App v0.2.26 and gateway 0.1.20

Client: seek controls, Bazarr subtitle download and cast panel in the
player; MDBList ratings strip; episode and schedule detail pages; series
pace estimate; what's new panel; install-permission onboarding step;
synced per-profile preferences; Emby outage banner.

Gateway: rebuilt admin console (one fragment per page), preference
history and restore, merged Continue Watching, Emby health probe,
subtitle selection and Bazarr download, structured request logging with
per-request identity, and embedded build version.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

server/internal/api/install.html

@@ -92,6 +92,7 @@
       <ol>
         <li>Open this page on the TV using a browser or the Downloader app.</li>
         <li>Choose <strong>Download</strong>. If Android asks, allow that app to install unknown apps.</li>
+        <li>If Android asks, allow that app to access files - This is required for app updates.</li>
         <li>Open the downloaded APK and choose <strong>Install</strong>, then launch Memby and sign in.</li>
       </ol>
       {{if .Notes}}<p class="notes"><strong>Latest release:</strong> {{.Notes}}</p>{{end}}