feat(calendar): EF (1962) temporal cycle temporalEF + EF seasons

8 EF seasons by date boundary (Septuagesima, Passiontide, Time after Epiphany/
Pentecost + shared); major feasts of the Lord; Christ the King = last Sun of
October. ParseRank accepts EF ranks.

1 files changed, 6 insertions, 9 deletions

diff --git a/internal/calendar/types.go b/internal/calendar/types.go
index 0ccef8b..298e49d 100644
--- a/internal/calendar/types.go
+++ b/internal/calendar/types.go
@@ -137,16 +137,13 @@ type LiturgicalDay struct {
 	WeekdayCycle string // "I" | "II"
 }
 
+// ParseRank validates a rank token (OF or EF vocabulary), falling back to
+// RankFerial for anything unknown.
 func ParseRank(s string) Rank {
-	switch s {
-	case "solemnity":
-		return RankSolemnity
-	case "feast":
-		return RankFeast
-	case "memorial":
-		return RankMemorial
-	case "optional":
-		return RankOptional
+	switch Rank(s) {
+	case RankSolemnity, RankFeast, RankMemorial, RankOptional, RankFerial,
+		RankClass1, RankClass2, RankClass3, RankClass4, RankCommemoration:
+		return Rank(s)
 	default:
 		return RankFerial
 	}