Merge claude/1

The 'already mounted?' guard checked #backup-section, but the per-app Backups
tab also defines that id — detect the prior mount via the pane's own
.backup-layout instead so the check is correct, not coincidental.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

containers/libreportal/frontend/components/apps/overview/js/overview-manager.js

@@ -359,7 +359,9 @@ class OverviewManager {
   // configuration sections (its sidebar restyled as a nested tab strip). On a
   // revisit we refresh rather than re-mount, to keep its sub-tab + expand state.
   mountBackupCenter(pane) {
-    if (document.getElementById('backup-section') && window.overviewBackupPage) {
+    // Detect a prior mount by the embedded fragment in THIS pane — not by
+    // #backup-section, which the per-app Backups tab also defines.
+    if (pane.querySelector('.backup-layout') && window.overviewBackupPage) {
       try { window.overviewBackupPage.refreshAll().then(() => window.overviewBackupPage.render()).catch(() => {}); } catch (_) {}
       return;
     }