controller: backups IA split — four sub-pages (Áttekintés /backups, Távoli mentés /backups/remote, Alkalmazások /backups/apps, Visszaállítás /backups/restore); sections MOVED verbatim (backups_split_move_check.py enforces vs df7ad37); shared data builder extracted; offbox restore-to-verify relocated to the restore page; flash redirects + tier-3 anchors + tier2 back-link retargeted

Claude-Session: https://claude.ai/code/session_01GzammAMzsJTgpQHqxwM2bC

controller/internal/web/templates/layout.html

@@ -56,7 +56,14 @@
                     <li><a href="/storage/network" class="{{if eq .Page "storage-network"}}active{{end}}">Hálózati tárhely</a></li>
                 </ul>
             </li>
-            <li><a href="/backups" class="{{if eq .Page "backups"}}active{{end}}"><svg class="ico"><use href="#i-shield"/></svg>Biztonsági mentés</a></li>
+            <li><a href="/backups" class="{{if or (eq .Page "backups") (eq .Page "backups-remote") (eq .Page "backups-apps") (eq .Page "backups-restore")}}active{{end}}"><svg class="ico"><use href="#i-shield"/></svg>Biztonsági mentés</a>
+                <ul class="nav-links nav-links-sub nav-links-nested">
+                    <li><a href="/backups" class="{{if eq .Page "backups"}}active{{end}}">Áttekintés</a></li>
+                    <li><a href="/backups/remote" class="{{if eq .Page "backups-remote"}}active{{end}}">Távoli mentés</a></li>
+                    <li><a href="/backups/apps" class="{{if eq .Page "backups-apps"}}active{{end}}">Alkalmazások</a></li>
+                    <li><a href="/backups/restore" class="{{if eq .Page "backups-restore"}}active{{end}}">Visszaállítás</a></li>
+                </ul>
+            </li>
             <li><a href="/monitoring" class="{{if eq .Page "monitoring"}}active{{end}}"><svg class="ico"><use href="#i-cpu"/></svg>Rendszermonitor</a></li>
             <li><a href="/debug" class="{{if eq .Page "debug"}}active{{end}}"><svg class="ico"><use href="#i-wrench"/></svg>Debug</a></li>
         </ul>