Add centralized amenities directory and hourly booking example

- AmenitiesContext: shared amenities list with add/edit/delete, available app-wide
- RoomsPage: collapsible Справочник удобств section (add/rename/delete)
- RoomModal + RoomCategoriesPage: use amenities from context, no hardcoded lists
- RoomCategoriesPage: removed custom amenity input (use справочник instead)
- mockData: room 103 now has allowHourly=true, added sample hourly booking (today, 10-13ч)

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

src/components/rooms/RoomModal.tsx

@@ -3,11 +3,7 @@ import { Modal } from '../ui/Modal'
 import { cn } from '../../lib/utils'
 import type { Room, RoomStatus, HousekeepingStatus, BedType } from '../../types'
 import { ImagePlus, X as XIcon, ChevronLeft, ChevronRight } from 'lucide-react'
-
-const AMENITY_LIST = [
-  'Wi-Fi', 'TV', 'AC', 'Mini-bar', 'Bathrobe', 'Jacuzzi',
-  'Panoramic view', 'Kitchen', 'Washing machine', 'Butler', 'Terrace',
-]
+import { useAmenities } from '../../contexts/AmenitiesContext'
 
 const ROOM_TYPES = ['Стандарт', 'Делюкс', 'Полулюкс', 'Люкс', 'Пентхаус', 'Апартаменты', 'Другой']
 
@@ -65,6 +61,7 @@ export function RoomModal({ open, room, categories = [], onClose, onSave }: Room
     description:        room?.description        ?? '',
   })
 
+  const { amenities: allAmenities } = useAmenities()
   const [amenities, setAmenities] = useState<string[]>(room?.amenities ?? ['Wi-Fi', 'TV', 'AC'])
   const [photos, setPhotos]       = useState<string[]>(room?.photos ?? [])
   const [photoIdx, setPhotoIdx]   = useState(0)
@@ -265,7 +262,7 @@ export function RoomModal({ open, room, categories = [], onClose, onSave }: Room
           <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-2">Удобства</label>
             <div className="flex flex-wrap gap-2">
-              {AMENITY_LIST.map(a => {
+              {allAmenities.map(a => {
                 const selected = amenities.includes(a)
                 return (
                   <button