fix: TS syntax in define:vars IIFEs causes SyntaxError — use plain JS for authUrl

site/src/layouts/Base.astro

@@ -592,7 +592,7 @@ try {
   <!-- User widget: only needed for multi-user (single-user nav links are static) -->
   {!singleHandle && (
     <script define:vars={{ baseUrl }}>
-      const authUrl: string = (window as any).__bincioAuthUrl ?? '';
+      const authUrl = window.__bincioAuthUrl || '';
       (async () => {
         try {
           const r = await fetch('/api/me', { credentials: 'include' });
@@ -734,7 +734,7 @@ try {
 
   {editEnabled && (
     <script define:vars={{ editUrl, baseUrl }}>
-      const authUrl: string = (window as any).__bincioAuthUrl ?? '';
+      const authUrl = window.__bincioAuthUrl || '';
       const modal         = document.getElementById('upload-modal');
       const openBtn       = document.getElementById('upload-btn');
       const closeBtn      = document.getElementById('upload-close');