2.3.0

Add an optional cooperative workflow-task bridge for service adapters. Delivery persists the original request and authored call boundary while preserving the workflow lease for bounded cleanup.

Parallel delivery reserves the full durable sequence range. Selection handles identify their previously opened operation. Retries reuse the persisted marker, interrupted work is fenced, and terminal cleanup retains the original cancellation outcome.

Existing custom workflow-task bridges remain compatible. Worker protocol 1.19 is unchanged. The service request, observation and worker capability integration continues in durable-workflow/.github#136.

Implementation and qualification: #598