modified code for HS secrets

app.py

@@ -3,9 +3,18 @@ import os
 import google.generativeai as genai
 from dotenv import load_dotenv
 
-# Load API key from .env file
-load_dotenv()
-genai.configure(api_key=os.getenv("GEMINI_API_KEY"))
+# # Load API key from .env file
+# load_dotenv()
+# genai.configure(api_key=os.getenv("GEMINI_API_KEY"))
+
+# Retrieve API key from Hugging Face Secrets
+api_key = os.getenv("GEMINI_API_KEY")
+
+if not api_key:
+    raise ValueError("API key not found. Make sure it is set in Hugging Face Secrets.")
+
+# Configure Gemini API
+genai.configure(api_key=api_key)
 
 # Title of the app
 st.title("KAI Chat")