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/02-27.yml

@@ -0,0 +1,32 @@
+# Verified against Divinum Officium (Latin Martyrologium, English translation).
+monthDay: "02-27"
+text:
+  la: |
+    Insulæ, in Aprútio, sancti Gabriélis a Vírgine Perdolénte, Clérici Congregatiónis a Cruce et Passióne Dómini nuncupátæ, et Confessóris; qui, magnis intra breve vitæ spátium méritis et post mortem miráculis clarus, a Benedícto Papa Décimo quinto in Sanctórum cánonem relátus est.
+
+    Romæ natális sanctórum Mártyrum Alexándri, Abúndii, Antígoni et Fortunáti.
+
+    Alexandríæ pássio sancti Juliáni Mártyris, qui, cum ita pódagra constríctus esset, ut neque incédere neque stare posset, una cum duóbus fámulis, qui eum in sella gestábant, Júdici offértur; quorum alter fidem negávit, alter, nómine Eunus, cum dómino suo perdurávit in confessióne Christi. Ipse porro Juliánus et Eunus, camélis impósiti, per totam urbem circumdúci jubéntur, et flagris laniári, ac tandem, incénso rogo, hinc inde spectánte pópulo, combúri.
+
+    Ibídem sancti Besæ mílitis, qui, cum insultántes in prædíctos Mártyres cohibéret, delátus est ad Júdicem, et, pro fide constánter agens, cápite truncátus.
+
+    Híspali, in Hispánia, natális sancti Leándri, ejúsdem civitátis Epíscopi, qui, sanctórum Isidóri Epíscopi ac Florentínæ Vírginis frater, sua prædicatióne et indústria gentem Visigothórum, adjuvánte Reccarédo, eórum Rege, ab Ariána impietáte ad cathólicam fidem convértit.
+
+    Constantinópoli sanctórum Confessórum Basilíi et Procópii, qui, témpore Leónis Imperatóris, pro cultu sanctárum Imáginum strénue decertárunt.
+
+    Lugdúni, in Gállia, sancti Baldoméri Subdiaconi, viri Deo devóti, cujus sepúlcrum crebris miráculis illustrátur.
+  en: |
+    At Rome, the holy martyrs Alexander, Abundius, Antigonus, and Fortunatus.
+
+    At Alexandria, [in the year 250,] the holy martyr Julian. He was so crippled by the gout that he could neither walk nor stand, and was carried before the judge in a chair by two servants. Of these two servants one denied the faith the other, whose name was Eunus, persisted in confessing Christ along with Julian. They were both placed upon camels and led about the whole city, lashed, and at length publicly burnt upon a pyre.
+
+    There also the holy soldier Besas. He rebuked some who were jeering at the martyrs aforenamed, for which cause he was accused before the judge, and as he stood firm in the faith he was beheaded.
+
+    At Seville, in Spain, [in the year 596,] holy Leander, Bishop of that city, by whose preaching and labours, assisted by Reccared, King of the Visigoths, that nation were converted from the Arian misbelief to the Catholic faith.
+
+    At Constantinople, [in 750] the holy Confessors Basil and Procopius, who in the time of the Emperor Leo the Isaurian, contended valiantly for the honouring of holy images.
+
+    At Lyon, [about the year 660,] holy Baldomer, [locksmith and subdeacon,] the man of God whose grave is famous on account of the miracles which are oftentimes wrought there.
+status:
+  la: verified
+  en: verified