reserveEquipment now enqueues a booking_confirmed email to the booked-for
member (always; a manager booking on someone else's behalf still emails
the target). cancelReservation enqueues a booking_cancelled email ONLY
when the actor is not the affected member, so self-cancels stay silent.
Adds renderBookingEmail + bookingDedupeKey to lib/notifications-logic.ts
(extracts a shared renderShell at the same time so the 6 upcoming
templates do not duplicate the HTML wrapper). 6 new render/dedupe unit
tests cover subject lines, range + location lines, fallback copy when
names are missing, and HTML escaping of injected names.
Suite 550, build clean. No schema change (the notifications.type column
is text), no dispatcher change.
reserveEquipment was check-then-insert with no DB guard: two concurrent
requests both passed the in-memory overlap check and double-booked a
machine. Migration 042 adds btree_gist + a GiST EXCLUDE constraint
(equipment_id =, tstzrange && ) WHERE status='reserved', making the DB
the arbiter; the action maps the 23P01 violation to the existing
friendly overlap message. App-side check kept as a fast pre-check.
Schema + DB maps updated.
equipment.ts: registry CRUD (equipment.manage; delete refused once
reservations exist, archive instead), listEquipmentForMembers (active
items with a member_certified flag computed via the service client),
reserveEquipment / cancelReservation as validated service-client writes
that enforce status, no-overlap and the required-certification gate with
an equipment.manage override (and manager booking on a member's behalf),
listEquipmentReservations and getMyReservations. equipment-guard mirrors
the other module guards. Barrel + API_REFERENCE updated.