Confirm Vigils are ferial-by-design; author Common-of-the-BVM Lauds/Vespers bundle

Finished the "ferial/other" audit bucket via each saint's own source
file. Vigils (9 saints) are not a gap at all: every vigil's own [Rule]
explicitly says "Responsory Feria"/"Versum Feria" -- deliberate rubric,
matching this app's existing isFerialOrVigil convention. Even the "ex
C1v" tag on the 6 apostle vigils resolves to the same plain ferial text
when live-queried, confirming no override applies to the Lauds/Vespers
bundle for any vigil.

Common-of-the-BVM (5 feasts) is a real category: each source file says
plain "ex C11"/"vide C11". Live-verified votive=C11: chapter Sir 24:14,
Lauds hymn "O gloriósa Dómina" (the same pre-Urban-VIII text as the
Annunciation's own separate proper), Vespers hymn "Ave maris stella,"
same responsory at both hours, distinct versicles per hour.

Surfaced one masked collision: the Annunciation now resolves through
this Common instead of the ferial default (real improvement, still
interim until its own proper content is imported). Moved the
Passiontide-seasonal-office Vespers test off its date (Mar 25) onto the
clean Mar 30.

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

src/data/propers/common/vespers-versicle-common-of-the-bvm.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-common-of-the-bvm.yml).
+id: vespers-versicle-common-of-the-bvm
+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