Update src/app.py

src/app.py

@@ -5,7 +5,8 @@ from openai import OpenAI
 import time
 
 # Initialize OpenAI client
-client = os.environ["OPENAI_API_KEY"] # OpenAI(api_key = OPENAI_API_KEY)  # Assumes OPENAI_API_KEY is set in environment
+OPENAI_API_KEY = os.environ["OPENAI_API_KEY"]
+client = OpenAI(api_key = OPENAI_API_KEY)  # Assumes OPENAI_API_KEY is set in environment
 
 def chat_with_gpt(message, history, system_prompt):
     # Convert Gradio history format to OpenAI messages format