fix(calendar): OF precedence/transfer + readings resolution; EF Pentecost octave

Fixes found by validating the offline engine per-day vs the LiturgicalCalendar
API (OF) and missalemeum (EF) across 2005-2050. OF calendar is now 0 real
errors in the forward window (season/cycle already perfect).

OF precedence/transfer (calendar):
- Ash Wednesday and Holy Week Mon-Wed are band-2 privileged, so a coinciding
  feast (Chair of St Peter on Ash Wednesday) is suppressed, not observed.
- Solemnities transfer out of Holy Week / the Easter octave: the Annunciation
  defers to the Monday after the 2nd Sunday of Easter; St Joseph is anticipated
  to the Saturday before Palm Sunday; the Nativity of St John the Baptist moves
  to Jun 23 when a Lord's solemnity (Sacred Heart / Corpus Christi) falls Jun 24.
- Within a precedence band, a solemnity of the Lord/BVM outranks a saint's
  (dignity tiebreak) rather than losing an alphabetical slug tie.
- Perpetua & Felicity corrected optional -> obligatory memorial.

OF readings resolution (bible.OFRef + lectionary data):
- Verse-accurate Hebrew->Vulgate psalm mapping incl. the split psalms
  (9/10, 114/115, 116, 147); "+" verse joins and abbreviated ranges ("127-28")
  normalized; single-chapter books (2/3 John, Jude) get chapter 1.
- Cleaned harvest artifacts from of-lectionary.ini (descriptive-suffix gospels,
  "or Year A" alternates, "*"/"[Vulg.]"/bracket markers, slash abbreviations);
  Joel/Malachi/Zechariah/Esther book-versification citations fixed to Vulgate.
- Split a merged Ps 15:10/11 row in vul.tsv. Result: 0 unresolvable OF readings
  over 2557 rendered days (cycles A/B/C, varied Easters).

EF: the Octave of Pentecost (Whit Monday-Saturday) is red, not white.

1 files changed, 19 insertions, 0 deletions

diff --git a/internal/calendar/calendar.go b/internal/calendar/calendar.go
index d224e87..9f24caf 100644
--- a/internal/calendar/calendar.go
+++ b/internal/calendar/calendar.go
@@ -145,10 +145,29 @@ func movableMemorialsOF(y int) []movableCel {
 
 // transferIfImpeded moves a solemnity off a band-1/2 temporal day to the next
 // free day. Non-solemnities are never transferred (they yield instead).
+//
+// Two impeded solemnities are ANTICIPATED (moved earlier) rather than deferred,
+// matching the General Roman Calendar's published transfers:
+//   - St Joseph (Mar 19) falling in Holy Week goes to the Saturday before Palm
+//     Sunday. (The Annunciation, by contrast, defers past the octave via the
+//     generic forward walk below -- to the Monday after the 2nd Sunday of Easter.)
+//   - The Nativity of St John the Baptist (Jun 24), when the day is a solemnity
+//     of the Lord (the Sacred Heart or Corpus Christi falling on Jun 24), goes
+//     to Jun 23.
 func transferIfImpeded(cel Celebration, when time.Time, sel Selection) time.Time {
 	if cel.Rank != RankSolemnity {
 		return when
 	}
+	if strings.Contains(cel.Slug, "joseph-husband") {
+		if palm := Easter(when.Year()).AddDate(0, 0, -7); !when.Before(palm) {
+			return palm.AddDate(0, 0, -1) // Holy Week -> Saturday before Palm Sunday
+		}
+	}
+	if strings.Contains(cel.Slug, "john-the-baptist") {
+		if td := temporal(when, sel); td.Cel.Rank == RankSolemnity && td.Class == ClassLord && !td.Sunday {
+			return when.AddDate(0, 0, -1) // Sacred Heart / Corpus Christi on Jun 24 -> Jun 23
+		}
+	}
 	day := when
 	for i := 0; i < 30; i++ {
 		b := temporal(day, sel)