debug: add detailed logging for Flask initialization

main.py

@@ -29,9 +29,27 @@ pd.options.plotting.backend = "plotly"
 
 
 app = Flask(__name__)
-app.config.from_mapping(CONFIGS)
-app.config.update(CACHE_CONFIG)
-cache = Cache(app)
+
+# Configure logging
+import sys
+logging.basicConfig(
+    stream=sys.stdout,
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+)
+logger = logging.getLogger(__name__)
+
+try:
+    logger.info("Configuring Flask app...")
+    app.config.from_mapping(CONFIGS)
+    logger.info("Updating cache config...")
+    app.config.update(CACHE_CONFIG)
+    logger.info("Initializing cache...")
+    cache = Cache(app)
+    logger.info("Flask app initialized successfully!")
+except Exception as e:
+    logger.error(f"Failed to initialize Flask app: {e}", exc_info=True)
+    raise