url = args.target
     elif args.target_config:
-        # Load target config file
+        # Load target config file manually (simpler YAML without secrets)
         _LOGGER.info("Loading target database config from: %s", args.target_config)
         try:
-            target_config = load_config(args.target_config)
-            target_url = get_database_url(target_config)
+            config_path = Path(args.target_config)
+            with config_path.open() as f:
+                target_config = yaml.safe_load(f)
+            target_url = target_config["database"]["url"]
             _LOGGER.info("Successfully loaded target config")
         except (FileNotFoundError, ValueError, KeyError):
             _LOGGER.exception("Failed to load target config")
+            _LOGGER.info(
+                "Config file should contain: database.url with PostgreSQL connection"
+            )
             sys.exit(1)
     else:
         import os