Audit Logging

All security-sensitive operations logged to immutable audit trail.

Audit Event Fields

{
  "event_id": "uuid",
  "actor_id": "user-uuid",
  "action": "PAYMENT_CREATED",
  "resource": "payment-uuid",
  "timestamp": "ISO-8601",
  "ip_address": "x.x.x.x",
  "correlation_id": "uuid"
}

Published via AuditEventCreated Kafka event.