fix(of): recover season-commemorated saints + correct Irenaeus rank

Audit of the OF sanctoral vs calapi's full celebration list (2026-2028) found
saints that calapi only ever shows as 'commemoration' in a privileged season
(Lent, late Advent, the Christmas octave) were dropped by the generator, and
'first-year-wins' froze a stale rank.

- gen-sanctoral.go: map calapi 'commemoration' -> optional memorial; keep the
  HIGHEST rank per saint across an expanded 2025-2029 reference span (so a saint
  is seen at its true rank on an ordinary weekday, e.g. Polycarp as a memorial
  when Feb 23 falls in Ordinary Time).
- Recovers 15 saints: Polycarp, Perpetua & Felicity, John of God, Frances of
  Rome, Patrick, Cyril of Jerusalem, Turibius, Isidore, Vincent Ferrer, Peter
  Canisius, John of Kanty, Thomas Becket, Sylvester I, and others (197->212).
- Corrects St Irenaeus (June 28) optional -> obligatory memorial (2022 change).

Verified vs calapi per-day 2026-2028: remaining diffs are only the 3 skipped
movable memorials and name-phrasing of temporal days.

2 files changed, 225 insertions, 68 deletions

diff --git a/internal/caldata/roman-calendar.ini b/internal/caldata/roman-calendar.ini
index a11655c..63fd703 100644
--- a/internal/caldata/roman-calendar.ini
+++ b/internal/caldata/roman-calendar.ini
@@ -61,21 +61,21 @@ name.en = Saint Anthony of Egypt, abbot
 name.pl = św. Antoniego, opata
 name.la = S. Antonii, abbatis
 
-[fabian-pope-and-martyr]
+[sebastian-martyr]
 date = 01-20
 rank = optional
 class = saint
 colour = red
-name.en = Saint Fabian, pope and martyr
-name.la = S. Fabiani, papae et martyris
+name.en = Saint Sebastian, martyr
+name.la = S. Sebastiani, martyris
 
-[sebastian-martyr]
+[fabian-pope-and-martyr]
 date = 01-20
 rank = optional
 class = saint
 colour = red
-name.en = Saint Sebastian, martyr
-name.la = S. Sebastiani, martyris
+name.en = Saint Fabian, pope and martyr
+name.la = S. Fabiani, papae et martyris
 
 [agnes-virgin-and-martyr]
 date = 01-21
@@ -255,6 +255,14 @@ name.en = Chair of Saint Peter, apostle
 name.pl = katedry św. Piotra Apostoła
 name.la = Cathedrae S. Petri, apostoli
 
+[polycarp-bishop-and-martyr]
+date = 02-23
+rank = memorial
+class = saint
+colour = red
+name.en = Saint Polycarp, bishop and martyr
+name.la = S. Polycarpi, episcopi et martyris
+
 [casimir]
 date = 03-04
 rank = optional
@@ -263,6 +271,46 @@ colour = white
 name.en = Saint Casimir
 name.la = S. Casimiri
 
+[saints-perpetua-and-felicity-martyrs]
+date = 03-07
+rank = optional
+class = saint
+colour = violet
+name.en = Saints Perpetua and Felicity, martyrs
+name.la = Ss. Perpetuae et Felicitatis, martyrum
+
+[john-of-god-religious]
+date = 03-08
+rank = optional
+class = saint
+colour = violet
+name.en = Saint John of God, religious
+name.la = S. Ioannis a Deo, religiosi
+
+[frances-of-rome-religious]
+date = 03-09
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Frances of Rome, religious
+name.la = S. Franciscae Romanae, religiosae
+
+[patrick-bishop]
+date = 03-17
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Patrick, bishop
+name.la = S. Patricii, episcopi
+
+[cyril-of-jerusalem-bishop-and-doctor]
+date = 03-18
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Cyril of Jerusalem, bishop and doctor
+name.la = S. Cyrilli Hierosolymitani, episcopi et Ecclesiae doctoris
+
 [joseph-husband-of-the-blessed-virgin-mary]
 date = 03-19
 rank = solemnity
@@ -272,6 +320,14 @@ name.en = Saint Joseph Husband of the Blessed Virgin Mary
 name.pl = św. Józefa, Oblubieńca Najświętszej Maryi Panny
 name.la = S. IOSEPH, SPONSI B. M. V.
 
+[turibius-of-mogrovejo-bishop]
+date = 03-23
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Turibius of Mogrovejo, bishop
+name.la = S. Turibii de Mongrovejo, episcopi
+
 [annunciation-of-the-lord]
 date = 03-25
 rank = solemnity
@@ -281,6 +337,30 @@ name.en = Annunciation of the Lord
 name.pl = Zwiastowania Pańskiego
 name.la = IN ANNUNTIATIONE DOMINI
 
+[francis-of-paola-hermit]
+date = 04-02
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Francis of Paola, hermit
+name.la = S. Francisci de Paola, eremitae
+
+[isidore-bishop-and-doctor-of-the-church]
+date = 04-04
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Isidore, bishop and doctor of the Church
+name.la = S. Isidori, episcopi et Ecclesiae doctoris
+
+[vincent-ferrer-priest]
+date = 04-05
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Vincent Ferrer, priest
+name.la = S. Vincentii Ferrer, presbyteri
+
 [john-baptist-de-la-salle-priest]
 date = 04-07
 rank = memorial
@@ -289,6 +369,14 @@ colour = white
 name.en = Saint John Baptist de la Salle, priest
 name.la = S. Ioannis Baptistae de la Salle, presbyteri
 
+[stanislaus-bishop-and-martyr]
+date = 04-11
+rank = memorial
+class = saint
+colour = red
+name.en = Saint Stanislaus, bishop and martyr
+name.la = S. Stanislai, episcopi et martyris
+
 [martin-i-pope-and-martyr]
 date = 04-13
 rank = optional
@@ -305,21 +393,21 @@ colour = white
 name.en = Saint Anselm of Canterbury, bishop and doctor of the Church
 name.la = S. Anselmi, episcopi et Ecclesiae doctoris
 
-[george-martyr]
+[adalbert-bishop-and-martyr]
 date = 04-23
 rank = optional
 class = saint
 colour = red
-name.en = Saint George, martyr
-name.la = S. Georgii, martyris
+name.en = Saint Adalbert, bishop and martyr
+name.la = S. Adalberti, episcopi et martyris
 
-[adalbert-bishop-and-martyr]
+[george-martyr]
 date = 04-23
 rank = optional
 class = saint
 colour = red
-name.en = Saint Adalbert, bishop and martyr
-name.la = S. Adalberti, episcopi et martyris
+name.en = Saint George, martyr
+name.la = S. Georgii, martyris
 
 [fidelis-of-sigmaringen-priest-and-martyr]
 date = 04-24
@@ -396,21 +484,21 @@ name.en = Saints Philip and James, Apostles
 name.pl = Najświętszej Maryi Panny, Królowej Polski
 name.la = Ss. Philippi et Iacobi, apostolorum
 
-[pancras-martyr]
+[saints-nereus-and-achilleus-martyrs]
 date = 05-12
 rank = optional
 class = saint
 colour = red
-name.en = Saint Pancras, martyr
-name.la = S. Pancratii, martyris
+name.en = Saints Nereus and Achilleus, martyrs
+name.la = Ss. Nerei et Achillei, martyrum
 
-[saints-nereus-and-achilleus-martyrs]
+[pancras-martyr]
 date = 05-12
 rank = optional
 class = saint
 colour = red
-name.en = Saints Nereus and Achilleus, martyrs
-name.la = Ss. Nerei et Achillei, martyrum
+name.en = Saint Pancras, martyr
+name.la = S. Pancratii, martyris
 
 [our-lady-of-fatima]
 date = 05-13
@@ -461,14 +549,6 @@ colour = white
 name.en = Saint Rita of Cascia
 name.la = S. Ritae de Cascia, religiosae
 
-[mary-magdalene-de-pazzi-virgin]
-date = 05-25
-rank = optional
-class = saint
-colour = white
-name.en = Saint Mary Magdalene de Pazzi, virgin
-name.la = S. Mariae Magdalenae de' Pazzi, virginis
-
 [bede-the-venerable-priest-and-doctor]
 date = 05-25
 rank = optional
@@ -485,6 +565,14 @@ colour = white
 name.en = Saint Gregory VII, pope
 name.la = S. Gregorii VII, papae
 
+[mary-magdalene-de-pazzi-virgin]
+date = 05-25
+rank = optional
+class = saint
+colour = white
+name.en = Saint Mary Magdalene de Pazzi, virgin
+name.la = S. Mariae Magdalenae de' Pazzi, virginis
+
 [philip-neri-priest]
 date = 05-26
 rank = memorial
@@ -631,7 +719,7 @@ name.la = S. Cyrilli Alexandrini, episcopi et Ecclesiae doctoris
 
 [irenaeus-bishop-and-martyr]
 date = 06-28
-rank = optional
+rank = memorial
 class = saint
 colour = red
 name.en = Saint Irenaeus, bishop and martyr
@@ -872,14 +960,6 @@ name.en = Transfiguration of the Lord
 name.pl = Przemienienia Pańskiego
 name.la = IN TRANSFIGURATIONE DOMINI
 
-[cajetan-priest]
-date = 08-07
-rank = optional
-class = saint
-colour = white
-name.en = Saint Cajetan, priest
-name.la = S. Caietani, presbyteri
-
 [sixtus-ii-pope-and-companions-martyrs]
 date = 08-07
 rank = optional
@@ -888,6 +968,14 @@ colour = red
 name.en = Saint Sixtus II, pope, and companions, martyrs
 name.la = Ss. Xysti, papae, et sociorum, martyrum
 
+[cajetan-priest]
+date = 08-07
+rank = optional
+class = saint
+colour = white
+name.en = Saint Cajetan, priest
+name.la = S. Caietani, presbyteri
+
 [dominic-priest]
 date = 08-08
 rank = memorial
@@ -1186,21 +1274,21 @@ name.en = Saint Vincent de Paul, priest
 name.pl = św. Wincentego à Paulo, prezbitera
 name.la = S. Vincentii de Paul, presbyteri
 
-[saints-lawrence-ruiz-and-companions-martyrs]
+[wenceslaus-martyr]
 date = 09-28
 rank = optional
 class = saint
 colour = red
-name.en = Saints Lawrence Ruiz and companions, martyrs
-name.la = S. Laurentii Ruiz et sociorum, martyrum
+name.en = Saint Wenceslaus, martyr
+name.la = S. Venceslai, martyris
 
-[wenceslaus-martyr]
+[saints-lawrence-ruiz-and-companions-martyrs]
 date = 09-28
 rank = optional
 class = saint
 colour = red
-name.en = Saint Wenceslaus, martyr
-name.la = S. Venceslai, martyris
+name.en = Saints Lawrence Ruiz and companions, martyrs
+name.la = S. Laurentii Ruiz et sociorum, martyrum
 
 [saints-michael-gabriel-and-raphael-archangels]
 date = 09-29
@@ -1264,14 +1352,6 @@ name.en = Our Lady of the Rosary
 name.pl = Najświętszej Maryi Panny Różańcowej
 name.la = B. Mariae Virginis a Rosario
 
-[denis-and-companions-martyrs]
-date = 10-09
-rank = optional
-class = saint
-colour = red
-name.en = Saint Denis and companions, martyrs
-name.la = Ss. Dionysii, episcopi, et sociorum, martyrum
-
 [john-leonardi-priest]
 date = 10-09
 rank = optional
@@ -1280,6 +1360,14 @@ colour = white
 name.en = Saint John Leonardi, priest
 name.la = S. Ioannis Leonardi, presbyteri
 
+[denis-and-companions-martyrs]
+date = 10-09
+rank = optional
+class = saint
+colour = red
+name.en = Saint Denis and companions, martyrs
+name.la = Ss. Dionysii, episcopi, et sociorum, martyrum
+
 [john-xxiii-pope]
 date = 10-11
 rank = optional
@@ -1465,21 +1553,21 @@ colour = white
 name.en = Saint Albert the Great, bishop and doctor
 name.la = S. Alberti Magni, episcopi et Ecclesiae doctoris
 
-[gertrude-the-great-virgin]
+[margaret-of-scotland]
 date = 11-16
 rank = optional
 class = saint
 colour = white
-name.en = Saint Gertrude the Great, virgin
-name.la = S. Gertrudis, virginis
+name.en = Saint Margaret of Scotland
+name.la = S. Margaritae Scotiae
 
-[margaret-of-scotland]
+[gertrude-the-great-virgin]
 date = 11-16
 rank = optional
 class = saint
 colour = white
-name.en = Saint Margaret of Scotland
-name.la = S. Margaritae Scotiae
+name.en = Saint Gertrude the Great, virgin
+name.la = S. Gertrudis, virginis
 
 [elizabeth-of-hungary-religious]
 date = 11-17
@@ -1516,14 +1604,6 @@ name.en = Saint Cecilia, virgin and martyr
 name.pl = św. Cecylii, dziewicy i męczennicy
 name.la = S. Caeciliae, virginis et martyris
 
-[columban-religious]
-date = 11-23
-rank = optional
-class = saint
-colour = white
-name.en = Saint Columban, religious
-name.la = S. Columbani, abbatis
-
 [clement-i-pope-and-martyr]
 date = 11-23
 rank = optional
@@ -1532,6 +1612,14 @@ colour = red
 name.en = Saint Clement I, pope and martyr
 name.la = S. Clementis I, papae et martyris
 
+[columban-religious]
+date = 11-23
+rank = optional
+class = saint
+colour = white
+name.en = Saint Columban, religious
+name.la = S. Columbani, abbatis
+
 [andrew-dung-lac-and-his-companions-martyrs]
 date = 11-24
 rank = memorial
@@ -1640,6 +1728,22 @@ colour = white
 name.en = Saint John of the Cross, priest and doctor
 name.la = S. Ioannis a Cruce, presbyteri et Ecclesiae doctoris
 
+[peter-canisius-priest-and-doctor]
+date = 12-21
+rank = optional
+class = saint
+colour = violet
+name.en = Saint Peter Canisius, priest and doctor
+name.la = S. Petri Canisii, presbyteri et Ecclesiae doctoris
+
+[john-of-kanty-priest]
+date = 12-23
+rank = optional
+class = saint
+colour = violet
+name.en = Saint John of Kanty, priest
+name.la = S. Ioannis de Kęty, presbyteri
+
 [stephen-the-first-martyr]
 date = 12-26
 rank = feast
@@ -1665,3 +1769,19 @@ class = saint
 colour = red
 name.en = Holy Innocents, martyrs
 name.la = Ss. Innocentium, martyrum
+
+[thomas-becket-bishop-and-martyr]
+date = 12-29
+rank = optional
+class = saint
+colour = white
+name.en = Saint Thomas Becket, bishop and martyr
+name.la = S. Thomae Becket, episcopi et martyris
+
+[sylvester-i-pope]
+date = 12-31
+rank = optional
+class = saint
+colour = white
+name.en = Saint Sylvester I, pope
+name.la = S. Silvestri I, papae
diff --git a/scripts/gen-sanctoral.go b/scripts/gen-sanctoral.go
index 6d81d66..db2e490 100644
--- a/scripts/gen-sanctoral.go
+++ b/scripts/gen-sanctoral.go
@@ -61,11 +61,32 @@ func fetchMonth(cal string, y, m int) ([]calDay, error) {
 }
 
 var (
-	rankMap     = map[string]calendar.Rank{"solemnity": calendar.RankSolemnity, "feast": calendar.RankFeast, "memorial": calendar.RankMemorial, "optional memorial": calendar.RankOptional}
+	// "commemoration" is calapi's rank for a saint reduced to a commemoration by a
+	// privileged season (Lent, late Advent, the Christmas octave). Such a saint is
+	// never the observed day, so it maps to an optional memorial for lectio; its
+	// true (higher) rank is recovered from a year where its date is an ordinary
+	// weekday (see rankBand + the highest-rank-wins merge below).
+	rankMap     = map[string]calendar.Rank{"solemnity": calendar.RankSolemnity, "feast": calendar.RankFeast, "memorial": calendar.RankMemorial, "optional memorial": calendar.RankOptional, "commemoration": calendar.RankOptional}
 	slugStripRe = regexp.MustCompile(`[^a-z0-9]+`)
 	plPrefixRe  = regexp.MustCompile(`^(?:Uroczystość|Święto|Wspomnienie(?: obowiązkowe)?)\s+`)
 )
 
+// rankBand orders OF ranks for the highest-rank-wins merge (higher = higher rank).
+func rankBand(r calendar.Rank) int {
+	switch r {
+	case calendar.RankSolemnity:
+		return 5
+	case calendar.RankFeast:
+		return 4
+	case calendar.RankMemorial:
+		return 3
+	case calendar.RankOptional:
+		return 2
+	default:
+		return 0
+	}
+}
+
 func slugify(title string) string {
 	s := strings.ToLower(title)
 	s = strings.NewReplacer("ł", "l", "æ", "ae", "é", "e", "è", "e", "ô", "o", "ç", "c").Replace(s)
@@ -121,9 +142,13 @@ func main() {
 		"the-memorial-of-the-blessed-virgin-mary-on-saturday": true, // any free Saturday
 	}
 
-	// Reference years: cover every weekday so a saint whose date is a Sunday in
-	// one year is captured in another. 2025 is past -> niedziela gives pl names.
-	for _, y := range []int{2025, 2026, 2027} {
+	// Reference years: enough spread that every fixed date falls on an ordinary
+	// weekday (not a Sunday, not inside a privileged season) in at least one year,
+	// so each saint is seen with its true rank. Start at 2025 (past -> niedziela
+	// gives pl names; also the date of a transferred feast is taken from the first
+	// year it is observed, and 2025 observes Joseph/Annunciation on their proper
+	// fixed dates).
+	for _, y := range []int{2025, 2026, 2027, 2028, 2029} {
 		for m := 1; m <= 12; m++ {
 			en, err := fetchMonth("general-en", y, m)
 			if err != nil {
@@ -167,7 +192,19 @@ func main() {
 					if slug == "" || movableSkip[slug] {
 						continue
 					}
-					if _, seen := entries[slug]; seen {
+					// Highest-rank-wins: a saint seen as a commemoration in a
+					// privileged season one year and as its full rank on an ordinary
+					// weekday another year keeps the higher rank. Date/name/pl are
+					// kept from the first (proper-date) occurrence; rank/colour/class
+					// are upgraded.
+					if cur, seen := entries[slug]; seen {
+						if rankBand(rk) > rankBand(calendar.Rank(cur.rank)) {
+							cur.rank = string(rk)
+							cur.colour = c.Colour
+							cur.class = classOf(c.Title)
+							cur.rankNum = c.RankNum
+							entries[slug] = cur
+						}
 						continue
 					}
 					laTitle := ""