fix: minibar consumptions not showing in deposit release form

Wrong column names in SQL query: price_at_time→price_per_unit,
created_at→recorded_at. Also fixed type mismatch priceAtTime→pricePerUnit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/api.ts

@@ -773,7 +773,7 @@ export const api = {
       req<void>('DELETE', `/api/hotels/${slug}/bookings/${bookingId}/deposit`),
 
     getMinibarForBooking: (slug: string, bookingId: string) =>
-      req<{ items: Array<{ itemName: string; quantity: number; priceAtTime: number; lineTotal: number }>; total: number }>(
+      req<{ items: Array<{ itemName: string; quantity: number; pricePerUnit: number; lineTotal: number }>; total: number }>(
         'GET', `/api/hotels/${slug}/bookings/${bookingId}/deposit/minibar`,
       ),