Two halves of one anti-fraud design.
(A) Operator-issued entry — when the physical entry button is broken, an
operator can issue an entry ticket so a real car isn't blocked out of the lot.
This hands the operator-adversary a mint, so it is:
- PRESENCE-GATED like the physical button: a real car must be present (radar/
loop AND camera busy). Enforced BOTH sides — the server re-checks current
presence so a direct POST can't bypass a disabled button; no presence loop
=> feature unavailable; a no-presence attempt signs an anomaly.
- FLAGGED: vehicle_entry source=manual + operatorInitiated + operator, PLUS a
companion entry.operatorIssued anomaly (the adversary path always leaves a
red-flag row).
- capacity-OVERRIDE allowed but stamped lotFull (a broken button mustn't trap
a legit car).
New session:create permission (migration 0019 -> operator role, admin-
revocable), POST /api/entry/issue (open-shift gated), EntryFlow.
issueForOperator; the fraud-critical print->sign->open->snapshot sequence is
factored into one shared #issueTicket (button + operator). UI: the entry
BarrierLight becomes a clickable issue-control when presence+permission+shift
meet (confirm -> issue).
(B) Exit plate-swap reconciliation — defends the ticket-swap fraud the mint
enables (paid car let out on a fresh $0 ticket, original ticket lingers
"inside", occupancy drifts up by phantom cars). The plate is the invariant:
ExitFlow.#reconcilePlateAtExit compares the exiting plate against all OPEN
sessions' entry plates, EXACT + HIGH-CONFIDENCE only (>=0.85; a fuzzy read never
gates — ANPR is advisory). On a match under a DIFFERENT ticket:
- BOOTH path: returns swap_suspected + signs exit.plateSwapSuspected; the
pay/exit modal shows a red warning + "Override & release" (override signs an
attributed exit.plateSwapOverride). Flag+override, never a silent hard block
(exit fails-open; a plate is never the sole gate).
- READER path (no operator): log-only anomaly + fail-open.
Extended BoothExitResult + /api/exit (override); boothExit client returns a
structured swap result.
Verified: full monorepo build/lint/test green (229 server tests incl. 4 new:
hold-on-swap, override-releases-with-attribution, low-confidence-no-warning,
own-plate-no-warning). New wiki: operator-issued-entry.md +
plate-reconciliation.md; cross-linked from entry-exit-points, capacity-
occupancy, index. Preserves "a plate never OPENS a barrier alone — and now never
TRAPS a car alone either."
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
Three subscriber enhancements driven by real scenarios (migration 0011, all
additive columns — backward-compatible).
1. QUANTITY. One subscription covers N cars (a family pays once for two). Sale
amount = span price × quantity; maxConcurrent defaults to the quantity so all
N cars can be inside. Quantity rides in the payment payload.
2. PLAN TIMEFRAMES → TARIFF BRIDGE. A plan may restrict WHEN a subscriber may
park (e.g. weekday 20:00→08:00, weekend all-day). A scan outside the window is
NOT refused — the out-of-window minutes are charged at the normal TRANSIENT
tariff (the subscriber is a transient for that time):
- early entry: arrival → window-open, DEFERRED (signed as windowOwedMinor on
the vehicle_entry payload), collected at exit;
- late exit: window-close → departure, and exit is GATED
(sub.refused.unpaidWindow) until paid at the booth.
Pure, tz-aware outOfWindowGap in @parking/shared (12 unit tests); pricing
reuses computeFee + the active tariff version
(apps/server/src/subscription-window.ts). The exit refusal is a host-ONLINE
business gate — the fail-open rule still governs the offline path.
3. RESERVED SPOTS. Site toggle reserve_subscriber_spots: occupancy holds
max(0, quantity − itsCarsInside) per active subscription, so transients see
"full" sooner; effectiveFree = capacity − count − reserved. Subscribers are
never gated by full.
UI: quantity field + ×N quote (SubscriptionManager); timeframes editor
(SubscriptionPlansManager); reserve checkbox (SiteSettings); booth pay modal
shows an "OUT-OF-WINDOW" charge and takes payment to clear the exit gate.
Verified on a copy of the live DB: qty 2 = 2× price; a night-plan 19:30 entry →
30min/15,000 ALL owed, stamped + paid → gate clears, chain verifies; the reserve
toggle holds a qty-2 sub's 2 spots. Build+lint 12/12; 80 shared tests pass.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
The "permit/lejet" feature is really a subscription. Full rename of the
mutable master data, plus a recurring monthly price.
- DB (migration 0004, data-preserving ALTER RENAME): permits→subscriptions,
permit_credentials/_plates→subscription_*, sessions.permit_id→subscription_id.
- Pricing: per-subscription priceMinor + period(monthly) + currency, with a
site default (site_config.subscription_monthly_price_minor) pre-filling the form.
- Server: subscription-flow.ts (SubscriptionFlow), routes/subscriptions.ts
(/api/subscriptions). Web: SubscriptionManager, route, i18n (sq Abonimet/en).
- The signed ledger `permitId` payload is intentionally kept — immutable
hash-chained history; renaming it would break verification of past events.
Deferred (wiki notes): fee collection into the ledger/shift (a shift-attributed
payment), LPR/ANPR plate source, time-of-day access windows (overnight subscriber).
Also carries the device-footer UI surface (api DeviceStatus, router mount,
i18n devices) due to shared-file overlap with the preceding footer commit.
Verified end-to-end on a fresh DB and migration on a live-DB copy (sessions
preserved). Live DB migrated. Full monorepo builds clean.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
Occupancy is a fold over the signed ledger (entries minus exits per identity);
getOccupancy returns {count, capacity, free, full}. Capacity is a single-row
site_config table (admin-set; null = uncapped; migration 0001, additive).
FULL gate lives in the transient entry flow: when full, refuse (no ticket, no
vehicle_entry, no open) and sign an anomaly. Permit entry is NOT gated --
subscribers are admitted past transient-full (their own maxConcurrent still
applies), so occupancy can read over capacity by design (reserve-for-permits).
Routes: GET /api/occupancy + GET /api/site-config (any role), PUT
/api/site-config (admin; non-negative int or null). Web SiteSettings: live
occupancy + FULL badge (everyone), capacity editor (admin).
Verified: fill to cap -> 3rd transient refused; permit admitted past full; exit
frees a slot; RBAC (operator can't set, -5 -> 400); verifyChain ok. Physical
FULL-sign relay output deferred.
Capture that refusing at capacity is the default, not absolute: an operator
may opt into valet over-capacity (customer hands over keys, operator stacks
the car into custody). Manned-only, new custody/session shape. Deferred;
not built into the entry flow. Made capacity-occupancy's FULL gate a soft
policy knob.
julian