A complete backend system designed for modern SaaS applications: Authentication (JWT-based) Multi-tenant architecture (organizations, teams, roles) Stripe billing integration (payments + subscriptions ready) Analytics engine (metrics,revenue,growthtracking) AI-powered insights and recommendations Forecasting and what-if simulations External integrations (GA4, Stripe,HubSpot) File uploads + data ingestion (CSV support Background jobs with Celery Clean, scalable architecture (FastAPI + PostgreSQL)