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/08-18.yml

@@ -0,0 +1,36 @@
+# Verified against Divinum Officium (Latin Martyrologium, English translation).
+monthDay: "08-18"
+text:
+  la: |
+    Prænéste natális sancti Agapíti Mártyris, qui cum esset annórum quíndecim, et amóre Christi fervéret, jussu Aureliáni Imperatóris tentus, ac primo nervis crudis diutíssime cæsus, deínde sub Antíocho Præfécto gravióra supplícia passus; exínde cum ex præcépto Imperatóris leónibus objicerétur, et mínime læsus esset, gládio ministrórum coronándus percútitur.
+
+    Romæ beatórum Joánnis et Crispi Presbyterórum, qui in persecutióne Diocletiáni multa Sanctórum córpora officiosíssime sepeliérunt, quorum méritis et ipsi póstmodum sociáti, gáudia vitæ ætérnæ meruérunt.
+
+    Item Romæ sanctórum Mártyrum Hermæ, Serapiónis et Polyǽni, qui per angústa, saxósa et áspera loca raptáti, ánimas Deo reddidérunt.
+
+    In Illýrico sanctórum Mártyrum Flori et Lauri artis lapicidínæ, qui, consúmptis martýrio eórum magístris Próculo et Máximo, sub Licióne Prǽside post multa torménta in profúndum púteum sunt demérsi.
+
+    Myræ in Lýcia sanctórum Mártyrum Leónis et Juliánæ.
+
+    Metis in Gállia sancti Firmíni Epíscopi et Confessóris.
+
+    Romæ via Lavicána sanctæ Hélenæ matris Constantíni Magni piíssimi Imperatóris, qui primus Ecclésiæ tuéndæ atque amplificándæ exémplum céteris Princípibus prǽbuit.
+  en: |
+    At Rome, upon the Lavican Way, [in the year 328,] holy [widow] Helen, [Empress of the West,] mother of that most religious Emperor Constantine the Great, who was the first to leave to other princes the pattern of how to protect and spread the Church.
+
+    At Palestrina, Italy, [in the year 274,] the holy martyr Agapitus, [principal patron of the Church in Palestrina]; he was fifteen years of age, and hot with the love of Christ. He was tried by command of the Emperor Aurelian, and was first scourged for a very long time with raw thongs, afterwards he suffered worse under the Prefect Antiochus. By command of the Emperor he was thrown to lions, but as these hurt him not at all the servants smote him with the sword, and so he went to be crowned.
+
+    At Rome, the blessed Priests John and Crispus. During the persecution under Diocletian they busied themselves in burying many bodies of the Saints, with whom they themselves were afterward made fellows, and gained the gladness of life eternal [by martyrdom.]
+
+    Likewise at Rome, the holy martyrs Hermas, Serapion, and Polysenus, who were dragged through strait, rocky, and rough places until they gave up their souls to God.
+
+    In Illyricum, [in the second century,] the holy martyrs Florus and Laurus, quarrymen, who, after their masters Proculus and Maximus had been martyred, were put to many torments, under the President Licion, and then thrown into a well.
+
+    At Myra, in Lycia, the holy martyrs Leo and Juliana.
+
+    At Metz, in Gaul, [in the fourth century,] the holy Confessor Firmin, [eleventh] Bishop [of that see.]
+
+    At Montefalco, in Umbria, [in the year 1308,] the blessed Virgin Clare, a Nun of the Order of Hermits of St. Augustine, on whose heart the mysteries of the suffering of the Lord were found set forth anew, and are therein most reverently worshipped. The Supreme Pontiff Leo XIII solemnly enrolled her name in the list of those of the holy Virgins.
+status:
+  la: verified
+  en: verified