Update app.py

app.py

@@ -13,7 +13,7 @@ class EnvironmentManager:
     """Handles environment variable validation."""
     @staticmethod
     def load_env_variables() -> Dict[str, str]:
-        required_vars = ["OPENAI_API_KEY", "ENCRYPTION_KEY"]
+        required_vars = ["OPENAI_API_KEY"]
         env_vars = {var: os.getenv(var) for var in required_vars}
         
         missing_vars = [var for var, value in env_vars.items() if not value]