add openai model to config, rework logging to use appdirs logging dir

src/logic/openai.py

@@ -1,8 +1,9 @@
 from openai import OpenAI
 from src import settings
 import json
+from src import LOG_DIR
 
-model = "gpt-4o"
+model = settings.openAI.model
 api_key = settings.openAI.api_key
 client = OpenAI(api_key = api_key)