feat(booth): cancel wrongly-printed ticket (signed void) + refused-vs-anomaly display; fix CI uv

Cancel a misprinted/test/wrong-vehicle ticket via a SIGNED `void` event — the
vehicle_entry is never edited/deleted (append-only). VoidFlow appends void{
voidedEntryRef, voidReason, operator, reasonCode:"void.ticketCancelled" }; route
POST /api/tickets/void gated event:void + open shift; reason REQUIRED. Refuses a
subscription / already-exited / already-voided / paid ticket (refund out of scope).
The void folds the session CLOSED everywhere it's counted — occupancy (count +
reserved spots), pay-station (lookup/activeSessions), exit-flow (#sessionFor), and
reports (excluded from entries) — so a voided car stops occupying a spot, can't be
paid/exited, and doesn't inflate "cars entered". No barrier action. Booth UI: a
"Cancel ticket" action in the pay/exit lookup modal (transient + unpaid + open;
gated on event:void) with a preset-or-free reason prompt.

Reclassify the Live feed: refused-action events (exitRefused/entryRefused/
permitRefused — e.g. a double card-scan, at-capacity subscriber, exit on a closed
session) are benign warnings, not red anomalies. event-detail.tsx now shows them as
amber REFUZUAR/REFUSED, reserving red ANOMALI for genuine red-flags. Display-only —
no ledger change, so historical events reclassify too.

CI: install uv + sync vision deps before the Turbo run. @parking/vision's lint/
typecheck/test shell to `uv run …`, but CI set up only Node+pnpm, so `uv run ruff`
failed ("uv not found") and broke the whole Turbo run. The Python checks pass once
uv provisions the toolchain.

- new: void-flow.ts (+ tests, 8) ; occupancy void-fold test
- shared: reason code void.ticketCancelled ; both web catalogs (sq/en parity)
- wiki: parking-session (ticket-void folds + guards, refused/anomaly split), log

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

apps/server/src/occupancy.ts

@@ -30,8 +30,11 @@ export function occupancyCount(db: Db): number {
     .all();
   const balance = new Map<string, number>();
   for (const r of rows) {
+    // A `void` (cancelled ticket) closes the session like an exit — the car never entered
+    // (misprint), so it must not count inside. See void-flow.ts.
     if (r.type === "vehicle_entry") balance.set(r.identity ?? "", (balance.get(r.identity ?? "") ?? 0) + 1);
-    else if (r.type === "vehicle_exit") balance.set(r.identity ?? "", (balance.get(r.identity ?? "") ?? 0) - 1);
+    else if (r.type === "vehicle_exit" || r.type === "void")
+      balance.set(r.identity ?? "", (balance.get(r.identity ?? "") ?? 0) - 1);
   }
   let open = 0;
   for (const v of balance.values()) if (v > 0) open += 1;
@@ -68,7 +71,7 @@ export function reservedSubscriberSpots(db: Db): number {
       if (pl.permitId == null) continue; // transient
       net.set(id, (net.get(id) ?? 0) + 1);
       subOf.set(id, pl.permitId);
-    } else if (r.type === "vehicle_exit") {
+    } else if (r.type === "vehicle_exit" || r.type === "void") {
       if (net.has(id)) net.set(id, (net.get(id) ?? 0) - 1);
     }
   }