2.5.6

Added

• Optional A2A delegation inside native RLM's existing Python tool, with durable
  task handles, bounded context and results, restart reconciliation and explicit
  hosted credit admission. Routes and paid fallback remain off by default.
• Open Optional A2A in the Harness Hub or :rlm a2a to configure peers,
  key environment references and credit limits. Save project profiles or branch
  into a new session; inspect the active worker policy, remote tasks and usage.
• Choose RLM from :connect to see host, Docker and Monty execution choices
  alongside optional A2A setup before continuing the model connection flow.
• Retained agent inboxes and explicit child continuations, root-wide semantic
  subcall admission, and Monty resource limits and persistent checkpoints.
• Hosted specialist entitlements, durable customer credit reservations and
  unverified remote evidence receipts in the existing WorkOrder acceptance flow.

Notes

• Paid hosted execution remains disabled on the public Cloud Run catalogue.
  The hosted specialist implementation supports a single durable host pilot;
  multi-instance Cloud Run execution requires a shared durable backend.
• Hosted service setup requires a signing secret, customer credits, durable
  task and credit stores, and an isolated read-only specialist harness.
• Native RLM and WorkOrders retain their existing execution and acceptance paths.
  Real workload cost and coding-quality measurements remain outstanding.