Backend (artifacts/api-server/src/routes/executive-meetings.ts):
- New helpers computeCascadeShift + applyCascadeShift; new schema
cascadePreviewSchema; cascadeFollowing flag on postpone-minutes
and reschedule.
- POST /executive-meetings/:id/cascade-preview returns followers +
blockedBy.
- Writer paths now SELECT followers FOR UPDATE inside the txn so
concurrent mutations cannot lose updates and audit oldStart/oldEnd
always reflect the locked-current values (architect feedback).
- Reschedule only cascades when same date AND newStart > oldStart.
- Midnight rejection rolls back the primary too; named offender is
surfaced verbatim to the UI.
- One meeting_cascade_shift audit per follower (trigger meeting +
delta in the row for replay).
Frontend (artifacts/tx-os/src/components/executive-meetings/
upcoming-meeting-alert.tsx):
- CascadePromptBlock with loading / blocked / normal variants and
data-testids cascade-prompt[-blocked|-loading], cascade-keep-times,
cascade-shift-following, cascade-back, cascade-follower-{id}.
- runCascadePreview helper with in-flight + busy guard against
duplicate submissions; falls through to single-meeting submit when
no followers and not blocked.
- rescheduleSubmit extracted; cascade_crosses_midnight from server
is caught and re-rendered as the blocked variant.
i18n: cascade* keys under executiveMeetings.alert in en.json + ar.json
(Arabic plural zero/one/two/few/many/other for header + shift action).
Tests:
- 8 cascade backend tests in executive-meetings.test.mjs (preview
shape, atomic shift, skip cancelled/completed, midnight rollback,
reschedule delta + no-op cases) all pass.
- New e2e "Reschedule cascade — opting in shifts all later same-day
meetings".
- Made two existing tests (Postpone by 10 minutes, conflict warning)
pollution-tolerant by polling for either the cascade prompt or the
meeting-postponed audit row.
Pre-existing flaky tests (notifications fan-out, postpone race, row
color realtime, reorder, status transitions, alert-done/close
realtime, reschedule-different-day visibility, cancel/renumber strict
mode) are not related to this work and were not modified.
riyadhafraa
c64e93c146