Fix ReferenceError: handleAdminTopupOptions is not defined

- Added missing closing brace for handleTopupConfirm function
- Removed extra closing brace after handleAdminMe function
- Admin functions (handleAdminTopupOptions, handleAdminTopupCheckout, handleAdminTopupConfirm) were incorrectly nested inside handleTopupConfirm scope, making them inaccessible to the router

chat/server.js

@@ -13245,6 +13245,7 @@ async function handleTopupConfirm(req, res, url) {
     log('top-up confirmation failed', { error: String(error), userId: user?.id, sessionId });
     return sendJson(res, 400, { error: error.message || 'Unable to confirm payment' });
   }
+}
 
 // -------------------------
 // Admin test endpoints for Dodo top-ups
@@ -13451,7 +13452,6 @@ async function handleAdminMe(req, res) {
   if (!session) return;
   return sendJson(res, 200, { ok: true, admin: { username: ADMIN_USER || 'admin' } });
 }
-}
 
 function resolvePaygProduct(currency = 'usd') {
   const normalized = String(currency || 'usd').toLowerCase();