For a partial run (committed, exit 1 after record_user_action) the toast said
only "Action failed (exit 1)" and dropped the receipt's recovery instruction;
on exit 0 it named follow-ups from whatever receipt the status route attached,
which is the latest one when this action has none.
Keep the update POST's action_id and read the debt through the shared
updateDebt (committed success|partial, matching action_id only). The toast
composes it with every verdict: follow-ups keep the rerun remedy, a user
action shows the producer's own instruction verbatim (never "re-run hermes
update", which does not restore a parked stash).
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