fix

assistant_bot/config.py

@@ -115,7 +115,7 @@ def get_default_ollama_model() -> str:
 def get_yandex_cloud_folder() -> str:
     load_env_file()
     folder = os.getenv(YANDEX_CLOUD_FOLDER_ENV_NAME, "").strip()
-    if not folder:
+    if not folder or folder == "":
         raise RuntimeError(
             f"Set {YANDEX_CLOUD_FOLDER_ENV_NAME} in environment or .env file."
         )