[P1] ARCH.5 - API Gateway Setup

[echetoui]

Effort: 10h | Owner: DevOps
Sprint: Phase 6 (future)

Tasks

• Setup API Gateway (AWS or Node.js gateway)
• Implement request throttling
• Add request logging/monitoring
• Setup webhook notifications
• Implement request signing

Acceptance Criteria

• Gateway handles 1000+ req/s
• Rate limiting working correctly
• Request/response logging enabled
• Monitoring dashboards set up