Import the Purification's own proper Lauds/Vespers chapter

Live-verified against Divinum Officium (Monastic Tridentinum 1617),
2026-02-02 (fixed date, always winnable): only the chapter is genuinely
her own (Mal 3:1, "Ecce ego mitto Angelum meum"). Responsory, both
hymns, and both versicles are all byte-identical to Common-of-the-BVM's
own already-authored content -- duplicated under her own id.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014axryJBrRswYh2niA7WCUc

src/data/propers/common/vespers-versicle-purification.yml

@@ -0,0 +1,14 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# `votive=C11` live query, 2026-08 -- distinct from the Lauds versicle
+# (see lauds-versicle-purification.yml).
+id: vespers-versicle-purification
+text:
+  la: |
+    ℣. Dignáre me laudáre te, Virgo sacráta.
+    ℟. Da mihi virtútem contra hostes tuos.
+  en: |
+    ℣. Holy Virgin, my praise by thee accepted be.
+    ℟. Give me strength against thine enemies.
+status:
+  la: verified
+  en: verified