internal/

Package audit provides the audit log interface and NoOp implementation for compliance-grade event recording.

Package config provides service-global configuration loaded from environment variables.

Package handler implements the TokenEngine gRPC service handlers.

Package health provides HTTP health check handlers and the Checker extension interface.

Package interceptor implements the gRPC interceptor chain for the token-engine service.

Package lock provides a distributed lock interface and Redis-backed implementation.

Package observability provides service observability interfaces, real implementations, library adapter types, centralized error mapping, and correlation ID management.

Package reconciliation provides the reconciler interface and NoOp implementation for background token store reconciliation.

Package registry provides tenant and caller registry interfaces and static implementations.

Package store provides the idempotency store interface and its NoOp implementation.

Package testutil is a generated GoMock package.