propers: Benedictus antiphons for February's sanctoral entries (7/7)

5 authored fresh (Dorothea, Apollonia, Scholastica, Valentine,
Matthias), 2 corrected (Agatha, Chair of St. Peter at Antioch -- both
confirmed sourced from the Roman rite's raw [Ant 1] rather than a real
Monastic 1617 rendering, same pattern as January's corrections).

Two needed translation/rewording, not just transcription: Scholastica
had no English at all in the source (translated fresh, marked draft);
Matthias's own English existed but was jarringly modern next to every
other antiphon's archaic register, so reworded to match (the
underlying verse's standard Douay-Rheims wording) and marked draft
rather than presented as a straight source transcription.

Also noted in TODO.md, not fixed: splitNamedAntiphon always marks its
output verified regardless of input status, so a draft antiphon
currently renders as if fully verified wherever it's actually
displayed -- a pre-existing issue across every hour, only now surfaced
by content with a real draft status going through it.

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

src/data/propers/common/st-dorothea-antiphon.yml

@@ -0,0 +1,12 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Dorothea's own day (2026-02-06). The Benedictus
+# antiphon -- shared word-for-word with St. Apollonia's own (both draw on
+# the same Common of a Virgin Martyr text, confirmed independently for
+# each rather than assumed).
+id: st-dorothea-antiphon
+text:
+  la: "Símile est regnum cælórum * hómini negotiatóri quærénti bonas margarítas: invénta una pretiósa, dedit ómnia sua, et comparávit eam."
+  en: "The kingdom of heaven is like unto a merchantman * seeking goodly pearls, who, when he had found one pearl of great price, went and sold all that he had, and bought it."
+status:
+  la: verified
+  en: verified