+-------------------+ +-------------------+ +-------------------+ | Front‑End (SPA) | <--API--> | API Gateway | <--gRPC->| AI/ML Service | | React/Next.js | | (Node/Go) | | (TensorFlow/PyTorch) | +-------------------+ +-------------------+ +-------------------+ | | | | | (Redis cache) | | +---------------------------+ | | v v CDN (static assets) PostgreSQL / MongoDB (content, tags, user prefs)