Refs #223. A due Vorsorge item could only be done, deleted or ignored;
Telegram's postpone moved the date with no trace. Both decisions are
first-class now, and both are honest:
- POST /{id}/skip (no body): the interval restarts from the skip instant
through the recurrence engine, lastSkippedAt is stamped, skipCount
increments, any snooze clears. lastSatisfiedAt is NEVER touched — done
and skipped stay distinguishable forever, enforced in the primitive and
pinned by tests.
- POST /{id}/snooze ({until: YYYY-MM-DD}): the server resolves the day to
the notifyHour in the profile timezone and moves snoozedUntil and
nextDueAt to the same instant, so every due-state consumer follows
without knowing snooze exists. At least tomorrow, at most five years.
- GET /{id}/history: the new append-only completion ledger
(MeasurementReminderEvent), one row per satisfy from every engine path
and per skip, onTime derived at write time against the due instant that
was current when the event landed.
Two anchor fixes close the backdated-event gaps: the auto-resolve floor is
now the later of last satisfy and last skip (an old reading synced late no
longer resolves the cycle the user just skipped), and a backdated real
result re-anchors the next due at the later of its own instant and the
skip decision.
Screenings stay skippable and snoozable — the satisfy-side 409 guards
claimed fulfilment; a skip claims the opposite. Appointment reminders 404
on all three routes, in the lookup, like every by-id sibling. /checkups
gains the postpone sheet (quick chips, date field, the skip zone with its
own confirm) in both view branches, with muted meta lines and no card
colour change. The MCP preventive-care tool carries the resolved fields;
the OpenAPI contract publishes all three paths and the widened DTO.