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.

lib/ollama.ts

@@ -0,0 +1,42 @@
+import { Ollama } from "ollama";
+
+export const OLLAMA_HOST = process.env.OLLAMA_HOST || "http://localhost:11434";
+
+export async function listModelsViaSdk() {
+  try {
+    const client = new Ollama({ host: OLLAMA_HOST });
+    const res = await client.list();
+    return res?.models ?? [];
+  } catch (e) {
+    throw e;
+  }
+}
+
+export async function listModelsViaHttp() {
+  const url = `${OLLAMA_HOST}/api/tags`;
+  const res = await fetch(url, { cache: "no-store" });
+  if (!res.ok) throw new Error(`Ollama HTTP error ${res.status}`);
+  const data = await res.json();
+  return data?.models ?? [];
+}
+
+export async function chatWithStream(
+  model: string,
+  messages: Array<{ role: string; content: string }>,
+  options?: Record<string, unknown>,
+  system?: string
+) {
+  const client = new Ollama({ host: OLLAMA_HOST });
+  return client.chat({
+    model,
+    messages,
+    stream: true,
+    options,
+    system,
+  });
+}
+
+export async function pullModel(model: string) {
+  const client = new Ollama({ host: OLLAMA_HOST });
+  return client.pull({ model, stream: true });
+}