feat: hourly pricing + category base prices in booking modal + availability grid

- Add hourly_price column to rate_overrides, base_price/allow_hourly/hourly_base_price to room_categories (migration 033)
- Update categories and rate-overrides backend routes to handle new fields
- AvailabilityPage: hourly/nightly mode toggle, period prices auto-applied to grid with 'П' indicator, confirmation dialog when overriding period prices
- BookingModal: nightly/hourly toggle at top, pricing hierarchy (override → category base → room rate)
- RoomCategoriesPage: base_price/allow_hourly/hourly_base_price fields in category form; inline rooms panel
- CalendarPage + BookingCalendar: pass hourlyPriceOverrides and categoryBasePrices down to BookingModal

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

src/components/calendar/BookingCalendar.tsx

@@ -44,6 +44,10 @@ interface BookingCalendarProps {
   wsConnected?: boolean
   /** categoryId → date (YYYY-MM-DD) → price */
   priceOverrides?: Record<string, Record<string, number>>
+  /** categoryId → date (YYYY-MM-DD) → hourly price */
+  hourlyPriceOverrides?: Record<string, Record<string, number>>
+  /** categoryId → { nightlyBase, hourlyBase } */
+  categoryBasePrices?: Record<string, { nightlyBase: number; hourlyBase: number }>
 }
 
 const CATEGORY_ORDER: Record<string, number> = {
@@ -67,7 +71,7 @@ function getRoomTypeColor(type: string): string {
   return map[type] ?? 'bg-slate-100 text-slate-600 dark:bg-slate-700 dark:text-slate-300'
 }
 
-export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBookingUpdate, onBookingBulkUpdate, onRoomUpdate, onMaintenanceTaskCreate, cleaningAssignees = {}, activeMaintenance = new Set(), fadingBookingIds, rentalObjects, rentalBookings, onRentalBookingCreate, locks = new Map(), onDraftStart, onDraftCancel, wsConnected, priceOverrides }: BookingCalendarProps) {
+export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBookingUpdate, onBookingBulkUpdate, onRoomUpdate, onMaintenanceTaskCreate, cleaningAssignees = {}, activeMaintenance = new Set(), fadingBookingIds, rentalObjects, rentalBookings, onRentalBookingCreate, locks = new Map(), onDraftStart, onDraftCancel, wsConnected, priceOverrides, hourlyPriceOverrides, categoryBasePrices }: BookingCalendarProps) {
   const [startDate, setStartDate] = useState(() => startOfDay(new Date()))
   const [visibleDays, setVisibleDays] = useState(DAYS_VISIBLE)
 
@@ -913,6 +917,8 @@ export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBook
           draft={bookingModalDraft}
           rooms={rooms}
           priceOverrides={priceOverrides}
+          hourlyPriceOverrides={hourlyPriceOverrides}
+          categoryBasePrices={categoryBasePrices}
           bookings={bookings}
           slug={slug}
           rentalObjects={rentalObjects}