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/05-12.yml

@@ -0,0 +1,38 @@
+# Verified against Divinum Officium (Latin Martyrologium, English translation).
+monthDay: "05-12"
+text:
+  la: |
+    Romæ, via Ardeatína, sanctórum Mártyrum Nérei et Achíllei fratrum, qui primo cum Flávia Domitílla, cujus erant eunúchi, in ínsula Póntia longum pro Christo duxérunt exsílium; póstmodum gravíssimis verbéribus attrectati sunt; deínde, cum a Minútio Rufo, viro Consulári, equúleo et flammis ad immolándum compelleréntur, diceréntque se, a beáto Petro Apóstolo baptizátos, nulla ratióne posse idólis immoláre, cápite cæsi sunt. Horum sacræ relíquiæ, simúlque Fláviæ Domitíllæ, ex Diaconía sancti Hadriáni in antíquum eórum Títulum, ubi asservabántur olim recónditæ, dénuo restaurátum, solémniter translátæ sunt prídie hujus diéi, jussu Cleméntis Papæ Octávi; qui exínde hodiérna celebrándum die indíxit étiam festum ipsíus beátæ Domitíllæ Vírginis, cujus pássio Nonis hujus mensis recensétur.
+
+    Item Romæ, via Aurélia, sancti Pancrátii Mártyris, qui, cum esset annórum quatuórdecim, sub Diocletiáno, cápitis obtruncatióne martýrium complévit.
+
+    Salamínæ, in Cypro, sancti Epiphánii Epíscopi, qui, multíplici eruditióne et sacrárum sciéntia litterárum excéllens, vitæ quoque sanctitáte, zelo cathólicæ fídei, munificéntia in páuperes et virtúte miraculórum éxstitit admirándus.
+
+    Constantinópoli sancti Germáni Epíscopi, doctrína et virtútibus insígnis, qui Leónem Isáuricum, edictum advérsus sacras Imágines promulgántem, magna fidúcia redárguit.
+
+    Tréviris sancti Modoáldi Epíscopi.
+
+    Romæ sancti Dionýsii, qui éxstitit pátruus sancti Pancrátii Mártyris.
+
+    Argýrii, in Sicília, sancti Philíppi Presbýteri, qui, a Románo Pontífice ad eándem Sicíliam ínsulam missus, magnam illíus partem convértit ad Christum. Ipsíus vero sánctitas in liberándis energúmenis maxime declarátur.
+
+    In civitáte Calciaténsi, in Hispánia, sancti Domínici Confessóris.
+  en: |
+    Commemorated at Rome, upon the way to Ardea, the holy brethren Nereus and Achilles, both martyrs. They were eunuchs belonging to Flavia Domitilla, and first suffered a long exile with her in the island of Ponza for Christ's Name's sake. Afterwards they were laid under most grievous stripes. Lastly, when Minutius Rufus, the Consular, was striving by racking and fire to force them to offer pagan sacrifices, and they said that they had been baptized by the blessed Apostle Peter and could in no wise make offerings to idols, they were beheaded. By command of Pope Clement VIII their sacred remains, along with those of Flavia Domitilla, were, upon the eve of this day, solemnly transferred from the Deaconry of St. Hadrian to the old church which bears their names, where they had formerly lain buried, and which had now been restored.
+
+    Also at Rome, upon the Aurelian Way, the holy martyr Pancras, who at fourteen years of age finished his testimony by being beheaded, in the persecution under Diocletian.
+
+    At Rome also, [in the year 304,] the holy Denis, uncle of the said blessed Pancras.
+
+    In Sicily, the holy Philip Argyrion, who was sent by the Roman Pontiff to that island, and turned a great part of it to Christ. His holiness is chiefly shown forth in the deliverance of them that are vexed with evil spirits.
+
+    At Salamis, in Cyprus, [in the year 403,] the holy Epiphanius, Bishop [of that see,] who excelled in vast learning and knowledge of the Scriptures but was also a wonder for the holiness of his life, his zeal for the Catholic faith, his generosity to the poor, and the power of his mighty deeds.
+
+    At Constantinople, [in the eighth century,] the holy Bishop Germanus, famous for his graces and teaching. He withstood the Emperor Leo the Isaurian with great faithfulness, when that Prince published his edict against the holy images.
+
+    At Trier, [in the year 640,] the holy Modwald, Bishop [of that see.]
+
+    In the city of St. Domingo de la Calzada, [in the beginning of the twelfth century,] the holy Confessor Dominic.
+status:
+  la: verified
+  en: verified