feat: enhance accessibility and testing with data-test attributes and improve error handling

apps/web/i18n/messages/de/bookings.json

@@ -0,0 +1,71 @@
+{
+  "nav": {
+    "bookings": "Buchungen",
+    "calendar": "Kalender",
+    "rooms": "Zimmer",
+    "guests": "Gäste",
+    "newBooking": "Neue Buchung"
+  },
+  "list": {
+    "title": "Buchungen",
+    "searchPlaceholder": "Gast oder Zimmer suchen...",
+    "newBooking": "Neue Buchung",
+    "noBookings": "Keine Buchungen vorhanden",
+    "createFirst": "Erstellen Sie Ihre erste Buchung.",
+    "activeBookings": "Aktive Buchungen",
+    "guest": "Gast",
+    "room": "Zimmer",
+    "checkIn": "Check-in",
+    "checkOut": "Check-out",
+    "nights": "Nächte",
+    "price": "Preis"
+  },
+  "detail": {
+    "notFound": "Buchung nicht gefunden",
+    "guestInfo": "Gastinformationen",
+    "roomInfo": "Zimmerinformationen",
+    "bookingDetails": "Buchungsdetails",
+    "extras": "Extras"
+  },
+  "form": {
+    "room": "Zimmer *",
+    "selectRoom": "— Zimmer wählen —",
+    "guest": "Gast",
+    "checkIn": "Check-in *",
+    "checkOut": "Check-out *",
+    "adults": "Erwachsene",
+    "children": "Kinder",
+    "notes": "Notizen",
+    "created": "Buchung erfolgreich erstellt",
+    "errorCreating": "Fehler beim Erstellen"
+  },
+  "status": {
+    "pending": "Ausstehend",
+    "confirmed": "Bestätigt",
+    "checked_in": "Eingecheckt",
+    "checked_out": "Ausgecheckt",
+    "cancelled": "Storniert",
+    "no_show": "Nicht erschienen"
+  },
+  "rooms": {
+    "title": "Zimmer",
+    "newRoom": "Neues Zimmer",
+    "noRooms": "Keine Zimmer vorhanden",
+    "name": "Name",
+    "type": "Typ",
+    "capacity": "Kapazität",
+    "price": "Preis/Nacht"
+  },
+  "guests": {
+    "title": "Gäste",
+    "newGuest": "Neuer Gast",
+    "noGuests": "Keine Gäste vorhanden",
+    "name": "Name",
+    "email": "E-Mail",
+    "phone": "Telefon",
+    "bookings": "Buchungen"
+  },
+  "calendar": {
+    "title": "Belegungskalender"
+  }
+}