fix: remove tracked cache/log files, wire up dotenv

monitor.log

@@ -1,3 +0,0 @@
-2026-03-21 23:10:16,010 [INFO] === Flight Monitor Starting ===
-2026-03-21 23:10:16,011 [ERROR] Adapter initialization failed: KIWI_API_KEY environment variable not set. Get your API key from https://tequila.kiwi.com/portal/login
-2026-03-21 23:10:16,011 [INFO] Set KIWI_API_KEY environment variable to enable monitoring

monitor.py

@@ -11,9 +11,13 @@ from datetime import datetime, timedelta
 from pathlib import Path
 from typing import List, Dict, Any
 
+from dotenv import load_dotenv
 from adapters.base import FlightAdapter
 from adapters.kiwi import KiwiAdapter
 
+# Load environment variables from .env if present
+load_dotenv()
+
 
 # Configure logging
 logging.basicConfig(