Lead intake, visa checklist, embassy status & agent commission — Level 1 Data Flow Diagram (DFD) showing external entities, processes, data stores, and labeled data flows.
Next.jsPostgreSQLRedisRTL
External entityUsers or systems outside the application boundary (customers, admins, devices).
ProcessBusiness logic handled by Next.js API routes / server actions.
Data storePostgreSQL for durable records; Redis for cache, sessions, and live data.