Add TravelLine pull integration for NetUP: capture endpoint + tl_token

- New /travelline route: accepts all NetUP polls, logs them to in-memory
  ring buffer (GET /travelline/_log to inspect), responds with active
  reservations in a generic PMS format
- Migration 007: adds tl_token column to netup_settings
- PATCH netup/settings now saves tl_token; GET returns it
- TvWelcomePage: new TravelLine section with read-only API URL + copy
  button and token input field

Setup in NetUP: Integration type = TravelLine,
API URL = https://api.hotelsync.ru/travelline, Token = <tl_token>

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

src/pages/TvWelcomePage.tsx

@@ -1,5 +1,5 @@
 import { useState, useEffect } from 'react'
-import { Tv2, Plug, Map, CheckCircle2, XCircle, Loader2, Save, Eye, EyeOff } from 'lucide-react'
+import { Tv2, Plug, Map, CheckCircle2, XCircle, Loader2, Save, Eye, EyeOff, Copy, Link2 } from 'lucide-react'
 import { cn } from '../lib/utils'
 import { api } from '../lib/api'
 import { useAuth } from '../contexts/AuthContext'
@@ -30,7 +30,9 @@ export function TvWelcomePage() {
   const [password, setPassword]     = useState('')
   const [language, setLanguage]     = useState('ru_RU')
   const [enabled, setEnabled]       = useState(true)
+  const [tlToken, setTlToken]       = useState('')
   const [settingsLoaded, setSettingsLoaded] = useState(false)
+  const [copied, setCopied]         = useState(false)
 
   // Room mappings
   const [rooms, setRooms] = useState<{ id: string; number: string; type: string; netupRoomNumber: string }[]>([])
@@ -46,6 +48,7 @@ export function TvWelcomePage() {
         setUsername(s.username)
         setLanguage(s.defaultLanguage)
         setEnabled(s.enabled)
+        setTlToken(s.tlToken ?? '')
         setSettingsLoaded(true)
       })
       .catch(() => setSettingsLoaded(true))
@@ -69,6 +72,7 @@ export function TvWelcomePage() {
         password: password || undefined,
         default_language: language,
         enabled,
+        tl_token: tlToken,
       })
       setPassword('')
     } finally {
@@ -86,6 +90,7 @@ export function TvWelcomePage() {
         password: password || undefined,
         default_language: language,
         enabled,
+        tl_token: tlToken,
       })
       const res = await api.netup.testConnection(slug)
       setTestResult({ ok: true, msg: res.message })
@@ -244,6 +249,65 @@ export function TvWelcomePage() {
             </p>
           </div>
 
+          <hr className="border-slate-100 dark:border-slate-700" />
+
+          {/* TravelLine / Pull integration */}
+          <div className="space-y-3">
+            <div>
+              <p className="font-medium text-slate-900 dark:text-slate-100 text-sm">
+                Интеграция через TravelLine (pull-режим)
+              </p>
+              <p className="text-xs text-slate-500 dark:text-slate-400 mt-0.5">
+                Альтернативный метод: NetUP сам опрашивает наш сервер. Настройте в NetUP тип интеграции «TravelLine» и укажите адрес ниже.
+              </p>
+            </div>
+
+            {/* API URL (read-only) */}
+            <div className="space-y-1.5">
+              <label className="text-sm font-medium text-slate-700 dark:text-slate-300 flex items-center gap-1.5">
+                <Link2 size={13} />
+                API URL для NetUP
+              </label>
+              <div className="flex gap-2">
+                <input
+                  type="text"
+                  readOnly
+                  value="https://api.hotelsync.ru/travelline"
+                  className="input w-full font-mono text-xs bg-slate-50 dark:bg-slate-700/50 text-slate-500 dark:text-slate-400"
+                />
+                <button
+                  type="button"
+                  onClick={() => {
+                    navigator.clipboard.writeText('https://api.hotelsync.ru/travelline')
+                    setCopied(true)
+                    setTimeout(() => setCopied(false), 2000)
+                  }}
+                  className="btn-secondary px-3 shrink-0 flex items-center gap-1.5"
+                >
+                  {copied ? <CheckCircle2 size={13} className="text-emerald-500" /> : <Copy size={13} />}
+                  {copied ? 'Скопировано' : 'Копировать'}
+                </button>
+              </div>
+            </div>
+
+            {/* Token */}
+            <div className="space-y-1.5">
+              <label className="text-sm font-medium text-slate-700 dark:text-slate-300">
+                Токен авторизации
+              </label>
+              <input
+                type="text"
+                value={tlToken}
+                onChange={e => setTlToken(e.target.value)}
+                placeholder="Придумайте любой секретный токен"
+                className="input w-full font-mono text-sm"
+              />
+              <p className="text-xs text-slate-400 dark:text-slate-500">
+                Введите этот же токен в поле «Токен» настроек TravelLine в NetUP
+              </p>
+            </div>
+          </div>
+
           {/* Test result */}
           {testResult && (
             <div className={cn(