Add Diagnostics tab to TV Welcome: view NetUP poll requests in UI

- Rename pull endpoint /travelline → /netup-pms (cleaner branding)
- Add GET/DELETE /api/hotels/:slug/netup/log endpoints
- TvWelcomePage: new 'Диагностика' tab shows incoming NetUP requests
  with method, URL, timestamp list + detail panel (headers, query, body)
- Remove 'TravelLine' wording from UI, replace with 'Pull-интеграция'

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

backend/src/routes/netup.ts

@@ -1,5 +1,6 @@
 import type { FastifyPluginAsync } from 'fastify'
 import { db } from '../db'
+import { captured } from './travelline'
 
 type SlugParam   = { Params: { slug: string } }
 type SlugIdParam = { Params: { slug: string; id: string } }
@@ -237,8 +238,32 @@ const netup: FastifyPluginAsync = async (fastify) => {
     },
   )
 
-  // ── Внутренний хелпер: вызывается из bookings route при смене статуса ───
-  // Экспортируем для использования в bookings.ts
+  // ── GET /api/hotels/:slug/netup/log — просмотр запросов от NetUP ──────────
+  fastify.get<SlugParam>(
+    '/api/hotels/:slug/netup/log',
+    { onRequest: [fastify.authenticate] },
+    async (request, reply) => {
+      const { slug } = request.params
+      if (!canAccess(request.user.hotelSlug, request.user.role, slug)) {
+        return reply.code(403).send({ error: 'Forbidden' })
+      }
+      return { count: captured.length, requests: [...captured].reverse() }
+    },
+  )
+
+  // ── DELETE /api/hotels/:slug/netup/log — очистить лог ────────────────────
+  fastify.delete<SlugParam>(
+    '/api/hotels/:slug/netup/log',
+    { onRequest: [fastify.authenticate] },
+    async (request, reply) => {
+      const { slug } = request.params
+      if (!canAccess(request.user.hotelSlug, request.user.role, slug)) {
+        return reply.code(403).send({ error: 'Forbidden' })
+      }
+      captured.length = 0
+      return { ok: true }
+    },
+  )
 }
 
 // ── Отдельная функция для check-in/check-out из bookings.ts ──────────────