propers: transcribe Lauds' fixed and weekday content

Every fixed and weekday-variable text Lauds needs beyond the psalms/
canticles themselves: per-weekday antiphons (data/hours/lauds-
antiphons.yml, reconstructed with an embedded '*' from the engine's
separately-rendered incipit/full lines), the weekday capitulum/
responsory/hymn/versicle bundle (shared verbatim Mon-Fri for the
capitulum, confirmed against the live engine), the fixed Benedictus
text, the Kyrie/Pater-noster short litany, the four Tridentine
suffrages, the conclusio, and the closing versicle.

Saturday's hymn is left honestly `missing`: every ordinary-time
Saturday is either Marian-Sabbato-overridden or falls in a privileged
season whose hymn is itself swapped for the season's own, so there's
no achievable date showing a genuinely per-annum, unprivileged
Saturday Lauds hymn to source it from.

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

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

@@ -0,0 +1,38 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds live query.
+id: lauds-hymn-sunday
+text:
+  la: |
+    Ecce jam noctis tenuátur umbra,
+    Lucis auróra rútilans corúscat:
+    Nísibus totis rogitémus omnes
+    Cunctipoténtem:
+
+    Ut Deus nostri miserátus, omnem
+    Pellat languórem, tríbuat salútem,
+    Donet et nobis pietáte Patris
+    Regna polorum.
+
+    Præstet hoc nobis Déitas beáta
+    Patris, ac Nati, paritérque Sancti
+    Spíritus, cujus réboat in omni
+    Glória mundo.
+    Amen.
+  en: |
+    Lo, the dim shadows of the night are waning;
+    Lightsome and blushing, dawn of day returneth;
+    Fervent in spirit, to the world’s Creator
+    Pray we devoutly:
+
+    That he may pity sinners in their sighing,
+    Banish all troubles, kindly health bestowing;
+    And may he grant us, of his countless blessings,
+    Peace that is endless.
+
+    This be our portion, God forever blessed,
+    Father eternal, Son, and Holy Spirit,
+    Whose is the glory, which through all creation
+    Ever resoundeth.
+    Amen.
+status:
+  la: verified
+  en: verified