Author proper Lauds/Vespers antiphons for the Beheading of St. John Baptist

Live-verified against Divinum Officium (Tridentine 1906/1910 and
Divino Afflatu 1954, Sancti/08-29.txt) — the feast's own 5-antiphon
set ([Ant Vespera], reused verbatim at Lauds as [Ant Laudes]), now
wired through both the newly rank-agnostic Lauds/Vespers proper tier
and the new minor-hour derivation mechanism. Vespers gets only the
first four (mapped onto vu's Monastic-1617-structured four-psalm
Vespers, matching common-of-a-martyr.yml's own 109/111/112/115
baseline) — the reference's own fifth antiphon is a secular five-
psalm-Vespers detail that doesn't apply here, and is used only at
Lauds' Laudate psalm instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VFGHb4XMe6Wya4pGpPhEEi

src/data/hours/lauds-psalmody-overrides/decollation-of-st-john-baptist.yml

@@ -0,0 +1,27 @@
+# Verified against Divinum Officium (Tridentine 1906/1910 and Divino
+# Afflatu 1954, `[Ant Vespera]`), Latin/Sancti/08-29.txt +
+# English/Sancti/08-29.txt, 2026-08-29 — Lauds reuses the Vespers set
+# verbatim (`[Ant Laudes]` -> `@:Ant Vespera`).
+id: decollation-of-st-john-baptist
+groups:
+  - psalms: [92]
+    antiphon:
+      la: "Heródes enim ténuit * et ligávit Joánnem et pósuit in cárcerem propter Herodíadem."
+      en: "For Herod had laid hold upon John, * and bound him, and put him in prison, for Herodias' sake."
+  - psalms: [99]
+    antiphon:
+      la: "Dómine mi rex, * da mihi in disco caput Joánnis Baptístæ."
+      en: "O Lord my King, * give me in a charger the head of John the Baptist."
+  - psalms: [62]
+    antiphon:
+      la: "Puéllæ saltánti * imperávit mater: Nihil áliud petas, nisi caput Joánnis."
+      en: "The damsel danced, * and her mother charged her, saying: See thou ask nothing, but only the head of John."
+canticle:
+  id: canticum-trium-puerorum
+  antiphon:
+    la: "Arguébat * Heródem Joánnes propter Herodíadem, quam túlerat fratri suo Philíppo uxórem."
+    en: "John had rebuked Herod for Herodias' sake, * his brother Philip's wife, for he had taken her."
+laudate:
+  antiphon:
+    la: "Da mihi in disco * caput Joánnis Baptístæ. Et contristátus est rex propter jusjurándum."
+    en: "Give me in a charger the head of John the Baptist. * And the King was sorry, for his oath's sake."