internal/

Package delivery runs the delivery pipeline both messaging lanes share: everything that happens to one consumed message between "bytes arrived" and "outcome recorded" — trace extraction from the lane's carrier, the consumer span, the per-message lease scope, handler invocation, panic-to-error, one consumed record at completion, and the lane's own outcome line.

Package lanecontract holds the contract every messaging lane driving the delivery pipeline must satisfy, and the fixture that drives it.

Package payloaderr holds the payload-error core both messaging lanes build their typed consumers on: the decode and struct-validation steps, and a failure rendering that never echoes the body that caused it.

Package sealruntime is the link-time seam between the messaging package and the payload-sealing codec (ADR-097).

Package tenantstamp owns the tenant stamp: the carrier entry that carries a tenant identity between a producer and a consumer.