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/bookings/BookingModal.tsx

@@ -33,6 +33,10 @@ interface BookingModalProps {
   draft: DraftBooking
   /** categoryId → date (YYYY-MM-DD) → price; used to price bookings by availability rates */
   priceOverrides?: Record<string, Record<string, number>>
+  /** categoryId → date (YYYY-MM-DD) → hourlyPrice; per-date hourly rate overrides */
+  hourlyPriceOverrides?: Record<string, Record<string, number>>
+  /** categoryId → { nightlyBase, hourlyBase } from category settings */
+  categoryBasePrices?: Record<string, { nightlyBase: number; hourlyBase: number }>
   rooms: Room[]
   bookings?: Booking[]
   onClose: () => void
@@ -96,7 +100,7 @@ function getRoomCategories(rooms: Room[], bookings: Booking[], checkIn: string,
   })
 }
 
-export function BookingModal({ open, draft, rooms, bookings = [], onClose, onSave, existing, rentalObjects, rentalBookings = [], onRentalSave, slug, priceOverrides }: BookingModalProps) {
+export function BookingModal({ open, draft, rooms, bookings = [], onClose, onSave, existing, rentalObjects, rentalBookings = [], onRentalSave, slug, priceOverrides, hourlyPriceOverrides, categoryBasePrices }: BookingModalProps) {
   const { statuses } = useModules()
   const { user } = useAuth()
   const tvEnabled = statuses['tv-welcome'] === 'active'
@@ -331,14 +335,15 @@ export function BookingModal({ open, draft, rooms, bookings = [], onClose, onSav
     : 0
 
   const hourlyHours = Math.max(0, endHour - startHour)
-  // Calculate room cost: sum per-night prices from availability overrides, fall back to baseRate
+  // Calculate room cost: priority = availability override → category base price → room base rate
   const nightCount = Math.floor(nights)
   const roomNightlyTotal = (() => {
     if (!room || !form.checkIn || nightCount <= 0) return 0
     const catId = room.categoryId
     const catOverrides = catId ? priceOverrides?.[catId] : undefined
+    const catBase = catId ? categoryBasePrices?.[catId]?.nightlyBase : undefined
     // room.baseRate is NUMERIC in DB — pg returns it as a string; always coerce
-    const fallback = Number(room.baseRate) || 0
+    const fallback = (catBase && catBase > 0) ? catBase : (Number(room.baseRate) || 0)
     if (!catOverrides) return fallback * nightCount
     let sum = 0
     for (let i = 0; i < nightCount; i++) {
@@ -348,8 +353,17 @@ export function BookingModal({ open, draft, rooms, bookings = [], onClose, onSav
     }
     return sum
   })()
+  const hourlyRateForDate = (() => {
+    if (!room?.allowHourly) return 0
+    const catId = room.categoryId
+    const hourlyOverride = catId ? hourlyPriceOverrides?.[catId]?.[hourlyDate] : undefined
+    if (hourlyOverride && hourlyOverride > 0) return hourlyOverride
+    const catHourlyBase = catId ? categoryBasePrices?.[catId]?.hourlyBase : undefined
+    if (catHourlyBase && catHourlyBase > 0) return catHourlyBase
+    return room.hourlyRate ?? 0
+  })()
   const roomBaseTotal = isHourly && room?.allowHourly
-    ? (room.hourlyRate ?? 0) * hourlyHours
+    ? hourlyRateForDate * hourlyHours
     : roomNightlyTotal
   const discountAmount = selectedDiscount
     ? selectedDiscount.valueType === 'percent'