added secret

app.py

@@ -2,18 +2,20 @@ import os
 from google import genai
 from PIL import Image
 import gradio as gr
-from dotenv import load_dotenv
-
-# Load environment variables
-load_dotenv()
-
+from huggingface_hub.secrets import get_secret
 
+def get_api_key():
+    try:
+        return get_secret('GEMINI_API_KEY')
+    except Exception as e:
+        return None
 
 def analyze_images(image1, image2):
-    client = genai.Client(
-        api_key=os.getenv('GEMINI_API_KEY')
-    )
-
+    api_key = get_api_key()
+    if not api_key:
+        return "Error: GEMINI_API_KEY not found in HF Spaces secrets"
+    
+    client = genai.Client(api_key=api_key)
     chat = client.chats.create(model="gemini-2.0-flash")
 
     try: