Author full Christmas-Octave Sunday content, fix a temporal-id override gap

christmas-octave-sunday previously had only its Benedictus antiphon
authored -- no Lauds psalmody override or office bundle, no Prime/Terce/
Sext/None content at all. Adds the full set: Lauds psalmody (3 psalms +
Canticle of the Three Young Men + Laudate, all distinct antiphons),
Lauds capitulum/versicle/hymn ("A solis ortus cardine"), and Prime/Terce/
Sext/None antiphons+chapters (Terce/Sext/None only, matching Gal
4:1-2/4:4-5/4:7 -- the same reading the raw Monastic Tridentinum 1617
source file gives for this Sunday).

Real code gap found and fixed along the way: getMinorHourOverrideId
(hours/resolve-common.ts) only checked the sanctoral branch of
resolveOfficeWinner's result, so a named temporal feast in
ALWAYS_OVERRIDE_TEMPORAL_IDS (marian-saturday, christ-the-king) got a
Lauds psalmody override but silently never a Prime/Terce/Sext/None one,
however much was authored for it. Fixed by mirroring
getPsalmodyOverrideFor's own temporal-id branch (hours/lauds.ts), and
christmas-octave-sunday added to that set.

Content sourced from a "Divino Afflatu 1954" live query rather than
Monastic Tridentinum 1617, since 1617 has no real identity of its own for
this Sunday under its own calendar rules on most Dec 26-29 dates (only
the collect, already authored separately, happened to be pulled from a
date where 1617 did render it) -- consistent with this app's stated
precedent of following D.A. for calendar/precedence even while keeping
1617's shape for the hours themselves elsewhere.

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

src/data/propers/common/lauds-hymn-christmas-octave-sunday.yml

@@ -0,0 +1,91 @@
+# Verified against Divinum Officium ("Divino Afflatu 1954"), Lauds live
+# query, 2026-12-27 -- see lauds-psalmody-overrides/christmas-octave-
+# sunday.yml's header. "A solis ortus cardine" -- self-contained,
+# including its own final doxology stanza.
+id: lauds-hymn-christmas-octave-sunday
+text:
+  la: |
+    A solis ortus cárdine
+    Ad usque terræ límitem,
+    Christum canámus Príncipem,
+    Natum María Vírgine.
+
+    Beátus auctor sǽculi
+    Servíle corpus índuit:
+    Ut carne carnem líberans,
+    Ne pérderet quos cóndidit.
+
+    Castæ Paréntis víscera
+    Cæléstis intrat grátia:
+    Venter Puéllæ báiulat
+    Secréta, quæ non nóverat.
+
+    Domus pudíci péctoris
+    Templum repénte fit Dei:
+    Intácta nésciens virum,
+    Concépit alvo Fílium.
+
+    Enítitur puérpera,
+    Quem Gábriel prædíxerat,
+    Quem ventre Matris géstiens,
+    Baptísta clausum sénserat.
+
+    Fœno iacére pértulit:
+    Præsépe non abhórruit:
+    Et lacte módico pastus est,
+    Per quem nec ales ésurit.
+
+    Gaudet chorus cæléstium,
+    Et Angeli canunt Deo;
+    Palámque fit pastóribus
+    Pastor, Creátor ómnium.
+
+    Iesu, tibi sit glória,
+    Qui natus es de Vírgine,
+    Cum Patre, et almo Spíritu,
+    In sempitérna sǽcula.
+    Amen.
+  en: |
+    From lands that see the sun arise
+    To earth's remotest boundaries,
+    The Virgin-born today we sing,
+    The Son of Mary, Christ the King.
+
+    Blest Author of this earthly frame,
+    To take a servant's form He came,
+    That, liberating flesh by flesh,
+    Whom He had made might live afresh.
+
+    In that chaste parent's holy womb
+    Celestial grace hath found its home;
+    And she, as earthly bride unknown,
+    Yet calls that Offspring blest her own.
+
+    The mansion of the modest breast
+    Becomes a shrine where God shall rest:
+    The pure and undefilèd one
+    Conceived in her womb the Son.
+
+    That Son, that Royal Son she bore,
+    Whom Gabriel's voice had told afore;
+    Whom, in His mother yet concealed,
+    The infant Baptist had revealed.
+
+    The manger and the straw He bore,
+    The cradle did He not abhor;
+    By milk in infant portions fed,
+    Who gives e'en fowls their daily bread.
+
+    The heavenly chorus filled the sky,
+    The Angels sang to God on high,
+    What time to shepherds, watching lone,
+    They made creation's Shepherd known.
+
+    All honor, laud, and glory be,
+    O Jesu, Virgin-born to thee:
+    All glory, as is ever meet,
+    To Father and to Paraclete.
+    Amen.
+status:
+  la: verified
+  en: verified