{"success":true,"message":"WhatsApp API está rodando!","version":"2.0.0","frontend":"Build o frontend em /frontend para acessar o painel","endpoints":{"status":"GET /api/status","health":"GET /api/health","metrics":"GET /api/metrics","qrCode":"GET /api/qr","chats":"GET /api/chats","chatMessages":"GET /api/chats/:chatId","stats":"GET /api/stats","sendMessage":"POST /api/send-message","sendToChat":"POST /api/send-to-chat","login":"POST /api/auth/login","register":"POST /api/auth/register"}}