v0.306.0: R-570 — the off-site note decides on its kind only; the pre-0.251.0 text fallback is deleted

Fleet condition read on each box's settings.json 2026-10-10 (offbox.last_success ~02:16Z on 0.304.0).
Red-proof: the new no-kind row of TestR553_StaleNoteDecisionSurvivesWordingChange failed against the fallback.

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

controller/internal/web/r553_stale_note_test.go

@@ -35,10 +35,12 @@ func TestR553_StaleNoteDecisionSurvivesWordingChange(t *testing.T) {
 		{"still nothing selected → the honest note stays", hu, backup.OffboxWarnNoAppsSelected, 0, hu},
 		{"a quota note passes through", "A tároló a keret 84%-át használja (42/50 GB).", "", 3,
 			"A tároló a keret 84%-át használja (42/50 GB)."},
-		// LEGACY: a box upgraded to v0.251.0 still carries the OLD text with no kind until its next
-		// off-site run rewrites it. Until then the text test is what it has.
-		{"legacy persisted text, no kind", hu, "", 1, selectionChanged},
-		{"legacy: any other text without a kind is shown verbatim", "Valami más történt.", "", 1, "Valami más történt."},
+		// R-570 (2026-10-10): the legacy text test is GONE. Every fleet box ran off-site on ≥ 0.251.0 (read on
+		// demo-hp, demo-felhom and Tester 1: last_success 2026-10-10 ~02:16Z, controller 0.304.0), so no box carries
+		// the old text without a kind. The decision is the kind and ONLY the kind: the same words with no kind are
+		// shown verbatim — the words never decide again (red against the fallback: it returned the replacement).
+		{"no kind: the words alone decide nothing", hu, "", 1, hu},
+		{"no kind: any other text is shown verbatim", "Valami más történt.", "", 1, "Valami más történt."},
 	}
 	for _, c := range cases {
 		if got := s.offboxWarningDisplay(c.warning, c.kind, c.toggled, "hu"); got != c.want {