Start on new sidebar (#456)

Co-authored-by: shadcn <m@shadcn.com>

app/(chat)/page.tsx

@@ -1,7 +1,23 @@
-import { Chat } from "@/components/custom/chat";
-import { generateUUID } from "@/lib/utils";
+import { cookies } from 'next/headers';
+
+import { Chat } from '@/components/custom/chat';
+import { DEFAULT_MODEL_NAME, models } from '@/lib/model';
+import { generateUUID } from '@/lib/utils';
 
 export default async function Page() {
   const id = generateUUID();
-  return <Chat key={id} id={id} initialMessages={[]} />;
+
+  const cookieStore = await cookies();
+  const value = cookieStore.get('model')?.value;
+  const selectedModelName =
+    models.find((m) => m.name === value)?.name || DEFAULT_MODEL_NAME;
+
+  return (
+    <Chat
+      key={id}
+      id={id}
+      initialMessages={[]}
+      selectedModelName={selectedModelName}
+    />
+  );
 }