controller v0.296.0: a backup run cut off by a power cut or restart is said on the backup pages (R-519); the whole-system backup text states today's measurement (R-518)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/web/templates/backups_apps.html

@@ -7,7 +7,9 @@
 </div>
 
 {{template "backups_flash" .}}
-{{template "restore_banner" .}}
+{{template "restore_banner" .}}{{if .Backup}}{{if .Backup.Interrupted}}
+<div class="alert alert-warning" data-interrupted-run="true">{{T "backups.interrupted_run"}}</div>
+{{end}}{{end}}
 {{- if .HollowCopyLines}}
 <div class="alert alert-error" style="margin-bottom:1.5rem">
     {{range .HollowCopyLines}}<div>{{.}}</div>{{end}}