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/funcmap.go

@@ -128,6 +128,12 @@ func (s *Server) templateFuncMap() template.FuncMap {
 				return "off"
 			}
 		},
+		// v0.264.0 (R-606): the update path's sentences, rendered per reader. These are the HUNGARIAN
+		// forms — exactly what the templates printed before (.UpdatePhaseLabel / .UpdateError /
+		// .HoldReason); localeFuncs overrides all three for another language.
+		"updatePhaseText": func(st interface{}) string { return stackOf(st).UpdatePhaseLabel },
+		"updateErrorText": func(st interface{}) string { return stackOf(st).UpdateError },
+		"holdText":        func(st interface{}) string { return stackOf(st).HoldReason },
 		"stateLabel": func(state stacks.ContainerState) string {
 			switch state {
 			case stacks.StateRunning:
@@ -491,3 +497,18 @@ func fmtRFC3339Local(s string) string {
 	}
 	return t.In(getTimezone()).Format("2006-01-02 15:04")
 }
+
+// stackOf lets the update-path template funcs take a stack the way each page holds it (app_info: a
+// *stacks.Stack; stacks: a stacks.Stack in a range). Anything else is an empty stack — the func then
+// prints an empty string, which a render test would see.
+func stackOf(v interface{}) stacks.Stack {
+	switch st := v.(type) {
+	case stacks.Stack:
+		return st
+	case *stacks.Stack:
+		if st != nil {
+			return *st
+		}
+	}
+	return stacks.Stack{}
+}