Prime: real content (psalms, Martyrology, Regula) and ordo corrections

Pulls in verified content from Divinum Officium rather than placeholders:
17 psalms (2, 6, 7-19, 118, 129), 365 days of the Martyrology, and the full
121-reading Regula cycle, plus the Athanasian Creed.

Ordo corrections driven by review against the real engine output:
- Capitulum and Preces now pick a Sunday/feast vs. ferial form
  (calendar/isSundayOrFeast); ferial Preces said every ferial day by choice.
- Chapter responsory, hymn doxology, and the opening versicle's
  Alleluia/Laus tibi all vary by season via a shared resolver
  (hours/seasonal-propers.ts).
- Real Roman Kalends/Nones/Ides Latin dating (calendar/roman-date.ts,
  verified against 363/365 real Martyrology headings) plus the historical
  "bis sextus" Feb 29 handling, and the Martyrology's Luna (moon-day)
  heading (a ported Golden-Number calculation).
- Fixed responsory structure (was missing its initial full repeat),
  weekday psalm antiphons (opening as incipit-or-full by rank, full
  repeat after the psalms/Creed as its own part, "*" chant mark kept),
  scripture citations on the capitulum/lectio brevis, and V./R. markers
  switched from Unicode symbols to plain text for reliable font rendering.
- Dropped Pretiosa and the dead-commemoration psalm (129) for time;
  trimmed section headings down to the ones that are actually named
  things (Preces, Chapter Office, etc. no longer relabel connective text).

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

src/data/martyrology/02-28.yml

@@ -0,0 +1,28 @@
+# Verified against Divinum Officium (Latin Martyrologium, English translation).
+monthDay: "02-28"
+text:
+  la: |
+    Romæ natális sanctórum Mártyrum Macárii, Rufíni, Justi et Theóphili.
+
+    Alexandríæ pássio sanctórum Cæreális, Púpuli, Caji et Serapiónis.
+
+    Ibídem commemorátio sanctórum Presbyterórum, Diaconórum et aliórum plurimórum; qui, témpore Valeriáni Imperatóris, cum pestis sævíssima grassarétur, morbo laborántibus ministrántes, libentíssime mortem oppetiére, et quos velut Mártyres religiósa piórum fides venerári consuévit.
+
+    Romæ sancti Hílari, Papæ et Confessóris.
+
+    In território Lugdunénsi, locis Jurénsibus, deposítio sancti Románi Abbátis, qui primus illic eremíticam vitam duxit, et, multis virtútibus ac miráculis clarus, plurimórum póstea Pater éxstitit Monachórum.
+
+    Pápiæ Translátio córporis sancti Augustíni Epíscopi, Confessóris et Ecclésiæ Doctóris, ex Sardínia ínsula, ópera Luitprándi, Regis Longobardórum.
+  en: |
+    At Rome, the holy martyrs Macarius, Rufinus, Justus, and Theophilus.
+
+    At Alexandria, the holy martyrs Caerealis, Pupulus, Caius, and Serapion.
+
+    Likewise at Alexandria are commemorated the holy Priests, Deacons, and many others who cheerfully met death in ministering to the sick in the great plague which devastated that city, [in the third century,] in the time of the Emperor Valerian, and whom the godly reverence of the faithful hath been used to honour as martyrs.
+
+    In the Jura mountains, toward Lyon, [in 460,] the holy Abbot [of Condat,] Romanus, who was the first to live there as a hermit, and becoming famous for many graces and miracles, became also the father of many monks.
+
+    At Pavia is commemorated the translation of the body of holy Augustine, Bishop of Hippo, which was brought [in the year 722] from the island of Sardinia by the care of Luitprand, King of the Lombards.
+status:
+  la: verified
+  en: verified