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-saturday.yml

@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds live
+# query -- sourced from a Lenten Ember Saturday; see
+# lauds-capitulum-saturday.yml's note on why, and why this is believed
+# genuine per-annum content rather than a Lenten swap.
+id: lauds-versicle-saturday
+text:
+  la: "V. Ángelis suis Deus mandávit de te.\nR. Ut custódiant te in ómnibus viis tuis."
+  en: "V. God hath given His Angels charge over thee.\nR. To keep thee in all thy ways."
+status:
+  la: verified
+  en: verified