`hermes kanban promote --force <id>` printed `Promoted <id> -> ready` and
then the very next claim (a human `claim`, or the dispatcher tick seconds
later) demoted the task back to `todo` with `claim_rejected
{parents_not_done}` and returned None (#106195). The non-force refusal
even pointed operators at `--force` as the escape hatch.
The claim gate is deliberate: `claim_task` is the single enforcement point
("never ready -> running with an undone parent, whichever writer set
'ready'", cda20eec0c), and `complete_task`/`request_review` re-check the
same predicate, so a child let through by a forced claim could still never
finish. A promotion override therefore has no honest outcome; the
dependency edge is the real knob.
- drop `--force` from `promote` (parser, CLI handler, `promote_task`
kwarg, the `forced` event field nothing read)
- the refusal message now states why the gate cannot be bypassed and names
the working remedies: complete the parents or `hermes kanban unlink`
- two invariant tests: refusal on an undone parent leaves `todo` with no
fake `ready`; the flag no longer parses
Salvage direction from #75354 by @vyacheslavk (diagnosis of the promote ->
claim gap); the consume-at-claim authorization there is not taken because
the same parent gate also blocks completion of the forced child.
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