Fix: drag booking passes roomId to API; checked_out rooms available for new booking; remove time-based theme text

src/components/bookings/BookingModal.tsx

@@ -42,7 +42,7 @@ function isConflict(bookings: Booking[], roomId: string, checkIn: string, checkO
   return bookings.some(b =>
     b.roomId === roomId &&
     b.id !== excludeId &&
-    b.status !== 'cancelled' && b.status !== 'no_show' &&
+    b.status !== 'cancelled' && b.status !== 'no_show' && b.status !== 'checked_out' &&
     b.checkIn < checkOut && b.checkOut > checkIn,
   )
 }