POST /api/v1/appointment/{uuid}/service-reschedule takes only a start time and
derives the length from the appointment's services. PATCH also validates the
duration, but the client must already know the correct slot_end; not needing that
knowledge is what lets the edit form drop its manual time inputs.
The start must be a member of getServiceStartTimes(), not merely free:
isSlotTaken() reports collisions with other appointments, while the offered list
also applies shift bounds, holidays, date overrides, the booking window and the
buffer. Without it a secretary could park an appointment at 3am.
forManagement comes from canManageContext(), not canManage(): a patient moving
their own appointment must still respect the public booking window.
Task: docs/new_feture/taskes/task-00-service-mode-completion/
Slot-mode contract: unchanged (--group=slot-mode-frozen green)
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>