feat(booth): payment receipt / exit voucher — transparency slip + CP852 fixes

After a completed payment the customer always gets a transparency record:
entry time, payment time, duration parked, amount + tender. One shared
ESC/POS renderer (renderReceipt + ReceiptData in @parking/devices), two
modes: VOUCHER = those figures PLUS the scannable Code128 barcode and an
emphasised walk-back-grace line, so the one slip both proves payment and
self-exits at a distant exit reader (replaced the old barcode-only voucher);
STANDALONE = detail-only, auto-printed at payment when no voucher is issued.
Figures fold from the SIGNED ledger (latest payment event); printed on the
booth printer (failover to dispenser). Best-effort: a printer fault never
blocks the exit that already happened — the modal shows a note and offers
"Reprint receipt".

Server: booth-print.ts printPaymentReceipt() + receiptFigures(); routes
POST /api/voucher (voucher) + new POST /api/receipt (standalone/reprint).
Both ESC/POS drivers gained printReceipt(). Web: BoothPayModal auto-prints
after a non-voucher payment + reprint button; api.ts printReceipt().

CP852 fixes found on a real printout: (1) uppercase Ë was mapped to 0xEB
(that's ű) — correct byte is 0xD3; (2) Intl.NumberFormat injects a NO-BREAK
SPACE (U+00A0/U+202F) that isn't in CP852 and printed as "?" — line() now
normalises it to a plain space ("1000 Lekë"); (3) grace line wrapped
mid-word — split into two short lines.

Full build green; both receipt modes render-verified; routes live.

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

apps/web/src/BoothPayModal.tsx

@@ -8,6 +8,7 @@ import {
   lookupSession,
   openShift,
   paySession,
+  printReceipt,
   printVoucher,
   reopenBarrier,
   type SessionLookup,
@@ -43,6 +44,7 @@ export function BoothPayModal({ identity, onClose }: { identity: string; onClose
   const [error, setError] = useState<string | null>(null);
   const [result, setResult] = useState<string | null>(null);
   const [openingShift, setOpeningShift] = useState(false);
+  const [reprinting, setReprinting] = useState(false);
 
   const s: SessionLookup | undefined = session.data;
   // Checkbox default comes from config the first time it loads; operator can toggle.
@@ -84,6 +86,19 @@ export function BoothPayModal({ identity, onClose }: { identity: string; onClose
     }
   }
 
+  async function handleReprintReceipt() {
+    setReprinting(true);
+    setError(null);
+    try {
+      const r = await printReceipt(identity);
+      setResult(t("pay.receiptReprinted", { printer: r.printedBy }));
+    } catch (e) {
+      setError((e as Error).message);
+    } finally {
+      setReprinting(false);
+    }
+  }
+
   async function handlePayAndExit() {
     if (!s) return;
     setError(null);
@@ -96,14 +111,25 @@ export function BoothPayModal({ identity, onClose }: { identity: string; onClose
       // 2. Voucher OR immediate exit.
       setPhase("finishing");
       if (voucher) {
+        // The voucher slip carries the payment detail + barcode + grace.
         const r = await printVoucher(identity);
         setResult(t("pay.voucherPrinted", { printer: r.printedBy }));
       } else {
         const r = await boothExit(identity);
+        // No voucher → auto-print a standalone payment receipt for transparency.
+        // Best-effort: a printer fault must NOT block the exit that already happened;
+        // the operator can reprint from the done screen.
+        let receiptNote = "";
+        try {
+          await printReceipt(identity);
+        } catch {
+          receiptNote = ` ${t("pay.receiptPrintFailed")}`;
+        }
         setResult(
-          r.opened
+          (r.opened
             ? t("pay.paidBarrierOpened")
-            : t("pay.paidExitRecorded", { reason: r.reason ?? t("booth.openManually") }),
+            : t("pay.paidExitRecorded", { reason: r.reason ?? t("booth.openManually") })) +
+            receiptNote,
         );
       }
       // Refresh the live views.
@@ -270,13 +296,27 @@ export function BoothPayModal({ identity, onClose }: { identity: string; onClose
                 {/* Actions */}
                 <div className="flex justify-end gap-2 pt-1">
                   {phase === "done" ? (
-                    <button
-                      type="button"
-                      onClick={onClose}
-                      className="rounded-term border border-term-amber px-4 py-1.5 text-[12px] uppercase tracking-wider text-term-amber"
-                    >
-                      {t("common.close")}
-                    </button>
+                    <>
+                      {/* Reprint the payment receipt (slip jammed / customer asks).
+                          Only for a charged session — a subscription has no payment. */}
+                      {!isSubscription && (
+                        <button
+                          type="button"
+                          onClick={handleReprintReceipt}
+                          disabled={reprinting}
+                          className="rounded-term border border-term-border px-3 py-1.5 text-[12px] uppercase tracking-wider text-term-muted hover:text-term-text disabled:opacity-50"
+                        >
+                          {reprinting ? t("pay.reprinting") : t("pay.reprintReceipt")}
+                        </button>
+                      )}
+                      <button
+                        type="button"
+                        onClick={onClose}
+                        className="rounded-term border border-term-amber px-4 py-1.5 text-[12px] uppercase tracking-wider text-term-amber"
+                      >
+                        {t("common.close")}
+                      </button>
+                    </>
                   ) : (
                     <>
                       <button