Three engine-agnostic pins, landed BEFORE the worker-thread port so the
port commit demonstrates contract preservation against them:
- tool-workflow: the tool:<toolName> prompt-section registration was
entirely unasserted — assemble() now pins the section present under
the CONFIGURED name and gone after fiber dispose (the packages
AGENTS.md dispose-and-assert-cleanup rule; tool-bash is the template).
- tool-workflow: drop the dead `??` re-defaulting of already-
schemastery-resolved config (the hidden-fallback shape AGENTS.md
bans) and the direct-apply test that existed only to cover those
branches; both engines' `config as ResolvedConfig` is the pattern.
- workflow-vm: workflow/end was asserted only on completed runs — the
cancelled path and the grace force-settle path now pin the event and
its stopReason/error/agentsStarted payload (an observer's only death
signal on those paths).
imccyu
fbc9eb313c