contextNotice hardcoded 'ask the operator' and 'Only the operator can
approve the roll', so setting leadRollover.requireOperatorConfirm to
false stopped the daemon refusing the roll but never stopped the lead
being told to ask. Thread the effective config value into
contextNotice: when true the text stays byte-identical, when false it
tells the lead to confirm on its own judgement against the three
handover-file checks instead.
LeadRollover.confirm's own enforcement is untouched — this is the
message only.
Dai Ha