rongta-printer still named the cashino driver id (→ escpos + migration
0023 note); tariff-time-tiers listed the composer price preview as
deferred (→ delivered by the lab fee breakdown); tariff.md lab section
gained the breakdown + composer increment-guard paragraph; i18n.md now
records the "25 Qer 14:30" date standard + never-toLocaleString-for-
dates rule; fleet-deployment-komodo gained the park-lab stack + tier
table (the park-lab addition had also slipped the log — both fixed).
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
A windowed card can now charge ONE total for any presence in its window —
the real night rate ("20:00–07:00 = 400, leave earlier and it's still
400"), which the per-increment flatMinor could not express (park-buzi's
"night 400" card billed 400/HOUR). Engine charges once per contiguous run
of increments the card wins, tracked across rolling-day segments so a
night crossing the 24h boundary charges once; out-of-window increments
price by the base card as usual.
Operator decisions (2026-07-05): per-occurrence repeat (two nights = two
charges), any-touch-pays-full, windowed cards only (a base "price per
day" is a 1-row up-to table). Validator: mutually exclusive with
flat/blocks/steps, no per-card cap, forbidden on the defaultCard.
flatMinor docs clarified as PER INCREMENT. 6 new engine tests.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
Bring the legacy ParkSQL2017 pricing BREADTH onto our engine while keeping
integer-minor-unit money + immutable signed versions (rejecting legacy's
float money / mutable rows). TariffStructure becomes a discriminated union:
V1 = the original bare ladder (UNCHANGED, verbatim algorithm, golden-
regression-tested against the live version); V2 = {version:2, tz, shared
knobs, defaultCard, windowedCards[]} where each card is flat OR a block
ladder and may be scoped by wall-clock hour window / day-of-week / date
range / vehicle category.
computeFeeV2 prices by stepping one increment at a time, advancing the
ladder by ELAPSED minutes (continuous) while selecting the active card by
WALL-CLOCK time in the version's FROZEN tz. Decisions: tz is a per-site
setting (site_config.timezone, default Europe/Tirane) stamped server-side
into each version on publish — never the host clock (reproducibility);
default-card cap governs a mixed day; precedence = specificity
(date>dow>hour) -> priority -> name (total, order-independent), validation
rejects ambiguous ties; category = a card FIELD, frozen in the signed
vehicle_entry payload (site_config.default_vehicle_category default), read
at both pricing call-sites.
Composer: default card front-and-centre (flat/ladder toggle), tiers under
an "Advanced" disclosure; emits BARE V1 when no tiers (back-compat). DB:
migrations 0005 (timezone) + 0006 (default_vehicle_category). Stood up
vitest in @parking/shared (was zero tests on the ledger-feeding fee fn);
36 tests incl. golden V1 regression, happy-hour/overnight/dow/flat/category/
cap edges, precedence shuffle-invariance, Europe/Tirane DST determinism,
validation matrix — all green. No event-chain change.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
Ingest the predecessor SQL Server schema (raw + source summary) and file design
pages for time-of-day/seasonal tariff tiers and merchant validation/postpaid
sponsorship. Cross-link tariff.md and validation-discounts.md. No code.
julian