propers: Benedictus antiphons for January's sanctoral entries (9/9)

All 9 January saints with a propers id: 5 authored fresh (Marcellus I,
Paul the Hermit, Fabian & Sebastian, Vincent & Anastasius, John
Chrysostom), 3 corrected (Chair of St. Peter at Rome, Agnes,
Conversion of St. Paul -- each confirmed sourced from the Roman rite's
raw [Ant 1] rather than a real Monastic 1617 rendering, same mistake
as St. Lawrence's earlier fix), 1 left honestly missing (Hilary of
Poitiers -- this app's calendar has him Jan 23, but Divinum Officium's
own calendar has him Jan 14; flagged in TODO.md rather than guessed
at). See TODO.md for the full remaining scope and the method this
settled on after automated matching proved unreliable on real edge
cases (shared dates, saints the reference engine doesn't carry at
all).

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

src/data/propers/common/chair-of-st-peter-at-rome-antiphon.yml

@@ -1,13 +1,14 @@
-# Verified against Divinum Officium (Latin/English Sancti/01-18.txt's own
-# [Ant 1], which cross-references Sancti/02-22.txt for the actual text —
-# the two Chair-of-Peter feasts, Rome and Antioch, share this antiphon).
-# Not yet consumed by any hour's resolver (Terce/Sext/None only branch by
-# weekday today — see hours/terce.ts) — stored ready for whenever a
-# Lauds/Vespers-style commemoration or a feast-id override is built.
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, the Chair of St. Peter at Rome's own day (2026-01-18) --
+# the Benedictus antiphon. Corrects the previous version of this file,
+# which had been sourced from the Roman/secular rite's Sancti/01-18.txt's
+# own [Ant 1] instead: confirmed, like St. Lawrence's own antiphon before
+# it, to be real but different text from what Monastic 1617 actually
+# renders at Lauds.
 id: chair-of-st-peter-at-rome-antiphon
 text:
-  la: "Tu es pastor óvium, * Princeps Apostolórum, tibi tráditæ sunt claves regni cælórum."
-  en: "Thou art the Shepherd * of the sheep, and the Prince of the Apostles, and unto thee are given the keys of the kingdom of heaven."
+  la: "Quodcúmque ligáveris super terram, erit ligátum et in cælis; et quodcúmque sólveris super terram, erit solútum et in cælis: dicit Dóminus Simóni Petro."
+  en: "Thus saith the Lord unto Simon Peter: Whatsoever thou shalt bind on earth, shall be bound in heaven; and whatsoever thou shalt loose on earth, shall be loosed in heaven."
 status:
   la: verified
   en: verified