Wide BookingModal (2-col), RoomModal, RU channels, migration module, all modules active

- BookingModal: 2-column layout (size=2xl/max-w-3xl), no scroll needed; hourly mode toggle for rooms with allowHourly=true
- RoomModal: full add/edit form with hourly rate toggle and amenities checkboxes; RoomsPage wired up
- Channel manager: Яндекс Путешествия, Островок, Суточно.ру, OneTwoTrip added; split into RU/International sections
- Migration module: 3-step wizard (source select → file upload → progress/results)
- All modules set to active by default (version bump to reset localStorage)
- BookingCalendar booking blocks: guest count badge (Xг), unpaid red dot indicator

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

src/App.tsx

@@ -18,6 +18,7 @@ import { BookingWidgetPage } from './pages/BookingWidgetPage'
 import { AvailabilityPage } from './pages/AvailabilityPage'
 import { FloorMapPage } from './pages/FloorMapPage'
 import { AdminDashboard } from './pages/AdminDashboard'
+import { MigrationPage } from './pages/MigrationPage'
 
 export default function App() {
   return (
@@ -45,6 +46,7 @@ export default function App() {
                 <Route path="/booking-widget"  element={<BookingWidgetPage />} />
                 <Route path="/availability"   element={<AvailabilityPage />} />
                 <Route path="/floor-map"     element={<FloorMapPage />} />
+                <Route path="/migration"     element={<MigrationPage />} />
               </Route>
 
               {/* Admin routes */}