i18n: translate sub.refused.unpaidWindow reason (sq + en)

The exit-gate refusal for an unpaid out-of-window subscriber charge rendered as
the raw code `reason.sub.refused.unpaidWindow` — the code + English fallback
existed in @parking/shared but the reason.* catalogs had no entry. Add it to
both catalogs with the {{amount}}/{{currency}} params the gate passes.

EN: "Exit refused — out-of-window charge unpaid ({{amount}} {{currency}}); pay at the booth"
SQ: "Dalja u refuzua — detyrim jashtë orarit i papaguar ({{amount}} {{currency}}); paguaje në kabinë"

Build+lint 12/12 (i18n parity).

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

apps/web/src/lib/i18n/en.ts

@@ -215,6 +215,7 @@ export const en: Catalog = {
     "sub.refused.outOfWindow": "Subscription refused — {{status}}/out-of-window",
     "sub.refused.noSession": "Subscription exit with no open session (already out / never entered)",
     "sub.refused.atCapacity": "Subscription refused — at capacity ({{inUse}}/{{max}} cars in)",
+    "sub.refused.unpaidWindow": "Exit refused — out-of-window charge unpaid ({{amount}} {{currency}}); pay at the booth",
   },
   tariff: {
     title: "Tariff",

apps/web/src/lib/i18n/sq.ts

@@ -218,6 +218,7 @@ export const sq = {
     "sub.refused.outOfWindow": "Abonimi u refuzua — {{status}}/jashtë afatit",
     "sub.refused.noSession": "Dalje me abonim pa sesion të hapur (tashmë jashtë / nuk ka hyrë kurrë)",
     "sub.refused.atCapacity": "Abonimi u refuzua — në kapacitet ({{inUse}}/{{max}} makina brenda)",
+    "sub.refused.unpaidWindow": "Dalja u refuzua — detyrim jashtë orarit i papaguar ({{amount}} {{currency}}); paguaje në kabinë",
   },
   tariff: {
     title: "Tarifa",