feat: auto select the first model as default model

frontend/src/core/models/hooks.ts

@@ -2,10 +2,11 @@ import { useQuery } from "@tanstack/react-query";
 
 import { loadModels } from "./api";
 
-export function useModels() {
+export function useModels({ enabled = true }: { enabled?: boolean } = {}) {
   const { data, isLoading, error } = useQuery({
     queryKey: ["models"],
     queryFn: () => loadModels(),
+    enabled,
   });
   return { models: data ?? [], isLoading, error };
 }