moved api key out of code

tools/weather.py

@@ -1,6 +1,7 @@
 from smolagents.tools import Tool
 import requests
 from typing import Any, Optional
+import os  # Added for accessing environment variables
 
 class WeatherTool(Tool):
     """Tool for getting weather information for a location."""
@@ -27,7 +28,7 @@ class WeatherTool(Tool):
         """
         try:
             # Using OpenWeatherMap API with a free tier (limited requests)
-            api_key = "1ae035abc608d0e1095a5472dc989299"  # OpenWeatherMap API key
+            api_key = os.getenv('OPENWEATHERMAP_API_KEY')  # OpenWeatherMap API key from env variable
             url = f"http://api.openweathermap.org/data/2.5/weather?q={location}&appid={api_key}&units=metric"
             
             response = requests.get(url)