fetch GitHub star count dynamically in docs header (#1202)

* fetch GitHub star count dynamically in docs header

Replace the hardcoded "27k" star count with a live fetch from the
GitHub API, revalidated every 24 hours via Next.js fetch caching.
Gracefully hides the count if the API is unreachable.

* remove GITHUB_TOKEN usage from star count fetch

docs/src/components/header.tsx

@@ -1,10 +1,10 @@
-"use client";
-
 import Link from "next/link";
 import { ThemeToggle } from "./theme-toggle";
 import { Search } from "./search";
+import { getStarCount } from "@/lib/github";
 
-export function Header() {
+export async function Header() {
+  const stars = await getStarCount();
   return (
     <header className="sticky top-0 z-50 bg-white/90 backdrop-blur-sm dark:bg-neutral-950/90">
       <div className="flex h-14 items-center justify-between px-4 gap-6">
@@ -68,7 +68,7 @@ export function Header() {
             >
               <path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
             </svg>
-            <span>27k</span>
+            {stars && <span>{stars}</span>}
           </a>
           <a
             href="https://www.npmjs.com/package/agent-browser"

docs/src/lib/github.ts

@@ -0,0 +1,20 @@
+const REPO = "vercel-labs/agent-browser";
+const REVALIDATE = 86400;
+
+export async function getStarCount(): Promise<string> {
+  try {
+    const res = await fetch(`https://api.github.com/repos/${REPO}`, {
+      headers: { Accept: "application/vnd.github.v3+json" },
+      next: { revalidate: REVALIDATE },
+    });
+    if (!res.ok) return "";
+    const data = await res.json();
+    const count = data.stargazers_count;
+    if (typeof count !== "number") return "";
+    if (count >= 1000)
+      return `${(count / 1000).toFixed(count >= 10000 ? 0 : 1)}k`;
+    return String(count);
+  } catch {
+    return "";
+  }
+}