Port seasonal office content to Lauds, closing the same pre-existing gap

Lauds had the identical issue Vespers started with: resolveOffice only
ever rendered the plain weekday chapter/responsory/hymn/versicle,
year-round, with no Advent/Lent/Passiontide/Paschaltide override —
same source file (Major Special.txt) as Vespers', just never wired up.
Ports the same seasonalOfficeSuffix-based precedence (per-feast/octave
override -> season -> weekday default) and the matching seasonal
content, transcribed the same way as Vespers' own (Monastic hymn
variants applied from the source's substitution notation against each
base Roman text). Paschaltide's chapter is byte-identical to Vespers'
own — the source aliases "[Pasch Vespera] = @:Pasch Laudes" — so both
hours' data files intentionally carry the same text rather than one
importing the other's id.

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

src/data/propers/common/lauds-hymn-paschaltide.yml

@@ -0,0 +1,72 @@
+# Sourced from Divinum Officium's Monastic block ("[HymnusM Pasch
+# Laudes_]", the non-Dominican branch "[HymnusM Pasch Laudes]" resolves
+# to — Psalterium/Special/Major Special.txt) — "Auróra lucis rútilat",
+# full separate Monastic text (not a substitution against the Roman
+# "Auróra cælum púrpurat"). Not live-query-verified (see TODO.md).
+id: lauds-hymn-paschaltide
+text:
+  la: |
+    Auróra lucis rútilat,
+    Cælum láudibus íntonat,
+    Mundus exsúltans júbilat,
+    Gemens inférnus úlulat:
+
+    Cum Rex ille fortíssimus,
+    Mortis confráctis víribus,
+    Pede concúlcans tártara,
+    Solvit a pœna míseros.
+
+    Ille qui clausus lápide
+    Custodítur sub mílite,
+    Triúmphans pompa nóbili,
+    Victor surgit de fúnere.
+
+    Solútis jam gemítibus,
+    Et inférni dolóribus,
+    Quia surréxit Dóminus,
+    Respléndens clamat Ángelus.
+
+    Quǽsumus, Auctor ómnium,
+    In hoc pascháli gáudio,
+    Ab omni mortis ímpetu
+    Tuum defénde pópulum.
+
+    Glória tibi Dómine,
+    Qui surrexísti a mórtuis,
+    Cum Patre et Sancto Spíritu,
+    In sempitérna sǽcula.
+    Amen.
+  en: |
+    The morn had spread her crimson rays,
+    When rang the skies with shouts of praise;
+    Earth joined the joyful hymn to swell,
+    That brought despair to vanquished hell.
+
+    He comes victorious from the grave,
+    The Lord omnipotent to save,
+    And brings with him to light of day
+    The saints who long imprisoned lay.
+
+    Vain is the cavern's three-fold ward —
+    The stone, the seal, the armed guard;
+    O death, no more thine arm we fear,
+    The Victor's tomb is now thy bier.
+
+    Let hymns of joy to grief succeed,
+    We know that Christ is risen indeed;
+    We hear his white-robed angel's voice,
+    And in our risen Lord rejoice.
+
+    With Christ we died, with Christ we rose,
+    When at the font his name we chose;
+    Oh, let not sin our robes defile,
+    And turn to grief the paschal smile.
+
+    To God the Father let us sing,
+    To God the Son, our risen King,
+    And equally let us adore
+    The Spirit, God forevermore.
+    Amen.
+status:
+  la: draft
+  en: draft