Move fetch_models_for_group from queries to models module

main.py

@@ -4,8 +4,8 @@ from contextlib import asynccontextmanager
 from fastapi import FastAPI, Request
 import gradio as gr
 from gradio.routes import mount_gradio_app
-from api.router import router
-from db.queries import fetch_models_for_group
+from api.router import router    
+from db.models import fetch_models_for_group
 from models.loader import load_models, model_pipelines
 from config.settings import RESOURCE_GROUP, DATABASE_URL