Add rank data to named temporal feast records

TemporalFeastRecord had no rank field at all, so Christmas/Pentecost/
Christ the King/Marian Saturday had nothing for the day label to show.
Christmas, Pentecost, and Christ the King are Duplex I Class (the
latter's own file comment already said so); Marian Saturday is a
Simplex-strength votive commemoration.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/calendar/temporal-feasts/pentecost-sunday.yml

@@ -10,6 +10,7 @@
 # before it gets the chance.
 id: pentecost-sunday
 name: "Pentecost"
+rank: duplex-1-classis
 octave:
   enabled: true
   wins: duplex