Update app4.py

app4.py

@@ -194,10 +194,9 @@ def update_news_hourly():
 # Async Together API
 # -------------------
 async def async_together_chat(messages):
-    api_key = st.secrets["TOGETHER_API_KEY"]  # Access here, not globally
     url = "https://api.together.xyz/v1/chat/completions"
     headers = {
-        "Authorization": f"Bearer {api_key}",
+        "Authorization": f"Bearer {os.environ['TOGETHER_API_KEY']}",
         "Content-Type": "application/json",
     }
     payload = {