Add September sanctoral content: 10 saints/feasts

Continues the full-year sanctoral import: St. Stephen of Hungary, St.
Pius X, St. Lawrence Justinian, Ss. Protus and Hyacinth, the Holy Name
of Mary, the Seven Sorrows of the BVM (Duplex II Classis, own full
proper content except Nocturn 2, a real cross-reference to Passion
Friday's own temporal content), the Impression of the Stigmata of St.
Francis, St. Joseph of Cupertino, Our Lady of Ransom, and St.
Wenceslaus.

Ss. Protus and Hyacinth (Sep 11) were previously excluded under a
stale "real secondary saint blocked by the Nativity's own octave, same
as St. Clare in August" note -- wrong, same class of error already
corrected for St. Tiburtius/Susanna in August: the octave-window
exclusion was never a real rule. Sep 15 (day 8 of the Nativity's own
octave) is now also the Seven Sorrows' own fixed day (Duplex II
Classis), which wins outright with the octave still commemorated
alongside her -- updated september-sanctoral.test.ts's own "excluded
secondary saints" case accordingly, splitting it into the still-valid
Sep 9 (Gorgonius) half and a new Sep 15 case reflecting the real
winner.

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

src/data/propers/common/holy-name-of-mary-antiphon.yml

@@ -0,0 +1,13 @@
+# Read directly from web/www/horas/Latin/Sancti/09-12.txt's own
+# untagged [Ant 1] and its English counterpart -- a real, proper
+# antiphon of this feast, not a Common substitution. (Verbatim text
+# shared with our-lady-of-mount-carmel-antiphon.yml -- a coincidental
+# reuse of the same formulaic BVM-commemoration wording already present
+# in the reference source itself.)
+id: holy-name-of-mary-antiphon
+text:
+  la: "Sancta María, * succúrre míseris, juva pusillánimes, réfove flébiles, ora pro pópulo, intérveni pro clero, intercéde pro devóto femineo sexu: séntiant omnes tuum juvámen, quicúmque célebrant tui sancti nóminis commemoratiónem."
+  en: "O Holy Mary, * be thou an help to the helpless, a strength to the fearful, a comfort to the sorrowful; pray for the people, plead for the clergy, make intercession for all women vowed to God; may all that are keeping this Commemoration of thine holy Name feel the might of thine assistance."
+status:
+  la: verified
+  en: verified