D62: restore copies kept 30 days, listed with their date, deletable by hand (typed name, never a needed copy, operator event); D63: a test-build-only fault switch for the R-1256 H4/H5 live proofs — tests red first

controller/internal/backup/r1256_restore_edges_test.go

@@ -300,7 +300,7 @@ func r1256Exists(p string) bool { _, err := os.Stat(p); return err == nil }
 func TestR1256_H8_OnlyAnUnusedOldCopyIsRemoved(t *testing.T) {
 	m, sett := newOffboxManager(t)
 	now := time.Now()
-	old := 20 * 24 * time.Hour
+	old := 40 * 24 * time.Hour
 	unused := r1256Copy(t, m, "unused", old, now)
 	young := r1256Copy(t, m, "young", 24*time.Hour, now)
 	held := r1256Copy(t, m, "held", old, now)
@@ -339,7 +339,7 @@ func TestR1256_H8_OnlyAnUnusedOldCopyIsRemoved(t *testing.T) {
 func TestR1256_H8_NothingIsRemovedDuringARestoreOrWithAnUnreadableMarker(t *testing.T) {
 	m, _ := newOffboxManager(t)
 	now := time.Now()
-	c := r1256Copy(t, m, "app", 20*24*time.Hour, now)
+	c := r1256Copy(t, m, "app", 40*24*time.Hour, now)
 	m.BeginRestoreOp("restore", "other")
 	if got := m.SweepUnusedRestoreCopies(now); len(got) != 0 || !r1256Exists(c) {
 		t.Fatalf("removed %v during a restore", got)