`apply()` resolved the deployment config through schemastery's `Config()`,
which always fills the schema default (`quiet`, pinned by the config test),
so the `= 'quiet'` destructure fallback was dead at runtime on every path —
and as a defaulted parameter it formed a branch no test could ever
exercise against the per-file coverage gate. Remove the fallback and let
the schema be the single home of the default.
`materialize` ran `setupTransaction.assertIntact()` only after
`ctx.agents.create()/resume()` resolved — but the factory publishes
`session/created` (and the persistence backend writes the descriptor seed)
inside that call, and `rollbackUnpublished()` only disposes the live
handle; the persistence seam has no delete. A setup contribution revoked
during construction therefore left a durable ghost: `startContinuable()`
rejected with `ACTIVATION_SETUP_REVOKED` and returned no child id, yet
`list_agents` surfaced a persisted `continuable` child whose log carries a
valid descriptor — so a later `send_message` could cold-resume a child the
deployment had explicitly refused to establish.
Move the validation into the creation callback, before the factory can
publish: `assertIntact()` then rejects the create/resume call itself, so
no session is ever persisted for a rejected child. Commit the batch in the
same callback so a later contribution removal releases the installation
instead of invalidating a child already being established (live
revocation, matching the resident semantics).
Pins the rollback regression test to assert that no `session/created` is
ever announced for the rejected child (the parent is created before the
listener registers), in addition to the existing registry assertion.
Tianyi Cui