A stepped ("up-to") default card prices the whole stay as one total, so the V2
engine short-circuits to steppedFee and NEVER consults windowed cards — any
time/seasonal tiers would silently never fire. Found live: an active tariff had a
stepped base plus weekday-night + weekend tiers, and every 3h stay priced 600 ALL
regardless of hour/day because the tiers were dead.
- validateTariffV2 now rejects a stepped defaultCard combined with windowedCards,
with an actionable message (switch the base to ladder/flat, or remove the tiers).
- Composer shows an inline red warning the moment base mode is stepped and tiers
exist; publishing is blocked server-side regardless.
- ApiError now carries the server's problems[], so the publish error surfaces the
SPECIFIC reason instead of a generic "invalid tariff structure".
- 2 new validation tests (55 pass).
Wiki: tariff, log.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
julian
9a1feeeb20