`completed` already puts the worker's summary inside the synthetic wake
turn, so the woken creator sees what was done. `review_requested` did
not: the summary rode the passive ping only, and the wake turn said just
"handed off for review", forcing the woken reviewer to re-read the board
(and losing the PR link the worker had already written).
Reuse the same first-line handoff the `completed` branch builds, so the
existing `gateway.kanban.wake.handoff` string renders it — no new locale
keys, no change to the passive message.
1f92c5d4ce