Add NetUP IPTV integration module (TV Welcome settings page)

- DB: migrations/002_netup.sql — netup_settings + netup_room_mapping tables
- Backend: routes/netup.ts — GET/PATCH settings, POST test, GET/POST room
  mappings, POST send TV message; notifyNetupCheckin/Checkout helpers
- Backend: bookings PATCH — fire-and-forget NetUP check-in/out on status change
- Frontend: TvWelcomePage — connection settings tab + room mapping tab
- Frontend: sidebarItem added to tv-welcome module (shows in sidebar menu)
- Frontend: ModulesPage Settings button navigates to /tv-welcome
- Frontend: BookingModal — "Сообщение гостю на TV" panel for existing bookings

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

backend/src/routes/bookings.ts

@@ -1,5 +1,6 @@
 import { FastifyPluginAsync } from 'fastify'
 import { db } from '../db'
+import { notifyNetupCheckin, notifyNetupCheckout } from './netup'
 
 type SlugParam   = { Params: { slug: string } }
 type SlugIdParam = { Params: { slug: string; id: string } }
@@ -167,7 +168,16 @@ const bookings: FastifyPluginAsync = async (fastify) => {
         values,
       )
       if (!rows[0]) return reply.code(404).send({ error: 'Booking not found' })
-      return rows[0]
+
+      // NetUP IPTV: fire-and-forget при заселении/выселении
+      const updated = rows[0]
+      if (request.body.status === 'checked_in') {
+        notifyNetupCheckin(hotelId, updated.room_id, updated.guest_name, updated.id).catch(() => {})
+      } else if (request.body.status === 'checked_out') {
+        notifyNetupCheckout(hotelId, updated.room_id).catch(() => {})
+      }
+
+      return updated
     },
   )