docs: replace README with Next.js boilerplate template

Updated README.md from a detailed OllaHub project description to the standard Next.js getting started template, likely to initialize or reset the project as a Next.js application.

app/page.tsx

@@ -0,0 +1,21 @@
+import { ModeToggle } from "@/components/mode-toggle";
+import { ChatContainer } from "@/components/chat/ChatContainer";
+import { ClientHome } from "@/components/ClientHome";
+
+async function fetchModels() {
+  try {
+    const baseUrl = process.env.NEXT_PUBLIC_BASE_URL || "http://localhost:3000";
+    const res = await fetch(`${baseUrl}/api/ollama/models`, {
+      cache: "no-store",
+    });
+    if (!res.ok) return { offline: true, models: [] };
+    return res.json();
+  } catch {
+    return { offline: true, models: [] };
+  }
+}
+
+export default async function Home() {
+  const { offline, models } = await fetchModels();
+  return <ClientHome offline={offline} models={models} />;
+}