Fix import error in build_index.py for module execution

- Add flexible import pattern to handle both direct execution and module execution
- Fixes ModuleNotFoundError: No module named 'settings' when running python -m app.build_index
- Tries relative import, then app.settings, then settings as fallback

app/build_index.py

@@ -13,9 +13,17 @@ import time
 import argparse
 from concurrent.futures import ThreadPoolExecutor, as_completed
 import logging
-from settings import get_settings
 import pickle
 
+# Try different import patterns to handle both direct execution and module execution
+try:
+    from .settings import get_settings
+except ImportError:
+    try:
+        from app.settings import get_settings
+    except ImportError:
+        from settings import get_settings
+
 # Configure logging
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
 logger = logging.getLogger(__name__)