🔴 Alta priority: tema claro/escuro, modal tags, favicon K, badge modelo dinâmico

server.js

@@ -34,6 +34,15 @@ app.get('/login', (req, res) => {
   }
 });
 
+// API de status do modelo
+app.get('/api/status', requireAuth, (req, res) => {
+  res.json({
+    model: process.env.OPENAI_MODEL || 'openai/gpt-4.1-nano',
+    provider: 'openrouter',
+    timestamp: new Date().toISOString()
+  });
+});
+
 // API para Login
 app.post('/api/login', (req, res) => {
   const { password } = req.body;