feat(transport): add bus, taxi, bicycle, ferry and other transport types (#1105)

Closes #718. Adds five new transport reservation types alongside the
existing flight/train/car/cruise: bus, taxi, bicycle, ferry and a generic
'transport_other' catch-all. The new types are treated as first-class
transports everywhere — the transport modal, day plan, route calculation,
map overlays, file grouping and the PDF export — and are translated across
all 20 locales.

A dedicated 'transport_other' value is used for the catch-all so existing
'other' bookings are not reclassified as transport.

shared/src/i18n/ko/reservations.ts

@@ -54,6 +54,11 @@ const reservations: TranslationStrings = {
   'reservations.type.event': '이벤트',
   'reservations.type.tour': '투어',
   'reservations.type.other': '기타',
+  'reservations.type.bus': '버스',
+  'reservations.type.ferry': '페리',
+  'reservations.type.bicycle': '자전거',
+  'reservations.type.taxi': '택시',
+  'reservations.type.transport_other': '기타',
   'reservations.confirm.delete': '예약 "{name}"을(를) 삭제할까요?',
   'reservations.confirm.deleteTitle': '예약을 삭제할까요?',
   'reservations.confirm.deleteBody': '"{name}"이(가) 영구 삭제됩니다.',