Recover prompt delivery and stuck sessions in v0.1.10

[lyc-aon]

Summary

• preserve structured host failures so rejected prompts explain what happened while keeping the draft intact
• add a challenged, idempotent Terminate runtime action so stale workers can be closed before archive or deletion
• update to app-wire 0.5.3 and the t4code-16.5.0-appserver-4 runtime, which bounds terminal RPC frames, reaps failed readers, and makes crash recovery restartable
• ship the direct GPT-5.6 Sol release maintainer for future stable OMP releases
• prepare T4 Code 0.1.10 packages, provenance, release notes, and site data

The reproduced failure was an agent_end RPC line above the 1 MiB host limit. The reader exited, but its child kept the session lock. This release bounds that terminal frame, guarantees worker teardown, and shows the structured outcome in T4 instead of a generic rejection.

Verification

• 864 repository tests passed
• 16 Playwright end-to-end tests passed
• all builds passed
• release consistency and all five provenance manifests passed
• lint and all nine typechecks passed
• packaging and tooling suites passed
• git diff --check passed