fix: correct GitHub Pages asset URLs

Author: brayanjeshua

src/pages/index.astro

@@ -6,7 +6,8 @@ import liveData from '../data/live.json';
 
 const { agiIndex: AGI_INDEX, benchmarks, eta, updatedAt, history } = liveData;
 const base = import.meta.env.BASE_URL;
-const siteUrl = 'https://brayanjeshua.github.io/agi-clock';
+const assetBase = base.endsWith('/') ? base : `${base}/`;
+const siteUrl = 'https://brayanjeshua.github.io/agi-clock/';
 const updatedLabel = new Date(updatedAt).toLocaleDateString('en-US', {
   month: 'short',
   day: 'numeric',
@@ -33,7 +34,7 @@ const trendLabel = (trend: string) => {
       content="AGI Clock is an open-source benchmark tracker for measuring AI progress toward expert-human performance."
     />
     <title>AGI Clock — Open-source AGI progress tracker</title>
-    <link rel="icon" type="image/svg+xml" href={`${base}favicon.svg`} />
+    <link rel="icon" type="image/svg+xml" href={`${assetBase}favicon.svg`} />
     <meta property="og:title" content="AGI Clock — Open-source AGI progress tracker" />
     <meta
       property="og:description"
@@ -47,7 +48,7 @@ const trendLabel = (trend: string) => {
       name="twitter:description"
       content="Open-source tracker of AI benchmark progress toward Artificial General Intelligence."
     />
-    <link rel="sitemap" href={`${base}sitemap-index.xml`} />
+    <link rel="sitemap" href={`${assetBase}sitemap-index.xml`} />
     <script type="application/ld+json" set:html={JSON.stringify({
       '@context': 'https://schema.org',
       '@type': 'WebSite',