v0.27.2 — copyable error popups, Tier2 hub reporting, memory bar fixes, new labels

- Replace native alert() with custom showAlert() modal (text selectable)
- Manual Tier2 backup now pushes infra backup to Hub
- CommittedMemory() excludes stopped/exited apps
- Pre-start memory check blocks start if insufficient RAM
- Add hungarian_ui metadata field + "Magyar felület" badge
- Add "USB" badge on storage cards in settings page

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

controller/internal/web/templates/settings.html

@@ -222,6 +222,7 @@ function pollUntilBack() {
                     {{else}}
                     {{if .IsDefault}}<span class="badge state-green">Alapértelmezett</span>{{end}}
                     {{if .Schedulable}}<span class="badge" style="background:rgba(0,136,204,0.15);color:var(--accent-light)">Aktív</span>{{else}}<span class="badge state-gray">Inaktív</span>{{end}}
+                    {{if .IsUSB}}<span class="badge" style="background:rgba(255,165,0,0.15);color:var(--yellow)">USB</span>{{end}}
                     {{if not .IsMounted}}<span class="badge badge-warn">Rendszermeghajtón</span>{{end}}
                     {{end}}
                 </div>