Each hourly row now carries the N1 time-of-use tariff (øre/kWh × 10
to match the DKK/MWh unit of price_dkk) and the combined consumer
price (spot + tariff). Existing rows are backfilled in the migration
with a CASE expression mirroring tariffs/tariff-for-hour; new writes
compute it in the controller. API response exposes both fields.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
