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/cmd/controller/main.go

@@ -580,6 +580,10 @@ func main() {
 		apiRouter.OnConfigApplied = func() {
 			pushInfraBackup(cfg, sett, stackProv, hubPusher, logger)
 		}
+		apiRouter.OnCrossDriveComplete = func() {
+			pushInfraBackup(cfg, sett, stackProv, hubPusher, logger)
+			writeLocalInfraBackup(cfg, sett, stackProv, logger)
+		}
 	}
 	if assetsSyncer != nil {
 		apiRouter.SetAssetsSyncer(assetsSyncer)