About
This skill provides specialized domain knowledge for maintaining and extending the Sr Cardoso backend infrastructure, which is built on Node.js, Express, and Google Cloud Run. It assists in implementing complex business logic such as appointment scheduling within specific timezones, Role-Based Access Control (RBAC) via JWT, and financial management. By leveraging Firestore transactions and Zod validation, the skill ensures data integrity across services, including automated WhatsApp reminders and branding assets stored in Google Cloud Storage, while maintaining strict API contracts with the frontend.