Provide default version

Author: pamelafox

src/backend/fastapi_app/openai_clients.py

@@ -13,7 +13,7 @@ async def create_openai_chat_client(
     openai_chat_client: openai.AsyncAzureOpenAI | openai.AsyncOpenAI
     OPENAI_CHAT_HOST = os.getenv("OPENAI_CHAT_HOST")
     if OPENAI_CHAT_HOST == "azure":
-        api_version = os.environ["AZURE_OPENAI_VERSION"]
+        api_version = os.environ["AZURE_OPENAI_VERSION"] or "2024-03-01-preview"
         azure_endpoint = os.environ["AZURE_OPENAI_ENDPOINT"]
         azure_deployment = os.environ["AZURE_OPENAI_CHAT_DEPLOYMENT"]
         if api_key := os.getenv("AZURE_OPENAI_KEY"):