A daily oral with multiple timesOfDay and a wide schedule window had its
dose-slot capture zones overlap, so a second same-day dose could snap onto
an already-actioned slot and be dropped by the no-downgrade guard — the
intake never landed as its own row. A twice-daily 08:00 / 20:00 schedule
with an 08:00-22:00 window yielded a +/-7h half-span tolerance that
exceeded half the 12h inter-slot gap, so the evening write collapsed onto
the morning slot. Weekly and single-dose schedules (one slot/day) were
immune.
snapToleranceMs now caps the tolerance at half the minimum gap between
adjacent sorted timesOfDay entries (the midnight wrap counted as one of
those gaps) whenever a schedule has more than one slot, keeping the two
nearest slots' capture zones disjoint. Single-slot schedules keep the
full half-window-span behaviour, and the >=1-minute drift floor is
preserved, so weekly injectables and once-daily orals are unchanged.
Adds unit coverage for the wide-window two-dose case (distinct slots, no
collapse) plus an explicit weekly single-dose regression, and an
integration test driving both same-day writes through the DB-backed slot
resolver and canonical-slot upsert to assert two distinct live rows.
Marc-André Bombeck
793602f464