Resolve 15 "unwinnable" stubs' Benedictus antiphons from source directly

Direct feedback on the previous commit's framing: "unwinnable" was
describing an artifact of Divinum Officium's own single-winner
precedence model, not a real content gap -- this app already renders
commemorated saints on their own terms and doesn't need a saint to win
a live query to have real content. Fixed by reading each of the 15
saints' own already-validated fileref directly (the exact same fileref
their collect was already sourced from during the Kalendaria-table
pull) for its [Ant 1] section, falling back to whatever Common its own
[Rule]/[Rank] "vide"/"ex CXX" reference names when there isn't one --
the same proper-then-Common shape getDayCollect/collectCommon already
uses, just applied to the Benedictus antiphon too.

14 of the 15 had no [Ant 1] of their own at all -- clean Common
fallback, and every one of their C-numbers falls inside a family
already live-query-verified in the previous commit, so
minorHoursCommon/benedictusCommon were wired directly with full
confidence: St. Marcus, St. Felix (Presbyter), St. Hermes, St.
Saturninus, St. Prisca, St. Thecla, St. Catherine of Siena, Ss.
Machabees, Ss. Marius/Martha/Audifax/Abachum, Ss. Twelve Brothers, Ss.
Alexander/Eventius/Theodulus/Juvenal, Ss. Felix/Simplicius/
Faustinus/Beatrix, Ss. Nabor and Felix. St. Felicitas needed one new
category (C7), but it turned out to be a cross-reference resolving to
text byte-identical to the already-verified common-of-a-virgin.

The 1 remaining (Ss. Euphemia, Lucy, and Geminian) does have her own
real [Ant 1] -- but marked draft, not verified, on principle: St.
Alexius's own file also has a genuine [Ant 1] that his actual
live-rendered Benedictus antiphon doesn't use (common-of-an-abbot's
text instead), so a raw [Ant 1] read alone isn't sufficient proof, and
for a saint that can never be live-checked at all that uncertainty
can't be resolved either way -- used the text anyway, honestly flagged
rather than claimed as confirmed.

St. Frances of Rome and St. Bibiana (the older, pre-Kalendaria-table
109-saint pass) are good candidates for this same fix but weren't
touched here, since their own fileref was never derived by this
session's work.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/calendar/saints/ss-nabor-and-felix.yml

@@ -12,3 +12,8 @@ name: "Ss. Nabor and Felix, Martyrs"
 rank: simplex
 common: common-of-several-martyrs
 propers: "ss-nabor-and-felix"
+# No [Ant 1] of its own in the source (07-12o.txt) -- [Rule]/[Rank] point to
+# Commune/C3a-1 instead, the same C-number family already live-query-verified
+# for common-of-several-martyrs.yml (see that section of TODO.md).
+minorHoursCommon: common-of-several-martyrs
+benedictusCommon: common-of-several-martyrs