Update app.py

app.py

@@ -18,7 +18,7 @@ class BasicAgent:
     def __init__(self):
         print("BasicAgent initialized.")
         load_dotenv()
-        self.api_key = os.getenv(TEST_AGENT_KEY)
+        self.api_key = os.getenv("TEST_AGENT_KEY")
         if not self.api_key:
             raise ValueError("OpenRouter API Key not found.")
         self.scorer_api_url = DEFAULT_API_URL # For fetching files/submitting