{"service":"Flowa CASCADE Backend","version":"2.0.0","status":"operational","timestamp":"2026-04-23T13:32:20.942Z","endpoints":{"payment":"POST /api/payment","stats":"GET /api/payment/stats/:merchantId","health":"GET /api/payment/health","pixGenerate":"POST /api/pix/generate","pixStatus":"GET /api/pix/status/:transactionId","webhookPix":"POST /api/webhooks/pix","webhookCielo":"POST /api/webhooks/cielo","webhookRede":"POST /api/webhooks/rede","installmentsCalculate":"GET /api/installments/calculate?amount=550","transactionsStats":"GET /api/transactions/stats/:merchantId","adminMerchants":"GET /api/admin/merchants","adminMetrics":"GET /api/admin/metrics"}}