R4 gap fixed: TimeGroup now accepts scheduledDayChange + actualDayChange props
separately so each time type renders its own independent badge. FlightCard
updated to pass them independently (scheduled vs actual/estimated); expanded
row time block also now shows per-type badges.
R5 tooltip fixed: dayChangeBadgeTooltip() uses string-based date extraction
(no TZ reprojection via new Date()) — avoids viewer-TZ shift for SSR and
cross-TZ correctness. Returns "День" for ±1, DD.MM.YYYY for ±2+.
New shared helper dayChange.ts exports computeDayChange(), dayChangeBadgeTooltip(),
formatDayChangeBadge(). 27 unit tests cover +0/+1/+2/-1/-2, null, malformed
input, month/year boundaries, and per-time-type independence (R4).
R1–R3, R6 confirmed correct (API supplies dayChange per ITimesSet; badge
adjacent to time; hidden when 0). R8 (mobile tooltip suppression) deferred.
gnezim
63fc6060f2