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-versicle-thursday.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds live query.
+id: lauds-versicle-thursday
+text:
+  la: "V. Repléti sumus mane misericórdia tua.\nR. Exsultávimus, et delectáti sumus."
+  en: "V. We are filled in the morning with thy mercy.\nR. And we have rejoiced, and are delighted."
+status:
+  la: verified
+  en: verified