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/i18n_web.go

@@ -313,6 +313,26 @@ func (s *Server) localeFuncs(lang string) template.FuncMap {
 		"stateLabel": func(state stacks.ContainerState) string {
 			return b.Msg(lang, stateLabelKey(state))
 		},
+		// v0.264.0 (R-606): the update path in the reader's language. A stored sentence with no key (an
+		// older version's, or a composed one) renders as it is — never as an empty line.
+		"updatePhaseText": func(st interface{}) string {
+			stk := stackOf(st)
+			if l := stacks.UpdatePhaseLabelIn(lang, stk.UpdatePhase); l != "" && l != stacks.UpdatePhaseLabel(stk.UpdatePhase) {
+				return l
+			}
+			return stk.UpdatePhaseLabel // no translation for this phase: the stored label, never an empty line
+		},
+		"updateErrorText": func(st interface{}) string { return stackOf(st).UpdateErrorIn(lang) },
+		"holdText": func(st interface{}) string {
+			stk := stackOf(st)
+			if stk.HoldReason == "" || s.backupMgr == nil {
+				return stk.HoldReason
+			}
+			if held, why := s.backupMgr.RestoreHoldForLang(stk.Name, lang); held && why != "" {
+				return why
+			}
+			return stk.HoldReason
+		},
 		"timeAgo": func(t time.Time) string {
 			if t.IsZero() {
 				return "–"