The previous commit deleted `schedule_authorized` and with it three
denial tests, leaving the permit behaviour it introduced unasserted:
nothing in the suite would notice a subtree check creeping back into
the scheduling handlers.
These four pin the inverse of the decision the deleted predicate used
to make. They sit at the handler level because that is the lowest layer
where the decision still exists to be observed — the predicate, its pure
`_in` form and the wrapper are gone, so there is no function left whose
return value *is* the decision, and the layer above (`dispatch`) reaches
these verbs through `require_group("scheduling")`, a different gate that
is still present and not the one under test.
`cancel` and `edit` assert the row afterwards rather than stopping at
`Response::Ok`: a check that silently declines to act while still
answering `Ok` is the regression a response-code assertion misses.
`list_schedules` is the structurally different case — it never rejected,
it filtered per row, so its assertion is that another owner's row is
present at all. `fire` asserts the response only; the fan-out legitimately
finds no live container under test and `fire_now` reports that inside
`Ok(report)`, so the response code is the only honest signal there.
Verified by mutation, not by inspection: reintroducing an ancestry walk
into the four handlers flips all four tests to failing (the three
mutating verbs on the refusal, `list_schedules` on an empty list) and
leaves the two pre-existing ghost-filter tests untouched.
These four cover the complete set of gate points this branch removes.
The roster listing that used to be the fifth is no longer one: `main`
removed `list_containers`, `Request::ListDescendants` and the handler
behind them outright, so there is nothing left there to assert.
Refs #4472
8ea1f7daee