controller v0.264.0: the household is told when an update is undone or held, in its language

app_update_undone / app_update_held events (09 decision 15), on by
default and seeded once on existing boxes; R-606 update sentences as
key+args rendered per reader; R-646 startup applied-meta backfill for
apps current with the catalog; R-620 a disabled notifier WARNs once per
event type. Needs hub v0.120.0.

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

controller/internal/web/templates/app_info.html

@@ -29,11 +29,11 @@
 </div>
 
 {{if .Stack.Updating}}
-<div class="alert alert-info" style="margin-top:1rem" data-update-phase="{{.Stack.UpdatePhase}}">{{.Stack.UpdatePhaseLabel}}</div>
+<div class="alert alert-info" style="margin-top:1rem" data-update-phase="{{.Stack.UpdatePhase}}">{{updatePhaseText .Stack}}</div>
 {{else if .Stack.HoldReason}}
-<div class="alert alert-error" style="margin-top:1rem" data-held="true">{{.Stack.HoldReason}} <a href="/backups/apps" class="btn btn-sm btn-outline">{{T "app_info.mentesek"}}</a></div>
+<div class="alert alert-error" style="margin-top:1rem" data-held="true">{{holdText .Stack}} <a href="/backups/apps" class="btn btn-sm btn-outline">{{T "app_info.mentesek"}}</a></div>
 {{else if .Stack.UpdateError}}
-<div class="alert alert-warning" style="margin-top:1rem" data-update-error="true">{{.Stack.UpdateError}}</div>
+<div class="alert alert-warning" style="margin-top:1rem" data-update-error="true">{{updateErrorText .Stack}}</div>
 {{else if .UpdateUndoneLine}}
 <div class="alert alert-info" style="margin-top:1rem" data-update-undone="true">{{.UpdateUndoneLine}}</div>
 {{end}}